5.9L vs 6.7L Cummins: Which One is Actually Better?

Автокөліктер мен көлік құралдары

Article: dustrunnersauto.com/cummins-5...
The 5.9L is a little bit more reliable and lacks the annoying emissions components which plague all modern diesel engines, but the lower displacement and fixed geometry turbo limit performance unless you add a different turbo.
The 6.7 has more displacement and a larger variable turbo, allowing it to make more low-end torque and more top-end power, however, it’s more to head gasket failure and the emissions components occasionally cause issues.
If you think reliability is the most important feature of an engine, the 5.9L is the better engine, however, if you’re interested in outright performance, the 6.7 is the better engine. Of course, this video mostly omits the older 12v engines with fully mechanical injection systems which are known for being crazy reliable.
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  • @jssomewhere6740
    @jssomewhere67405 жыл бұрын

    Went from a 6.7 to a 5.9. I tow aprox 70,000 a year. Don't want to up set 5.9 folks, but for my need I've found 6.7 to work for me better. My 2010 6.7 provided me with 210,000 miles in that stretch I replaced 2 water pumps 1 alternator. All other repairs were not done on the power train. The truck I'm currently piloting is a 5.9. It works ok, but I have had to adjust my trip times as I'm slowed more often than in the past. I also have a hard time maintaining an exhaust gas temp that will not damage the truck. Learning to drive with new limits is I guess a personal problem to get past. The up side to this new, to me 5.9 is the fuel mileage. My new 5.9 gets almost 50% better mileage. That is the main reason I'm keeping it.

  • @mrrod3004

    @mrrod3004

    2 жыл бұрын

    My 6.7 gets 21 Mpg at 85mph. 16 to 18 towing my 15k camper. You have to emission delete.

  • @jssomewhere6740

    @jssomewhere6740

    2 жыл бұрын

    @@mrrod3004 I've worn through another truck since I wrote this. I've got a 2011 now. I'll try your suggestion.

  • @bootmender
    @bootmender4 жыл бұрын

    I have 2 of the 5.9 / 12 Valve in 1 ton trucks I uses on my farm and I love them. I retired from Union Pacific Railroad as a electrician. The newer Technology is great as long as you have a standby mechanic to keep it running. Union Pacific Railroad uses older Locomotives with mechanical blowers in there Local switch yards till about 2012, because all you had to do was fuel them check the oil and run the shit out of them. They were bullet proof.

  • @iigarcia3087

    @iigarcia3087

    3 жыл бұрын

    those switcher can take beating like my 12v cummins

  • @donpoole1489

    @donpoole1489

    2 жыл бұрын

    I work out of livonia for u.p.

  • @JillandKevin
    @JillandKevin4 жыл бұрын

    My wife and I are full time musicians and full time in our 26 foot travel trailer (30' overall). We pull it with our 2007 3500 4X4 with a fully enclosed fiberglass CargoBody cabover work van style camper. We sought out the last 5.9 (early 2007) for it's better mileage. With the cabover semi-empty (around 700 lbs) at 55 mph on level freeway, we got 25.5 mpg. Now that the camper is full of tools, and pulling the trailer (8,000 lbs), were averaging just shy of 16 mpg, which is where the 5.9 really shines, especially now that diesel is so expensive!

  • @Crazystuffyousee
    @Crazystuffyousee5 жыл бұрын

    Simply put...the 6.7 was needed to achieve more power but still meet the more and more stringent emission requirements than the 5.9 could. The 5.9 is still the dominate engine in the performance world.

  • @jasonwilliams3223

    @jasonwilliams3223

    5 жыл бұрын

    Not so much...

  • @griffinpierce7691

    @griffinpierce7691

    5 жыл бұрын

    Yeah, no.

  • @brandonshattuck3737

    @brandonshattuck3737

    5 жыл бұрын

    Crazystuffyousee a few 5.9 did come with egr to meet California emissions

  • @gabrielf1911

    @gabrielf1911

    4 жыл бұрын

    The 5.9 does well in the performance world but the big thing for performance cummins guys is a 6.4 cummins. Alot of racers and sled pullers use a 6.4 these days and yes I mean 6.4, not 6.7.

  • @slit4659

    @slit4659

    4 жыл бұрын

    Emissions what's that.....it's all long gone

  • @mongo5888
    @mongo58884 жыл бұрын

    Its all about the mechanical 12 Valve 5.9 man. A true LEGEND.

  • @aaronoconnor606

    @aaronoconnor606

    3 жыл бұрын

    Definitely the most reliable cummins

  • @vendetta1306

    @vendetta1306

    3 жыл бұрын

    Bingo

  • @rickshiandmoku4128

    @rickshiandmoku4128

    3 жыл бұрын

    I'll take a deleted 6.7 anyday so I can actually pass someone with a load lol. There plenty of 6.7s out there with a million miles

  • @vendetta1306

    @vendetta1306

    3 жыл бұрын

    @@rickshiandmoku4128 Sure there are, but we're talking about less electrical junk to go wrong

  • @vendetta1306

    @vendetta1306

    3 жыл бұрын

    @Josiah Juan Get outta here fuck

  • @billhouse8585
    @billhouse85855 жыл бұрын

    Being a former diesel mechanic I love my 5.9 24v because it is so simple. With the NV4500 trans it makes all the power I will ever need and no repairs after 20 years .The only weak link is the lift pump starving the VP44 injection pump. A good fuel pressure gauge and keeping the filter changed is so important. Unless I wreck it it will be the last truck I ever own.

  • @Bananahammock88

    @Bananahammock88

    2 жыл бұрын

    My father in laws, with a manual struggles a bit more pulling my 43 foot fifth wheel than my 6.7

  • @TexanUSMC8089

    @TexanUSMC8089

    2 жыл бұрын

    I had a 97 12V that I shouldn't have sold. They don't make half the power of a modern diesel, but they were reliable.

  • @kdw75

    @kdw75

    2 жыл бұрын

    Yeah. I love mine too. Bought it new in '98, but it is rusting a lot. I have put lots of upgrades on it and I am sure it will last many more decades.

  • @concretesub8253

    @concretesub8253

    2 жыл бұрын

    @Bill House Hey what type of lift pump you recommend changing it out with?

  • @SocalMarineUSA

    @SocalMarineUSA

    2 жыл бұрын

    just picked up a 2000 5.9 with 60k miles and an allison tranny for 900 bucks, everyone tells me its a great score (i just need the turbo).

