Is This the Cummins Light-Duty V-8 Diesel Engine?

Is This The Cummins Light-Duty V-8 Diesel Engine?

In the land of zombie powertrains, where light-duty diesels exist in a purgatory between production and the bone yard, we've already been shown or spied half-ton oil burners that were promised and then shelved by Ford and GM. Meanwhile, the long-anticipated Cummins clean diesel for the Dodge Ram 1500 has remained hidden from view. Now, we may have unearthed our first look at what we expect will be an all-new 5.0-liter V-8.

A picture of a V-8 diesel engine that we've never seen before appeared in a recent presentation given by Cummins to the U.S. Department of Energy. The diesel-engine manufacturer is developing several new combustion and emissions-control technologies under its Light Duty Efficient Clean Combustion program for light-duty diesel engines. LDECC is partially funded by the DOE.

A slide with the V-8 says the "V8 engine will be the first opportunity for commercialization of LDECC technologies with North American OEMs."

Cummins has already said it's working with Chrysler and Nissan North America to supply the new engine for use in pickups and light commercial vehicles for the U.S. and Canadian markets, though the company has been coy about the engine's final architecture and displacement.

Slide from DOE presentation with V-8 diesel picture

We asked Cummins if this is the engine slated for the half-ton Ram.

"The V-8 engine depicted in the presentation is not meant to represent any particular Cummins product," Mark Land, executive director of public relations at Cummins, told "It's to make the point that the technologies we currently are working on with the DOE would be scalable across all our light-duty products. We have worked with the DOE on V-8 programs for a decade or more. I can't confirm that the V-8 shown in the presentation is the one we will be making in Columbus, Ind., for Chrysler and Nissan. We have not discussed the specifics of that engine publicly."

What has been discussed recently about the new light-duty diesel is what's said to be a temporary pause in its delivery to Chrysler while Chrysler and Cummins rework the engine's manufacturing agreement as Chrysler continues to reorganize after emerging from Chapter 11 bankruptcy.

In January, Chrysler told that the ultra-clean diesel engine had been postponed until 2011 or later.

Close-up of Cummins V-8 diesel computer rendering


Hey Mike Levine, Any idea what the HP and Torque would be on this 5.0 Cummins? One more thing Mike why don't they make a 4 valve on the 5.7 Hemi and put a 6 Speed transmission, that would be awesome and lower RPM and better fuel mileage.... Thanks, Randy

b/c the hemi is a pushrod engine..way too high of cost to overcome that engineering feat

DOHC over pushrod 2 valve, on the same engine doesn't mean better fuel mileage. I know people have the thought that it does. But look at the small Japanese and Euro V8s that are around the 4.2-4.3L range. They still lack the torque of a larger engine, They require premium fuel, and they use the same or more fuel than engines like the 5.3 GM V8, 5.7 LS1 or even the Hemi. The reason? It takes energy just to move two camshafts and operate 4 valves per cylinder. Where does that energy come from? Fuel! You can get more power from DOHC, because it lets in more air and more fuel. But it doesn't do it more efficiently. There are better ways of getting more power and torque more efficiently. Like direct injection.

Who cares they aint gonna sell it , it seems that the only company with the balls to innovate is Mahindra and they are from India , looks like it may be time to invest in Indian and Chinese and Korean vehicle manufacturers .

The Cummins 6.7, Duramax 6.6 and Powerstroke 6.4 are all 4 valve pushrod. Not a big engineering feat at all.

I've owned a Dodge 1 ton since 1992. They are great trucks, and I can fill the tank with vegetable oil and cut the emisions by over 50%. These are 300k miles engines. Every year they've gotten better. Europe is over 60% diesel, even their string weed eaters are diesel. It's time for this country to become aware of what we can be doing today (not tomorrow) towards energy and a bigger step towards non-polution than our gas burners. PLEASE BRING ON THE DIESELS>

Give it up, that engine is not going to happen. It's only chance is Nissan's proposed commercial trucks.

Since Dodge and Cummings are having a rocky relationship who says that they are going to give this motor to Dodge? I would say that you go to the highest bidder and sell it in a GM, Ford or Toyota if there contracts are messed up from the whole bankrutcy thing with Dodge. I know that most people only drive a Dodge because of the motor, there wouldn't be any other logical reason to do so.

