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new 4.2 liter Cummins diesel coming to the Jeep line!!!

32K views 59 replies 35 participants last post by  fourplyn 
#1 ·
...An early news release said it sports a 4.2-liter V6 diesel engine. The wheelstand sign says 4.2-liter diesel engine. We've heard Cummins say they're building a 4.2-liter diesel for light-duty DaimlerChyrsler applications....

source

Cummins announced in October that DaimlerChrysler would be the major customer for its new family of light-duty, clean diesel engines, which it plans to have rolling out of its Columbus, Indiana, engine plant no later than 2009. The new engines will have strong, light Compacted Graphite Iron (CGI) blocks, and are designed to power vehicles below 8500 lb gross-vehicle weight.

Neither DaimlerChrysler nor Cummins would comment on the configuration of the new family. However, they will use some of the technology developed during a nine-year partnership between Cummins and the Department of Energy to produce two new fuel-efficient diesel engines.

This program produced a 4.2L V6 and a 5.6 L V8 for 2009 that are capable of meeting EPA Tier II and CARB LEV II emissions standards. Dodge Trucks provided vehicle and installation-design assistance for the project, so the V8 was tested in a Ram. It developed 325 hp and 500 lbs-ft while returning 22.1mpg. The V6 had a Durango for its testbed and delivered 270 hp and 420 lb-ft with 22.1 mpg...
source

:cheers2: :2thumbsup: :cheers2:
 
#27 ·
I work at the Columbus, IN Cummins plant in CMM. I just had a buddy bid over to the new line. The engines are already being tested...if one fails, he tears it down to troubleshoot. Since one of the test vehicles was a Dodge Durango, amongst a few others such as a Ram-Sierra-F150, I would not be surprised if it landed itself in a Grand Cherokee. They've developed this wing of Plant one with, I believe, like $250+ million. I'm so happy to see more business here. It really sucked when the engine assembly line went to Jamestown, NY-not to mention being laid off for a couple months. Expected realease is early 2010. chao
 
#28 ·
yj old school said:
i work for a company that supplies most of the cummins emgine plants in the US. We are currently manufacturing water transfer tubes (heater tubes) for light duty diesels. We are already getting quotes for the expansion of the Columbus,IN plant for their diesel application for the Liberty in 2010. I wouldn't be surprised if they are on the markety in the next few years.
2010?! Sooner please! I just saw the 2008 Liberty this morning at my local dealer (looked really nice). If they had that with a diesel, I would trade in my currently Liberty today. :D
 
#30 ·
ok so if we got a jk with almost 400lb ft of torque are they going to keep the dana 44 in it? 400lb ft of torque with one idiot would tear the rear end to shreds. and with that new lifetime warrenty does anyone know if they do put the 4.2 diesel in it or w/e then are they gona upgrade the drivetrain????
 
#32 ·
joeksjeep said:
ok so if we got a jk with almost 400lb ft of torque are they going to keep the dana 44 in it? 400lb ft of torque with one idiot would tear the rear end to shreds. and with that new lifetime warrenty does anyone know if they do put the 4.2 diesel in it or w/e then are they gona upgrade the drivetrain????
Where did the400lb/ft number come from?
 
#33 · (Edited)
posted by pdxbubba...
The V6 had a Durango for its testbed and delivered 270 hp and 420 lb-ft with 22.1 mpg...

I think the D44 axles would be fine on stock 31's with a TD motor. If someone put really big tires on their Jeep, it might break. But if an axle breaks because someone modified their suspension and tires, the warranty doesn't cover it now anyway.
 
#35 ·
pdxbubba said:
...after picking my jaw up off the ground, I figured it was pointless to keep talking to this guy so I just kept looking and stopped asking him anything harder than color combos.
And that's surprising?? :p

I stopped at a dealer when I was thinking about buying a 4-door JK and the salesboy, who looked like he wasn't a day over 15, wasn't even sure how to get it into 4WD. But he knew I could get it in black!

But a 4-door, unlimited diesel, or better yet, a diesel Jeep truck, dually maybe....

now that would be interesting
 
#36 ·
StvDiego said:
And that's surprising?? :p

But a 4-door, unlimited diesel, or better yet, a diesel Jeep truck, dually maybe....

now that would be interesting
Yeah, with all the Cadillac and Lincoln trucks:rolleyes: on the road now, It would be nice to see a Dodge 1500 or Dakota with Jeep skin on it. I would buy one.
 
#38 ·
indianrefining said:
The 2.8 CRD being offered for export models is the same VM Motori engine which was available in the '05-'06 Liberty. It can't meet the '07 emissions standards in the States. That's why it's no longer in the Liberty.
Wrong. The Liberty diesel was cut for 2007 because they were not selling enough gasoline Liberties and they consumed too many emissions credits.
 