  • @dieselbroke7389
    @dieselbroke73894 жыл бұрын

    Owned both and have love for each of them. 6.7 will work if deleted and I would recommend arp head studs. The 68rfe 6 speed automatic transmission is great when working but prone to failure with hp increase unless built. The g56 6 speed manual transmission is probably more reliable but not as much fun on the street. Like said in this video the 5.9 is more reliable but has some disadvantages too. If I was going to have to pick between the 2 I would pick the 5.9 just because of its overall reliability. That being said I really do love them both. Just my opinion. To each, their own.

  • @darryladams519

    @darryladams519

    2 жыл бұрын

    I love driving my 2015 3500 drw with the g56. But I've always enjoyed rowing gears. Some stuff has fell off on a dirt road.

  • @mrrod3004

    @mrrod3004

    2 жыл бұрын

    Grabing gears is way more fun then a auto

  • @everettivey
    @everettivey4 жыл бұрын

    I have the 6.7 on our ranch. Pulls heavy trailers with livestock and/or feed and it works great. The trucks in this video... A laughing stock to an American producer. Stay in the city and keep pretending food comes from the back of the store.

  • @SimonTrent8000
    @SimonTrent80005 жыл бұрын

    Why so much footage of mall crawlers?

  • @SilverStarHeggisist

    @SilverStarHeggisist

    5 жыл бұрын

    Because they're the ones getting in front of cameras

  • @jayirving6996

    @jayirving6996

    5 жыл бұрын

    It should be illegal to have tow mirrors out unless u have a trailer behind ya.. Looks so Fuckin dumb!

  • @michealk8053

    @michealk8053

    5 жыл бұрын

    Where’s the mud grips at?

  • @tyrenner

    @tyrenner

    5 жыл бұрын

    @@jayirving6996 On my 06 mega cab my moose antlers stay out bud! I'm use to them like that its not always about looks lol dont be a goon! I tow trailers almost every day and im not ganna waist my time adjusting a mirror every day twice a day minimum. i have 4th gen mirros with the large convex. You have to adjust that by hand so thats not happening lol

  • @johnscrazycurbs6752

    @johnscrazycurbs6752

    5 жыл бұрын

    @@tyrenner same here. Even dumber is changing out their OEM's for Shiny new tow mirrors, to match their shiny old hitch.

  • @jpag8764
    @jpag87644 жыл бұрын

    I'll take the 5.9 common rail. 325hp, 610 torque out of the box. And who needs all the black smoke 🤢? That's just fuel out the tailpipe.

  • @RC7741

    @RC7741

    4 жыл бұрын

    I've got an 05. And my work truck is a 6.7 I'll take the 5.9 over the 6.7 any day of the week.

  • @RC7741

    @RC7741

    4 жыл бұрын

    @@DieselDog1982 might wanna do some research bud, 05 HO was 325-610. Says right on the engine tag.

  • @duncandmcgrath6290

    @duncandmcgrath6290

    4 жыл бұрын

    J J haha it’s right on the data tag boy

  • @RC7741

    @RC7741

    4 жыл бұрын

    @@duncandmcgrath6290 he is probably just a salty ford boy who cant comprehend those kinda numbers prior to 2007.

  • @codylarrison8112

    @codylarrison8112

    4 жыл бұрын

    It’s 325 horse at the crank. And 610 foot pounds at the crank.

  • @scooter1391
    @scooter13915 жыл бұрын

    5.9 24v with p7100 most power and reliability for ever

  • @samualwhittemore228

    @samualwhittemore228

    5 жыл бұрын

    Not bad, but you do complicate the issue with 12 more valves. Not to mention the added cost for the conversion. However it is a great choice when compared to any of the computer run machines.

  • @scooter1391

    @scooter1391

    5 жыл бұрын

    Well you mention deleting things on new trucks and talk about adding things like new turbos so what would be best is to get a junk yard 24v cummins then converted p7100 this way you don't have to reprogram ecu's there's no way the ecu can change mechanical pump

  • @tyrenner

    @tyrenner

    5 жыл бұрын

    Im putting my 182k 02 24v in my 06 megacab with that configuration when the motor thats in it goes its got some time left though its only got 230k right now

  • @justinjustintheman8816
    @justinjustintheman88165 жыл бұрын

    5.9 cummins better

  • @samhughes9960
    @samhughes99604 жыл бұрын

    Hey man, i have been watching a couple of your videos recently and just wanted to say your doing a great job. Thank you for your clarifications and knowledge on the subject, you explain things very well and i just wanted to say job well done.

  • @chrishunter1254
    @chrishunter12544 жыл бұрын

    This emissions crap needs to end

  • @jakevimont7776

    @jakevimont7776

    4 жыл бұрын

    Absolutely 👏👏👏

  • @francissullivan6400

    @francissullivan6400

    4 жыл бұрын

    When little 19-28 year old retards stop ROLLING COAL..Diesel Trucks are like firearms..Not EVERYONE should OWN one!!!

  • @mickromer6199

    @mickromer6199

    4 жыл бұрын

    I wish I was a diesel mechanic 30 years ago when there was no emissions control and real engines

  • @isaaclawrence1113

    @isaaclawrence1113

    4 жыл бұрын

    Eletric trucks are the future

  • @mickromer6199

    @mickromer6199

    4 жыл бұрын

    @@isaaclawrence1113 highly doubt it.. electric can't go the distance, not for trucks, not for trains, not for ships

  • @joeyouruncle9850
    @joeyouruncle98505 жыл бұрын

    I'll take a deleted 6.7 anyday

  • @wakensled

    @wakensled

    4 жыл бұрын

    Deleted 6.7 all day everyday

  • @funnydubby6401

    @funnydubby6401

    4 жыл бұрын

    12 valve though he didn’t talk about, but yeah deleted 6.4 power stroke or deleted 6.7 Cummins anyway all day

  • @Zach-ju5vi

    @Zach-ju5vi

    4 жыл бұрын

    Ya 6.7 deleted from the truck and a 5.9 put in

  • @landonparker3971

    @landonparker3971

    4 жыл бұрын

    5.9 block with a 6.7 head put together for max destruction

  • @Zach-ju5vi

    @Zach-ju5vi

    4 жыл бұрын

    @@noahranker4133 power isn't everything moron. Some of us (especially mechanics like myself) like easy serviceablity, fuel efficiency and reliability.

  • @jacob7019
    @jacob70195 жыл бұрын

    Had to stop the video could not look at those "trucks" anymore

  • @kenuber4766

    @kenuber4766

    5 жыл бұрын

    Trailer Queens, spewing soot all over the place, giving Diesel a bad name! Kinda like gun ownership!!

  • @jgrove1224

    @jgrove1224

    5 жыл бұрын

    The trucks shown are atrocious.