In the past, I wished for a 1/2 ton diesel mostly for better fuel mileage and the bonus of more low-end grunt. I saw the estimated specs for this V8 Cummins and it is retarded. Horsepower figures comparable to the big block V8s and torque around what the 24V Cummins I6 started out with and only 10-15% better fuel economy most likely do to all the emissions BS and desire to one up the other brands... this isn't what people want in a HALF TON pickup. The idiots are targeting that motor to the 5/8 ton crowd (people who really should buy a 3/4 ton but get a 1/2 ton instead). You can bet your ass they'll charge a huge premium for it too. The price of diesel is already 10-15% more than gas/gal so it is going to cost way more in the long run to brag about that C badge on the side of your pickup. It's like the cost Dodge is charging for a Dakota these days. 2-3K cheaper than a Ram??? Other than it being a tad narrower and shorter, MPG is the same, I see no reason other than your garage restrictions to get one anymore.

Bring on the direct-injected turbocharged gasoline engines.

Light duty diesels are so "last year".
They cost too much and are not that efficient.

Diesels are going through the same emmision issues that gas engines went through in the eighties.

There is a huge market for a 1/2 ton diesel. When will Detroit listen? Trucks and SUVs are the money makers for them. You would think they would be working diligently to improve the MPG of these vehicles. But instead we get more HP in trucks, and more small cars to choose from.

I personally don't need a 400hp 1/2 ton. I want one, multipurpose vehicle that gets the job done. I need a 1/2 ton truck that gets 25 mpg unloaded, but can tow 4-7k lbs at interstate speeds. (and not get 7mpg towing)

Here is the problem. The guys that want the 1/2 ton diesel so bad are stuck in the pre- particulate filter diesel mind era. Yes pre 2008 models a 1/2 ton diesel would rock. Now with the emmisions equipment ruining mpg it doesn't serve a purpose. OK you say... my buddy removed his exhaust system on his new duramx or 6.4L and now gets 20mpg and has an extra 100+ hp.... Fine thats true, but those units did not have the next stage on emmisions cr@p being urea tanks/sprayers etc... So eventually someone will develop a bypass/fix for that too, but how long and at what cost.

So now lets say they make em and I buy a Gm/Ford 1/2 ton diesel in 2010. I pay an extra $4,000 for this option. Then the mpg suks. So I wait 18 months and some dude then is finally able to offer me a fix. He charges me $2,500. Now its doing 20mpg and I have a truck that cost me how much more than non diesel 1/2 ton. Well $6,500 buy an awfull lot of gasoline my friend. The manfactures know this and thats why they won't build em.
The end.

Did you forget resale or reliability? I have both gas and diesel trucks at the moment, and the diesel has depreciated very little. On the gas truck I've only put 50k miles and its worth less than half what I paid new. My 8800lb Megacab with Cummins gets better mileage and can outrun my little gasser.

Regular unleaded gas is 15% more than diesel where I live as well.

If there was a diesel Ram available from Dodge I'd buy it in a heartbeat. I could pick up a Smarty programmer, cut off the emissions crap and have a 25 or 30mpg truck on the highway that holds its value and can outrun sportscars if I want. Alas, that's not going happen in the short term so I'll be trading up to the 2010 HD Ram.

a) Your cummins has the old pre urea diesel does it not?
b) How many miles would you have to drive, and how many years would you have to keep it to hit the magic mark where the extra thousands of dollars in up front expense pays for it self. Its a lot. Far more than 90% of guys will keep their trucks.

The newest diesels with the emmisions equipment are not as valued in the used market as the older units. Is their resale better than an equivilant gas model... YES, is it what it used to be.... no not right now.

Why keep whining about the lack of diesel engined 1/2 ton pickups? They are too costly to make and right now most people won't buy them. Most people are staying away from the heavy duty diesel pickups. the new emission standards have killed the advantage diesels had over gas engines.

I agree with Lou on this one, the light duty diesel market would be very expensive to produce. The only way it would work is that the fuel economy would have to be EXTREMELY good and runnability not affected by urea. I mean 30-35 mpg at least and not go into engine derate when the stupid thing runs out of urea.

To the guy sayin wen will Detroit listen its called Detroit muscle for a reason buddy. Means big hp and big torque there just livin up to there name. I personally think that having a v8 Cummins is awesome in it self and having a 1/2 ton diesel is cool just gives pple more ch

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