#42 ·
:laugh: WRONG! Our fuel economy is excellent. And if you can smell the tail pipe she's sweet. They went out of production because the I-Ties that build that Euro Bio Diesel don't do biz with the Big C no more. 70 mpg says your take on jsmorris affairs needs some Indian refining. My great GM was a Cree, if that's any help. :hahaha:
 
#40 · (Edited)
source

source

:cheers2: :2thumbsup: :cheers2:
We're doing 70 mpg with our Liberty CRD Bio. This is acceptable consumer energy policy. 22.1 mpg seems destined to rust in the dealer lot. Did they pull some out of old crates? You must have got your fuel consumption wrong, Bubba. We just keep seeing more and more imports hogging the road. Pretty soon the BMW parts are going to be 25 percent what we pay for Mopar. You can't be serious!:nono:
 
#43 ·
Yeah we are gearing up at Cummins for the launch of the LDD. They are building the new lines as we speak. I am at the fuel system plant that has nothing to do with the LDD but i want a diesel wrangler to be built in my lifetime.
 
#47 · (Edited)
If you mean a 3.0 L turbo-diesel V-6, then yes, it's been out a year or two. I am looking at an 07 GrandCherokee with the CRD engine. I think it gets 20 city, 25 hwy. But it has the power & torque of a V8 gas engine.

Plus my neighbor will only drive diesels because he makes his own BioDiesel for less than $1/gal. I've watched him do it. It's not difficult, but the process takes a little time. He's making fuel now that he can use in a few weeks. But his VW turbo diesel gets something like 45 mpg on the hwy so he won't need it until then, hehehe
 
#52 ·
A Diesel in the new Jeeps would be awesome preferible by Americans produced on American Soil, even if Mercedes gets the bid to put there Diesels in Jeeps, hope they build them here. What would be really awesome is if Chrysler or Cummins or Vm would capture the aftermarket and build affordible diesel engines for conversions.

But one could only dream. :[
 
#56 ·
The 4.2L diesel won't be coming to Jeep any time soon. If/when we do get diesels, they'll be VM Motori ones, because they're a more suitable option for European markets, and Jeep isn't going to offer two different diesels depending on markets without a good reason.

And 'Because Cummins' isn't a good reason, especially if you know about VM Motori diesels (Hint: They're awesome)

HOWEVER, take a look at Ram's latest announcement: The Tradesman 1500 HD. It's a Ram 1500 Tradesman with the frame and suspension from a 2500. Now start thinking of THAT with a 4.2L diesel. Yes, we may be looking at diesel-powered stripper Rams for under $30,000 next year.

EDIT: And Mike, Cummins makes tons of smaller engines. Most of them would already easily fit into cars and trucks of any size as well. It's just that they're only certified for industrial and off-highway use right now, and it's not worth certifying them for road vehicle use without a plan from a car company to do so. The 4.2L was originally developed for military use itself-it's only finding its way into regular trucks because Nissan and Chrysler are, presumably, coughing up the money for tooling and certification.
 
#57 ·
Emissions legality has been a driving reason why smaller diesels are not more prominent in this country. Cummins makes all sorts of small engines, but they've never been US road worthy, for one reason or another. The LDD is intended for vehicles with a GVWR of 8500# or less, which almost all small trucks and SUV's are in that class. I don't know squat about about the VM though. Would it still be as amazing with all the emissions crap packed onto it? With 2014 fast approaching, and the final tier of emissions requirements, it would be in a(ny) manufacturer's best interest to wait for an engine that's ready for those standards.

Edit: Chrysler pumping a lot of money toward Cummins to certify their smallest US legal deisel, which can fit in the same place as a V8... that sounds like a "b/c Cummins" thing to me. You think they would do that JUST for a single vehicle in mind, even if it is the RAM 1500.

Sent from my Droid Incredible using the JeepForum app.
 
#59 ·
I don't know squat about about the VM though. Would it still be as amazing with all the emissions crap packed onto it? With 2014 fast approaching, and the final tier of emissions requirements, it would be in a(ny) manufacturer's best interest to wait for an engine that's ready for those standards.

Edit: Chrysler pumping a lot of money toward Cummins to certify their smallest US legal deisel, which can fit in the same place as a V8... that sounds like a "b/c Cummins" thing to me. You think they would do that JUST for a single vehicle in mind, even if it is the RAM 1500.
The VM Motori is already 2014-legal. VM Motori is to Europe what Cummins is to North America, they're true industrial-strength engines. With all the emissions regulations in place and adjusted for NA EPA emissions cycles, the 3.0L diesel Grand Cherokee is good for about 30 MPG combined.

And for the record, I'm thinking whatever engine is on the euro version, will go in the US version. But only if it can be easily adapted for the tier 4 requirements.
The 4.2L came originally around for pff-highway and militay applications. However, Nissan came to Cummins and asked them to get it certified for the Titan. I suspect that, what with the Titan being a distant last place in full-size truck sales, and given Nissan and Chrysler's history of joint ventures (Remember the next-gen was going to be a Ram with new badges), either Cummins approached Chrysler or vice-versa, thinking that Nissan alone couldn't make a sufficient case to pay for the certification and refitting and brought Chrysler in as well.

This is all speculation so far, since we still don't know for sure that the Ram 1500 will be getting the diesel.
 
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