  • @christophervassallo9686

    @christophervassallo9686

    5 жыл бұрын

    read your comment before seeing the video, scrolled through the video and saw them...... saved me 7 mins of my life. Thanks Jacob.

  • @mryeast1538

    @mryeast1538

    4 жыл бұрын

    They are trucks

  • @71sc502

    @71sc502

    4 жыл бұрын

    I thinks it's just the wheels that ruin it.everything else just makes it look clean. The only impractical things seem to be those goofy wheels

  • @Thepriest39
    @Thepriest395 жыл бұрын

    I have a 2001 5.9. Straight up the 5.9 sounds so much better. I still love it when I go into parking lots and heads turn. Obviously sound doesn’t mean it’s better but I like it.

  • @damiandelapp5490

    @damiandelapp5490

    5 жыл бұрын

    Thepriest39 I also have the 2001 5.9 HO with the NV5600 6spd we ain’t sneaking into anyplace!

  • @tsimmons1974ts

    @tsimmons1974ts

    5 жыл бұрын

    👍🏽👍🏽👍🏽👍🏽

  • @wezilla21

    @wezilla21

    5 жыл бұрын

    @@damiandelapp5490 97 7.3, you can't sneak anywhere with the older diesels

  • @southpole560

    @southpole560

    5 жыл бұрын

    I got a 2002 6 speed 5.9. Best engine/trans combo in my opinion!

  • @Nostradamus_Order33

    @Nostradamus_Order33

    5 жыл бұрын

    Great engine, take care of it, and it will take care of you.

  • @expertgaming3234
    @expertgaming32345 жыл бұрын

    5.9 cummins is by far the better engine my uncle has a 2 6.7 cummins and emissions are killing his trucks and he had a 5.9 and had no problems

  • @jondavidbristow9819
    @jondavidbristow98195 жыл бұрын

    That's like comparing the 7.3 and 6.7 Powerstroke It all depends on what you want in power In both cases the 6.7 is superior

  • @jmandella
    @jmandella5 жыл бұрын

    This is a joke of a comparison. Comparing pre emissions to post emissions is apples and oranges.... and lets face it the old 5.9 12 valve that is quickly eliminated from comparison here is the only one of the engines that can get 25-30 mpg and run a million miles... mainly due to... yup NO EMISSIONS, and mechanical everything.

  • @chazlewis900

    @chazlewis900

    5 жыл бұрын

    The first 24v with the VP 44 set up were good too, but still not like the old 12v

  • @Redsfanatic32

    @Redsfanatic32

    4 жыл бұрын

    Cp3 5.9s are just as reliable and can get just as good if not better fuel mileage than the ve44 or p7100 12 valves.

  • @chazlewis900

    @chazlewis900

    4 жыл бұрын

    @@Redsfanatic32 I've owed all three and my dad's 5.9 common rail, gets 17mpg with a 6 speed and 3.55, his 99 vp44 24v 5.9 got 18.5-19mpg with a 5 spd and 4.10 gears, his 95 12v 5.9 with an auto gets 19-20 with 3.55, and my 96 with 12v 5.9 gets anywhere from 20-25 with a 5 speed and 4.10 gears sitting at 400k miles, I got 20 pulling an 18k lb trackloader

  • @eichler721

    @eichler721

    4 жыл бұрын

    The 5.9 24V has several trucks in the million mile club as well. Mine with an eco tune and 6 speed manual would get 22-25mpg.

  • @ruralram100

    @ruralram100

    4 жыл бұрын

    @@chazlewis900 I will agree the 5.9CR is just reliable but fuel mileage is no comparison. I own an 06 5.9 six speed and 3.73 rear I only get 15 empty. My brother has a 97 12V 5 speed with 3.73 rear and he get 28 empty.

  • @gunfreak565
    @gunfreak5654 жыл бұрын

    I have more than 1 Cummins engines with emissions still intact and operational with over 750,000 miles and a couple over 1,000,000 miles. Requires more maintenance but doesn’t make them unreliable.

  • @1legOVERCOMER

    @1legOVERCOMER

    5 ай бұрын

    Are these 5.9 and what years or are the 6.7 and what years

  • @amosesh5898
    @amosesh58984 жыл бұрын

    You can upgrade the 6.7 by installing the 5.9 head, injection system, and ecu. Firepunk Diesel has a video on that While there may be some benefits to running the stock vgt turbo you will quickly find its disadvantages if you’re going for maximum power. It is actually quite inefficient with a high drive to boost pressure ratio so even if you’re running your truck basically stock you’re still better off with a relatively small fixed geometry turbo (BorgWarner S380 or S400) There are a lot of other parts that interchange on these engines such as water pump, oil pump, camshaft, valve train, front cover, etc. The 6.7 will bolt in to a previous generation truck with no modifications. This video mentions head gasket failure- the 5.9 head gaskets have been known to hold very high boost pressures even when using oe headbolts this is not the case with the 6.7 Both motors can make over 1,000 hp with compound turbos and larger injectors. Pretty much the only reason for Dodge to make the switch is emissions control. This increased displacement allowed them to comply will still competing with Ford on power output

  • @TheCustomEverythingChannel
    @TheCustomEverythingChannel4 жыл бұрын

    Never owned one up until now my 6.7 89k miles seems to run great and I can feel the power it has.

  • @miketess4272
    @miketess42724 жыл бұрын

    As a Cummins tech I will tell you a 5.9 has it all over the 6.7. Just a 12 valve 5.9 will net you 50% more than a 6.7 and it’s all mechanical. Zero issues.

  • @zachmccall1513
    @zachmccall15135 жыл бұрын

    I've had and worked the heck out of both and the 5.9 is more reliable and better mpg and I think it sounds better but the 6.7 is still reliable but when you get rid of all the bull shit on it it's definitely much stronger

  • @BigBlueGuy
    @BigBlueGuy4 жыл бұрын

    Wow, you answered my question and more. I've always liked the 5.9 though.

  • @eugenekline8518
    @eugenekline85185 жыл бұрын

    5.9 sounds alot better then the 6.7 Cummins

  • @6.7ryan87

    @6.7ryan87

    4 жыл бұрын

    When there stock with straight piped. But when you second gen swap the 6.7 it sounds like a deeper with the stationary turbo

  • @pinseekergaming4760

    @pinseekergaming4760

    4 жыл бұрын

    I Emissions deleted my 6.7 runs a lot better. That the Grandaddy 5.9 is a beast. However both of them can't compete with the 12 valve!! 😍

  • @johnkordish3546

    @johnkordish3546

    3 жыл бұрын

    Believe it or not the 6.7 L Cummins 24 valve is the newer version of the 5.924 valve valve

  • @failingdisciple938
    @failingdisciple9383 жыл бұрын

    Got an 06 5.9 24 valve mega and love it. But those older 12 valves just sound better!!

