Ahead of a new Ram Heavy Duty that will debut sometime next year (check out the spy shots below), Chrysler and Cummins are celebrating a milestone in a 24-year partnership that has supplied the Ram pickup with diesel engines.

In its early years, the Cummins straight-six turbo diesel was rated at just 160 horsepower and 400 pound-feet of torque, and its clattering 12 valves could be heard from a mile away. Its most recent configuration still uses a straight-six layout, but displacement grew to 6.7 liters in 2007 allowing the engine to now produce up to 385 hp and a whopping 850 lb-ft of torque. While a rumored smaller Cummins engine for use in the light-duty Ram 1500 never materialized, the work-ready 6.7-liter Cummins turbo diesel accounts for 80 percent of all Ram HD sales.

Chrysler has not yet announced when and where this two-millionth engine will be on display, but you can read more about the engine and the partnership in the press release below.
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Milestone engine destined for display
Ram-Cummins partnership spans four decades
Capability of current High-Output Cummins engine more than double that of
original offering

December 10, 2012 , Auburn Hills, Mich. - Cummins Inc. has produced its 2-millionth diesel engine for Ram Trucks, highlighting the latest milestone in a storied partnership that spans four decades.

The 350-horsepower, 6.7-liter, in-line 6-cylinder turbo diesel is distinguished by its "Cummins Red" rocker cover and breather. But despite its 800 lb.-ft. peak torque rating, the historic engine – feted today at a Cummins plant in Columbus, Ind. – will not see service. Instead, it will go on display, touring the U.S.

"The Ram Truck-Cummins diesel partnership is one of the industry's most enduring and certainly fitting of such a tribute," says Fred Diaz, President and CEO – Ram Truck Brand and Chrysler de Mexico. "Both companies have benefited greatly, but Ram diesel customers are the real beneficiaries. Every day they experience the toughness and capability a Cummins-powered Ram can deliver."

Cummins began supplying engines to Chrysler Group in 1988. Today in North America, only Ram-brand pickups and chassis cabs feature the coveted Cummins "C" logo.

"I am immensely proud of our association with Cummins," says Bob Lee, Chrysler Group Vice President and Head of Engine and Electrified Propulsion Engineering. "And I have no qualms matching our truck diesels against those of any competitor for performance and durability."

For 2013, Cummins-powered Rams boast capabilities and features that include:

=Best-in-class torque and a 10 percent fuel-economy improvement
=Exclusive dual-inlet "Ram Active Air" that adjusts induction according to driving conditions for optimal performance
="Smart" exhaust brake for smoother driving characteristics
=Best-in-class 15,000-mile oil-change interval
=A new cooling system for improved performance and durability
=B20 fuel capability
=Next-generation Selective Catalytic Reduction (SCR) and diesel exhaust fluid system with range of up to 4,000 miles between refills
=Dual fuel filtration system for enhanced reliability and durability in virtually every climate and environment
=Unsurpassed powertrain warranty – 5 years/100,000 miles

The Chrysler Group-Cummins partnership traces its beginnings to 1985, when development work began on a 5.9-liter 12-valve in-line 6-cylinder turbo diesel. When it launched in 1989, it was rated at 160 horsepower and 400 lb.-ft. of peak torque – less than half the numbers for today's High-Output 6.7-liter Cummins turbo diesel.

In the 2013 Ram Heavy Duty pickups, the top-line Cummins engine makes 385 horsepower and a best-in-class 850 lb. ft. of torque.

Among other notable events in the evolution of Cummins diesels produced for Chrysler Group:

-24-valve design introduced in model-year 1998.5
-Adoption of high-pressure common-rail fuel delivery in 2003
-Named to Ward's 10 Best Engines list in 2004
-Displacement increased to 6.7 liters from 5.9 liters in model-year 2007.5
-Met 2010 EPA emissions certification in 2007

Take-rate is testament to the appeal of Cummins engines among Ram customers. Diesels account for nearly 80 percent of Ram Heavy Duty sales.