  • @isabellagarza8782

    @isabellagarza8782

    3 жыл бұрын

    I have an 06 5.9 but 24 valve crew cab and i love it.

  • @MyTubeUser321
    @MyTubeUser3214 жыл бұрын

    One thing about the 6.7 is the rod angles which is a weak point vs the 5.9. 6.7s bend rods easily when lots of fuel is dumped at low RPM. Would be a good idea to go with forged rods if you're pushing more than 1800 ft lbs of torque on a stock 6.7 bottom end.

  • @trentjones717
    @trentjones7172 жыл бұрын

    Great video! I have a 1999 2500 5.9 since new. Currently at 392000 miles. I've pulled everything under the sun and I am still on the original automatic transmission. Only problem I've had is the VP44 injector pump. The last VP44 I replaced went 170000 miles on it. I changed the lift pump out every 60000 miles regardless to keep the VP44 alive. I am in the middle of refurbishing this old gem and started out with a Fass lift pump and new injector pump. It's been an amazing truck!

  • @jaredgilford9171

    @jaredgilford9171

    Жыл бұрын

    So the 5.9 cummins with a 4 speed automatic is reliable?

  • @jayski8987

    @jayski8987

    Жыл бұрын

    Install a fuel pressure gauge after the lift pump so you know it’s working properly. That’s what I did with my 2002 after my first lift pump went bad and destroyed the vp44

  • @thesunflowchannel1995
    @thesunflowchannel19955 жыл бұрын

    I have a 1995 5.9, best cummins by far.

  • @timphillian8963

    @timphillian8963

    4 жыл бұрын

    Me too,600k and counting..No DEF and still smog exempt!

  • @melissasmess2773

    @melissasmess2773

    3 жыл бұрын

    Me too and it’s been free and clear since 2003🤑🥰👍🏻

  • @markwing05
    @markwing055 жыл бұрын

    I really love the detail you guys put in the videos. 1000 tq from factory is crazy! I like the 6.7 more. How about a video about the VG30DETT?

  • @Dustrunnersauto

    @Dustrunnersauto

    5 жыл бұрын

    I’ll put it on the list of videos to make!

  • @walterk1221

    @walterk1221

    5 жыл бұрын

    @@Dustrunnersauto the 400hp with CGI block I believe no longer has siamese cylinders. Siamese cylinders result in bores that can go out of round and are undesirable for that reason.

  • @whozaskin3639

    @whozaskin3639

    4 жыл бұрын

    @@Dustrunnersauto the vg and vq 30 Nissan are some damn fine v6 engines!

  • @dwilt622

    @dwilt622

    2 жыл бұрын

    Actually there is no passage between 1 and 2 cylinders (or any of the others). If everyone here can image lining up 6 coke cans in a row. The siamese cylinders are joined like that. There are provisions for improved flow as close as they can get so that there are no cooling issues between the cylinders. The rest is basically the same as previous years with coolant flowing around the cylinders on each side. Coolant can also flow from side to side at the front and rear of the block. Siamese cylinders actually add a great deal of integrity and rigidity to the engine block. Reply

  • @johnwieboldt1969
    @johnwieboldt19693 жыл бұрын

    Thanks for the input. Just looking to tow. Think the 5.9 with no emissions is probably the way to go.

  • @charlesisbell4340

    @charlesisbell4340

    2 жыл бұрын

    It is as long as you live somewhere that doesn't do emissions testing.

  • @markball7028

    @markball7028

    Жыл бұрын

    @@charlesisbell4340 5.9 had no emissions other that a catalytic converter. In 2007.5 with the move to 6.7L stricter emissions standards came in to play.

  • @mrjimcolemanful
    @mrjimcolemanful4 жыл бұрын

    I would be interested in knowing the difference between the 6.7 engines before and after the DEF fuel system was added. I have a 2012 model, which was the last year of the pre DEF models

  • @youremydaddy
    @youremydaddy5 жыл бұрын

    12 valve Cummins is still the king!

  • @ramman4381

    @ramman4381

    2 жыл бұрын

    I’ve owned a “KING” for 20 years, 600,000 miles and counting. 80% of those miles hauling either a dozer or a backhoe. The valve covers have never been off it. Your right in my book....the king

  • @junkyardpearls5066
    @junkyardpearls50665 жыл бұрын

    12 valve for the win

  • @norman_sage2528

    @norman_sage2528

    5 жыл бұрын

    Mechanical pump

  • @doddgarger6806
    @doddgarger68064 жыл бұрын

    6.7 with vgt is in another league towing heavy, and the 6spd at with it makes it so much better than any 5.9 truck ever dreamed of being The 6.7 doesn't "blow head gaskets", the owners do when they push drive pressure beyond the compressor map safe efficiency range, by running super duper cool race car tuner boxes to add 300 hp Anyone who says otherwise has never used both, the 4x4 5.9 trucks in tow mode are screaming at 65mph, while the 6.7 truck can tow in 5th or 6th and run 80 loaded to the hilt at an easy rpm, although 5th is better for it obviously The riced out trucks at the beginning were definitely comical The 5.9 has no emissions garbage so it will always be called the more reliable engine, but the dpf has nothing to do with the engine being reliable or not, that's a totally separate emissions system.. They're both the best engines to have ever been put in a light duty truck and probably always will be...

  • @patrickappling1
    @patrickappling15 жыл бұрын

    I own both a 2007, 5.9 and a 2018 6.7. Love them both. My 2018 is a manual and 2007 automatic. The 5.9 seems to pull better in ice and snow without the tires losing grip. The 2018 tends to over power and spin. The 5.9 had about the same fuel economy as my 6.7 driving from Alaska to Texas. With both pulling roughly 1300lbs of weight. I did delete my EGR and DEF and added some tunes to my 6.7. Which greatly increased my fuel economy and saved money not buying DEF fluid all the time. Now I hunt in my 5.9 and pull my ATV’s. My 6.7 I pull my 5th wheel on long highway trips.

  • @davidstephens4639
    @davidstephens46394 жыл бұрын

    5.9 is EMP-proof plus more MPG.

  • @timphillian8963

    @timphillian8963

    4 жыл бұрын

    My bugout vehicle!

  • @strikemaster99
    @strikemaster994 жыл бұрын

    2006 5.9 is a great platform for those who want great reliability and the ability to make great power without hurting the pockets; G56 manual trans is even more desirable.

  • @JeremiahHartmanPhotography

    @JeremiahHartmanPhotography

    4 жыл бұрын

    or a 5.9 with an Allison conversion =)

  • @jamessimpson4653

    @jamessimpson4653

    3 жыл бұрын

    @@JeremiahHartmanPhotography zf6 over both imo

  • @JeremiahHartmanPhotography

    @JeremiahHartmanPhotography

    3 жыл бұрын

    @@jamessimpson4653 ZF is never a bad choice

  • @wintonhudelson2252
    @wintonhudelson22524 жыл бұрын

    '97 5.9 12 valve with a "P"pump for the street & 4WD

  • @johnshafer7214
    @johnshafer72143 жыл бұрын

    Case IH has a 5.9 cummins. I really like how efficient that engine is. Still use that tractor and it's 33 years old.

  • @4thplt
    @4thplt5 жыл бұрын

    I'm very happy with my 08 6.7. Full delete, banks turbo and efi live tune. I went with a modest 100 hp increase. All the power I could dream of and 21 mpg on on long trips with cruise set at 70 with a 6 in lift and 37's. I've had no issues with it in the 3 years ive had it. I run Delvac and change the oil and filters every time I service my freightliner. Intervals are usually 4 to 5k.

  • @xraykadiddlehopper8067

    @xraykadiddlehopper8067

    5 жыл бұрын

    Fairy tails on mpg again.

  • @johnirwin1837

    @johnirwin1837

    2 жыл бұрын

    Wow, all that money spent to get the same or less MPG than my stock SO 6.7.

  • @4thplt

    @4thplt

    2 жыл бұрын

    All that was already done when I bought it except the tune. I had a different tune put on it. Paid $18k for it. Previous owner was broke and needed it gone quick. Been driving it 6 years. Tires, belts, water pump, shocks and U-joints is all I've had to replace. Bought it cash. So yes I got a fantastic deal. If you need it I can back it up to your face throw a chain and yank the foot out of your mouth. Know what you are talking about before you run your suck!

  • @frankiekaptchinskie4827
    @frankiekaptchinskie48275 жыл бұрын

    Also you have to take into consideration of the ho second gen they’re kinda rare but mine has 535000 miles on it and only been through 2 fuel. Pumps 1 starter and 1 turbo but if you’ve ever been in the ho second it’s a totally different animal

  • @nealloggie5834
    @nealloggie58344 жыл бұрын

    My 1st 06 was so reliable and powerful I had to get another one, I have had 211 vehicles and the 06 dodge 2500 has by far been the best and most reliable

  • @generationlost838

    @generationlost838

    2 жыл бұрын

    211? Fucking prove it

  • @willy2051

    @willy2051

    Жыл бұрын

    You’re full of it, 211 vehicles 😂😂😂 8 vehicles a year for 26 years or maybe 5 a year for 42 years😂😂😂what a ridiculous thing to say

  • @mattsutter9832
    @mattsutter98324 жыл бұрын

    i like my 12 valve hands down did a swap.out last year from a 6.0 powestroke to the 12 valve with the p pump i love it so reliable and it sounds sooo good too

  • @northerngunner2756
    @northerngunner27562 жыл бұрын

    We wanted something simple with no def so we bought a couple of 5.9’s ( 2-24 valves and 1- 12 value) and they have been great.

  • @TheJoetrap
    @TheJoetrap4 жыл бұрын

    2:51 that 03 dually in the back tho

  • @jrlopez4341
    @jrlopez43415 жыл бұрын

    I have a 1991 Dodge duly 35 runs great never had any issues I have over 1,000,000 miles does not smoke clean body and motor I just recently changed the fuel pump injector pump rebuilt it put a new one other than that no problems runs great

  • @Man_in_a_Gucci_Suit

    @Man_in_a_Gucci_Suit

    4 жыл бұрын

    Make a video with it as proof

  • @jr5p418

    @jr5p418

    4 жыл бұрын

    Lol proof.... Its a cummins. Theres your proof.

  • @duanehenicke6602

    @duanehenicke6602

    2 жыл бұрын

    @@Man_in_a_Gucci_Suit no way of proving it. None of the first gens would clock that many miles on the odometer. Gears always stripped way before. Mine quit at 181k.

  • @jond1536
    @jond15364 жыл бұрын

    Hello, as someone else said that the all mechanical 5.9 is the best. 91 N/IC stock with a bit of added timing I regularly obtain 20-24 MPG, replaced the 727 (37RH) to a 46RH with 3.08 rear gear set 335800 Miles on the ticker. I don't ever expect to sell and oil samples show minimal wear, 1.5 Million miles expected (ill probably die before that). Best purchased I ever made and great mileage. Love that pickup and still in todays road climate I love to drive it. Pretty darn good for an old beast.

  • @seanjohnson2695
    @seanjohnson26954 жыл бұрын

    This video gives me heartburn 😂

  • @sethmoore6565
    @sethmoore65655 жыл бұрын

    Also need to take into account the transmission options available for both. 5.9 48re and g56 or 6.7 68rfe aisin and g56 the 48 is an awesome trans

  • @freightshakernation9429

    @freightshakernation9429

    5 жыл бұрын

    And the mv5600

  • @nellyfarnsworth7381

    @nellyfarnsworth7381

    5 жыл бұрын

    The only automatic transmission for me is the AISIN.

  • @b.7401
    @b.74015 жыл бұрын

    The 2003-2007 actually does have egr. It has in cylinder EGR via the camshaft. The lobe separation anges are closer than on the pre 2003. 98degrees vs 106degrees I believe. Closes exhaust valve a little early to trap exhaust gas.

  • @RJ-sr5dv

    @RJ-sr5dv

    4 жыл бұрын

    SlimJim, Hopefully you will see this question... or anyone else who knows... tia for your reply. Will an older design cam eliminate the IN CYLINDER EGR ???...

  • @b.7401

    @b.7401

    4 жыл бұрын

    @@RJ-sr5dv Hey buddy. From my understanding, having the vp44 24 valve 98.5 to 2002 camshaft is the best stock camshaft cummins ever put into the 5.9. In short answer, yes, a cam upgrade will eliminate most if not all of the cylinder egr but it should be noted that cummins also had other variables in the mix to achieve in cylinder egr, and to be emissions compliant, such as the smaller turbine housings on the he341 and he351 turbochargers as well as different emissions friendly ecm programming and I'm sure that the piston bowl shapes, injector spray angles, injection events (which are different from 2003-2004.5 to 2005-2007) are a factor as well. If you do a cam swap, it should take care of most of it but I would do custom tuning too from a place that has tested the tunes on a dyno with that cam in a common rail engine and with close to the setup that you will have. Hope this helps brother!

  • @RJ-sr5dv

    @RJ-sr5dv

    4 жыл бұрын

    Slim Jim -- Thanks for that detailed reply.. Very informative

  • @bajatuna
    @bajatuna4 жыл бұрын

    Thanks, great comparison. Myself I prefer the 5.9 for reliability, and better fuel economy in general. My 2002 LB/4X4/4 door was getting about 24 MPG with full cab and bed (not towing).

  • @JeremiahHartmanPhotography

    @JeremiahHartmanPhotography

    4 жыл бұрын

    If im nice I can get about 21-23mpg in my 5.9 megacab 4x4 dually

  • @MrProject350
    @MrProject3504 жыл бұрын

    I would love to see this on another platform.

  • @themikekellett7012
    @themikekellett70123 жыл бұрын

    I've owned all three models of the engine and understand each was a well thought out natural evolution of the prior ones. My 12 valve had 400K on it when I sold it and its running around yet today. My 24 valve 5.9 was just as dependable but suffered from poor quality components such as step pump and water dispersal system. My 6.7 has ran flawlessly for 188K with only minor issues with the TIPM. Cummins is in a different league than the competition so any comparison is pointless.

  • @JosephArata

    @JosephArata

    2 жыл бұрын

    Problem is, everyone is on the delete train. You don't need to delete the emissions systems.... Then, when they have problems with their engine, they suprised pikachu and blame it on the emissions system, creating a false narrative. The engine was designed to run with the equipment it has. Not run with a S400 turbo, deleted egr system, dpf, and 200 HP injection map in the ECM.

  • @Perry-ck1hv
    @Perry-ck1hv5 жыл бұрын

    Love my 05 3500, 5.9👍♥️🇺🇸

  • @MrChuntaro
    @MrChuntaro5 жыл бұрын

    I love my 2004 HO 5.9 dually. I am the original owner and am considering the new 2019 HO 6.7 but my 5.9 is part of the family and has earned her keep.

  • @DMan1198
    @DMan11984 жыл бұрын

    I have 3 notes. 1: the term is destroking where they’re putting 5.9 cranks into 6.7 blocks. Resulting displacement is 394ci. 2: The vgt uses the same 60/86 compressor as the 04.5-07 5.9’s, and the same turbine wheel (I’ve measured many of them, they all fit in the same hole, but there’s a 3-4mm spread in inducer/exducer measurements), and the vgt itself is primarily there to facilitate ego by creating higher backpressure. 3: head gasket failures are principally due to incorrect injection timing. Basically to much timing for the fuelling puts the pressure spike too close in the wrong spot. My preference is the 6.7 due to its ability to spool significantly larger turbos with ease.

  • @MrLegacy36
    @MrLegacy365 жыл бұрын

    Honestly. I think all turbo Diesel engines are pretty amazing. They each have their flaws, but all can be made “bulletproof” without a whole lot of money. I have a 2011 F250 with the 6.7 diesel. I’ve done a few things to prevent failure and it’s been nothing but outstanding work truck and fast. I love the Cummins and duramax seem great too, Allison transmissions are always nice. But a lot comes down to maintenance. Diesel is a different beast. Myself, I like to drain my fuel filter every so often and replace them bout every 3 oil changes. Most people won’t and bad things happen

  • @gheft762

    @gheft762

    4 жыл бұрын

    Cant rat on a well kept diesel of any breed

  • @braveheart2785

    @braveheart2785

    2 жыл бұрын

    Why you drain it and change it so often?

  • @MrLegacy36

    @MrLegacy36

    2 жыл бұрын

    @@braveheart2785 well. I believe I read that in a manual somewhere to change them every 15,000 miles, so 3 oil changes for me. I learned that for a Diesel engine the fuel system is a huge part, expensive, and the fuel pump and glow plugs rely on clean diesel for lubrication. And the fuel filters are cheap too. 1 fuel filter, 1 fuel filter/water separator.

  • @oldcroneysgarage9739
    @oldcroneysgarage97395 жыл бұрын

    5.9 cummins not as computerized

  • @danietkissenle

    @danietkissenle

    3 жыл бұрын

    I basically bypassed all the computer controls on mine

  • @daw7189
    @daw71894 жыл бұрын

    I had a 1996 12 valve and have a 2004 common rail. Both awesome engines. For reliably I choose a 5.9. But I would be just as happy with a 6.7.

  • @scotcoon1186
    @scotcoon11862 жыл бұрын

    Some guys swapped parts from the 5.9 to their 6.7s and ran them with the vp44 due to emissions. Said driveability was improved The 6bt debuted in Case heavy equipment. One can source parts for the one on the dodge from them.

  • @dustinfickas9786
    @dustinfickas97865 жыл бұрын

    Hands down the 5.9 I have an 07 with 445000 miles and all it’s had is a 2 clutches and 1 transmission and I use it daily for cross country towing

  • @eased4183

    @eased4183

    4 жыл бұрын

    Yessir towing is the point of the cummins, people joke on my grandfathers 24 valve thats been passed down to me but i find it funny that these kids have tow mirrors on their trucks and ridiculouse rims and tires and they aint even using it for what its meant for. So what i cant roll coal, i can tow a damn church.

  • @givnofuchs5742
    @givnofuchs57425 жыл бұрын

    This video should be titled “The difference between 5.9 and 6.7 Cummins”.

  • @logancattles6831
    @logancattles68315 жыл бұрын

    Well done video

  • @youngguns1319
    @youngguns13194 жыл бұрын

    I just bought both lol got a 89 5.9 and love it all around I bought a 2012 brand new and love the power the 89 is stock the 6.7 is deleted and tuned and I have put over 200k on the 6.7 and pulled a lot of heavy heavy things and I don’t treat her nice and not a single break you must build the truck for the task your using it for to get the best truck

  • @jonmaciel4696
    @jonmaciel46965 жыл бұрын

    How I see it both are good but Fall into different categories the 5.9 for towing /traveling the 6.7 drag strip racing and messing around but at the same time both can do the two things 🤷‍♂️ just my opinion

  • @calebgodwin3224
    @calebgodwin32245 жыл бұрын

    you have the injector firing voltage backwards. We are working through this issue trying to run the more reliable 6.7 injector in a 5.9 truck running the 5.9 ecm. The 5.9 injectors fire at 18v and hold at 18v the 6.7 injectors fire at 24v and hold at 18v so we are getting a sluggish opening on the 6.7 injectors causing a rough start.

  • @mountainman4852
    @mountainman48525 жыл бұрын

    I have my 5.9 24v, for 14 years, only had to change the water pump, belt tensioner , fly wheel sensor, clutch and belt few times. Now is in his 494,000 km, at is still purring like kitten. With Lucas oil, engine running more quite!

  • @MarkPdot
    @MarkPdot4 жыл бұрын

    I'm confused, you state with all those upgrades the 6.7 L you can get 390 CI. Unless I'm mistaken a 6.7 L is already at or above 400 CI stock isn't it?

  • @bloodbought3029
    @bloodbought30295 жыл бұрын

    I own 95 12 valve 5.9 stick Also own 08 6.7 450 auto deleted My fav is the 5.9 virtually bulletproof ... although having great issues maintaining the body

  • @davidfingerlin7368
    @davidfingerlin73685 жыл бұрын

    5.9 is a more reliable engine, more fuel efficient, however the 6.7 pulls and works so much better! I’ve owned and worked both.. as a daily, I’ll take my 06 5.9, if I’ve gotta haul heavy weights and push a lotta wind I’ll take the 6.7 hands down.

  • @rustycannon712

    @rustycannon712

    4 жыл бұрын

    5.9L is not more fuel efficient. I have gotten 23mpg from my 2016 6.7L unloaded many times and see 21 daily commute.

  • @nrfa6229
    @nrfa62294 жыл бұрын

    I recently looked at which diesel engine that Ram uses on the 2020 is the I6 diesel. I looked online at 10 new rams and they all showed them having the I6 diesel engines.

  • @parsonsdiggsdefense7119
    @parsonsdiggsdefense71194 жыл бұрын

    Can anyone tell me what the towing capacity is for a 08 5.9 3500 dullay? I have found one lifted but I worry about the trans issues with dodge? I need to know the towing capacity from the hitch? To my knowledge the truck has never had a 5th wheel ball in the bed.

  • @RJ-sr5dv

    @RJ-sr5dv

    4 жыл бұрын

    So Michael, Dodge changed to the 6.7 in mid 2007...! Unless someone swapped out the 6.7 for a 5.9 in that 08, !!! For the towing numbers go to the web... Mine is a 06 Dually, 5.9 with 4.10 gears, I tow a box trailer and a boat... Mine is cat Deleted with a straight 4”.... in 06 no EGR, Milage still sucks at 16 mpg towing at 65 mph... I get 18 mpg on the highway not towing... FWITW I have a ARE LARGE / tall bed CAP... which I am guessing weighs about 300 pounds.... In addition there is always about 500 pounds of cargo in the bed , Can’t tell if the aerodynamics of that tall bed capper hurts or helps in the milage department...

  • @kowboy83ra
    @kowboy83ra5 жыл бұрын

    I guess my rusty bone stock 03 with 201k miles wouldn't be allowed to be on this video.

  • @sanderaadams4991

    @sanderaadams4991

    3 жыл бұрын

    my 03 has 407k still going strong with clean oil

  • @marufali6205
    @marufali62055 жыл бұрын

    12v 5.9 pretty bulletproof

  • @Edsrandomthingschannel9295
    @Edsrandomthingschannel92953 жыл бұрын

    Thanks for the vid. I always wanted to know the differences. Sounds like both engines are good, it just depends on personal preference/use. For me, I'm glad I have the 5.9 version for reliability as I have no need or desire to add any performance mods. I have an '03 3500 Ram dually 4WD with the 6 speed manual I bought used in 2009 with about 55K miles on it. Almost 12 years later now, it now has a little over 135K miles on it. I only use it for travel. One year it sat for the whole year in the garage, which wound up costing me over $400 dollars to replace the Optima batteries. I now take it out once a month for a short drive, about 30 -50 miles to keep everything working.

  • @mrtopcat2
    @mrtopcat24 жыл бұрын

    I'm considering a 2020 Cummins and have 2x QUESTIONS or concerns and hope someone could chime in. 1) How loud is the 2020 Cummins at idle in comparison to earlier years. E.g. our neighbor has a 12V 5.9 and it idles way too loud. I heard a newer Power Storke at the gas station and it was really whisper quiet. Same with GM. Is this Cummins already that way too? 2) Would this 2020 Cummins offer reliability for a 10.000 mile per year, non-towing, mostly daily driver to work, application such as mine. OR do these engines need to be pushed and in order not to get dirty and end up with clogged up emissions components. 3) I know probably a gas engine would be more suitable for my use, but I really want to avoid the Hemi's MSD.

  • @daltoneller4141
    @daltoneller41415 жыл бұрын

    I love my 93 dodge d350 5.9L v12 Cummins

  • @marklaumond5241
    @marklaumond52415 жыл бұрын

    Just went over 310000 miles on my 97 12 valve still running like new

  • @kaylatuttle9988

    @kaylatuttle9988

    3 жыл бұрын

    what all have you had to do to to the engine, tranny, and truck get those miles? I've got an 06 5.9 with only 143,000 miles. When will I need to replace serious parts before it's not worth keeping the truck?

  • @marklaumond5241

    @marklaumond5241

    3 жыл бұрын

    @@kaylatuttle9988 transmission at about 220000 the rear end at 190000 the driveline is original the engine has never had the head or pan off I replaced the injectors at about 300000 and the water pump even though there was nothing wrong with them 1 alternator 1 fan hub

  • @chi_stuntsxxx4413
    @chi_stuntsxxx44132 жыл бұрын

    Have had 3 3rd gen rams with 5.9s and 48REs. Great trucks. 1st one was all stock and beautiful. No complaints. 2nd one was 300k miles and I built it to the T and it made 749whp with room to go (didn’t want to blow up my 300k mile block) also took lots of trans work and the front end was poop. 3rd one just had a smarty touch, Intake, exhaust and mild trans build, good truck. I now have a 2021 6.7 and it absolutely destroys the 5.9s in power department. 6.7 deleted is 100% superior in my mind

  • @nonsequitor807
    @nonsequitor8074 жыл бұрын

    Where does the 24v fit in your study?

  • @willyd4850
    @willyd48505 жыл бұрын

    The 12 valve wins....

  • @generalpattton
    @generalpattton5 жыл бұрын

    The info is great, but those trucks look about as dumb as a 250 pound 6ft5 man in skinny jeans...trucks with lil tiny wide tires LMAO! A mans truck needs mans tires urah!

  • @_Ranger01_

    @_Ranger01_

    5 жыл бұрын

    assassinlexx why’s it matter what people do with THEIR trucks?

  • @fordf-2505

    @fordf-2505

    5 жыл бұрын

    @@_Ranger01_ because trucks are meant to be used for work. And because it makes those who actually have experience offroading look retarded.

  • @b.7401

    @b.7401

    5 жыл бұрын

    @@_Ranger01_ because people are jealous and/or have to have something to hate on. I don't get it either bud. The way I look at it, everyone is different. If everyone had the same mf style truck it would be pretty boring if you ask me. I like all the different style modded trucks.

  • @tyrenner

    @tyrenner

    5 жыл бұрын

    I still run 18s on my megacab lol they are 325/75/18s but i use mine for real work and real towing

  • @generalpattton

    @generalpattton

    5 жыл бұрын

    @Dobbies Revenge calm down sugar cakes...lolol. all guys are saying is it looks really funny to lift up a truck - then put tires on it ud normally see on a lowered oldsmobile in the hood. Most guys lift a truck for off roading, but yes they can do what they want with their truck n enjoy it lol. Gives the rest of us truck guys something to laugh about =))

  • @telahunbelachew6313
    @telahunbelachew63132 жыл бұрын

    If you have to drive back roads plus highways for 50k miles off-roading which engine is preferable?

  • @Justthemow
    @Justthemow3 жыл бұрын

    They are the exact same engine one just has a longer stroke because it has a bigger cam so is one of the same thing better then it’s self ?

  • @1966cambo
    @1966cambo4 жыл бұрын

    I vote for my 98 12 valve with a swapped in 6 speed manual,reliable, makes decent power ( not much done besides fuel plate) and gets great fuel economy Oh an I almost forgot P pump baby!!!

  • @philipgates988

    @philipgates988

    4 жыл бұрын

    1966cambo Yep, that’s the best combination ever in the dodge. I’ve got a 2001 with the six speed, almost rebuilt it to a p-pump 24 valve, but thought why not just get a 12 valve.

  • @failingdisciple938
    @failingdisciple9385 жыл бұрын

    How is EGR an advancement?

  • @linger2001

    @linger2001

    5 жыл бұрын

    It’s not. It is only an advancement from a cleaner air standpoint

  • @chevyboyforlife4234
    @chevyboyforlife42342 жыл бұрын

    It's a great thing about a non-inspection state you can do whatever you want to your vehicles

  • @DragnBarZ
    @DragnBarZ Жыл бұрын

    My dad had a brand new 05 5.9 for pulling a toy hauler to the dirt bike races when i was in high school. When i got my liscence in 2008 it became the truck i got to drive around. To this day it is my favorite vehicle, I’m looking at buying another one now. I currently have a GMC sierra that needs something new fixed one thing after another.

  • @6bt_str864
    @6bt_str8645 жыл бұрын

    @ 1:00 "omitting the 12v 🤔 I've heard enough. I'm out.

  • @Dustrunnersauto

    @Dustrunnersauto

    5 жыл бұрын

    6BT_ Str86 kbye

  • @marklaumond5241

    @marklaumond5241

    5 жыл бұрын

    Yah forget about the engine that put Cummings on the map for pickup truck moters. I own a 12 valve and wouldn't trade it for one of those newer pieces os

  • @Fenrirsleash
    @Fenrirsleash5 жыл бұрын

    Deleted 6.7 is reliable and superior. I'm talking stock tunes vs stock tunes. Crazy tunes can cause crazy problems lol

  • @brandonshattuck3737

    @brandonshattuck3737

    5 жыл бұрын

    Coyote2Cummins still the vgts are shit one a week on a school bus we see come in

  • @Fenrirsleash

    @Fenrirsleash

    5 жыл бұрын

    @@brandonshattuck3737 they getting stuck with soot? Our vgts on our fire trucks do good but we use the exhaust brake all the time. My 6.7 hasn't had any issues yet knock on wood haha. I use the exhaust brake frequently as well to try to keep everything freed up

  • @mikeelang7329
    @mikeelang73292 жыл бұрын

    I have a 5.9 12 valve 398000 miles pulling fairly strong yet and a 6.7 203000 pulling strong yet both start without hesitation in the cold Wisconsin winters. I love them both for there abilities and reliability. The best of both worlds.

  • @specforged5651
    @specforged56515 жыл бұрын

    The he351cw actually is variable geometry. The solenoid on the side activates and moves a gear which moves the vanes.

  • @xraykadiddlehopper8067
    @xraykadiddlehopper80675 жыл бұрын

    Ooooh. Shiny🙄 why have 4wd if you dont want to get it dirty? And it looks so stupid when you see these mirrors in the towing position all the time. I use my truck for what it’s made for. WORKING and TOWING.

  • @jaredgreenhut3436
    @jaredgreenhut34363 жыл бұрын

    I love my 5.9, it’s a beautiful motor. Does everything I ask of it. Maybe when I trade her in I’ll think about the 6.7 but honestly I plan on finding my same truck just with less miles.

  • @duanehenicke6602

    @duanehenicke6602

    2 жыл бұрын

    Good luck

  • @jeremysmith7450
    @jeremysmith74505 жыл бұрын

    I have a modified 6.7 and two stock 12 valves. I have not drove a truck that makes more power then my 6.7, but it was very expensive to buy and build. Both 12 valve trucks are very reliable other then transmission issues. I don't think you could build a 5.9 to a 6.7 potental, but the 5.9 is a very reliable engine, especially the 12 valve. The second gen 24 valve VP44 5.9 engines make good power but suffer fuel pump issues (they can be fixed though). The third gen 5.9 common rail engines make good power, they are reliable, and they can be built to make awsome power. They can give a 6.7 a really good run for its money, but when comparing apples to apples the 6.7 will out pull the 5.9.

  • @amolinari9

    @amolinari9

    5 жыл бұрын

    Jeremy Smith what if you just want a daily driver and towing a max of 14,000 lbs a few times a year and go off-road a few times a month? Please tell me 12v 5.9 lol

  • @tonyandrade7859
    @tonyandrade78594 жыл бұрын

    I'm trying to get a 2012 RAM 3500 SLT Cummins Diesel Engine6.7L 6 Cylinders , can anyone tell me if it is a good truck to get or not?

  • @firehawk6188

    @firehawk6188

    4 жыл бұрын

    No, they're terrible. Go with a Ford and their gas engine.

  • @tonyandrade7859

    @tonyandrade7859

    4 жыл бұрын

    @@firehawk6188 thank you

  • @luke-vs7bk
    @luke-vs7bk4 жыл бұрын

    02- 03-05 all 5.9 💪

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