About Ram Truck Brand
The Ram Truck brand continues to establish its own identity and clearly define its customer since its launch as a standalone vehicle brand. Creating a distinct brand for Ram trucks has allowed the brand to concentrate on how core customers use their trucks and what new features they'd like to see. Whether focusing on a family that uses its half-ton truck day in and day out, a hard-working Ram Heavy Duty owner or a business that depends on its commercial vehicles every day, Ram has the truck market covered.

The Ram Truck brand has the most innovative lineup of full-size trucks on the market. Ram Truck has emerged as a full-size truck leader by investing substantially in new products, infusing them with great looks, refined interiors, durable engines and features that further enhance their capabilities. Truck customers, from half-ton to commercial, have a demanding range of needs and require their vehicles to provide high levels of capability. Ram trucks are designed to deliver a total package.

Chrysler Group LLC Corporate Overview
Chrysler Group LLC, formed in 2009 to establish a global strategic alliance with Fiat S.p.A., produces Chrysler, Jeep, Dodge, Ram, Mopar, SRT and Fiat vehicles and products. With the resources, technology and worldwide distribution network required to compete on a global scale, the alliance builds on Chrysler Group's culture of innovation, first established by Walter P. Chrysler in 1925, and Fiat's complementary technology that dates back to its founding in 1899.

Headquartered in Auburn Hills, Mich., Chrysler Group's product lineup features some of the world's most recognizable vehicles, including the Chrysler 300 and Town & Country, Jeep Wrangler, all-new Dodge Dart, Ram 1500, Jeep Grand Cherokee SRT8 and Fiat 500. Fiat contributes world-class technology, platforms and powertrains for small- and medium-size cars, allowing Chrysler Group to offer an expanded product line including environmentally friendly vehicles.

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    • 1 Second Ago
      • 2 Years Ago
      Good on Cummins! I have one in my work truck, and it's an incredible engine. Just to give non-diesel heads an idea what they are capable of, I have conpound turbos, minor CP3 work, 45% injectors, EFILive tuning, head studs. It makes just under 60 psi of boost and 630rwhp/1180rwtq with nothing done to it structurally besides studs. No obnoxious smoke thanks to the twins and it returns over 20mpg highway.
        • 2 Years Ago
        60psi of boost!!!! Wow that sounds insane! How does the piston/rod handle that much boost?
          • 2 Years Ago
          Factory is wastegated to 32psi, and mine is mild compares to many! If you o-ring the heads and block it will handle 100 psi on the stock bottom end and more. Think of it as a 2JZ Toyota for trucks, the hard part is paying for a billet trans that won't grenade behind it.
          • 2 Years Ago
          Because the 5.9 was originally built as an industrial engine, it is grossly overbuilt in comparison to most automotive engines, including the Powerstroke and Duramax. Not to say either of those can't handle power, but if you search for a picture of a 5.9 connecting rod, you'll be surprised at just how much bigger it is.
      • 2 Years Ago
      With Fiat owning half of VM Motori and already using their engines internationally and soon here (Grand Cherokee), how will it effect the future relationship between Cummins and Dodge? Moreover, will Cummins develop a smaller (4-cylinder) engine for passenger vehicles?
        • 2 Years Ago
        Always thought Cummins made some pretty solid engines. I've also always thought that a large number of folks that bought a RAM did so solely because of the Cummins offering. Beyond that, Caleb Johnson's comment of RAM's being "decent engines wrapped in piles of junk" generally sums up what I've traditionally come to know about Dodge (err, RAM) trucks. The point is, if you're buying anything that I'm selling from above, then your first question is essentially a non-starter. While a FIAT sourced unit may translate to a production cost savings, sales would ultimately tank as you've taken away the one major selling point that got Customers to choose RAM in the first place. So no, I don't see that relationship ending any time soon. As for your second question, I'm not sure the incentive is there for them to pursue it. Small fuel-efficient engines aren't necessarily a core competence of theirs.
      • 2 Years Ago
      • 2 Years Ago
      • 2 Years Ago
      Caleb Johnson
      • 2 Years Ago
      I'm not a big fan of cummins, but they are descent engines. Just wrapped in a pile of junk. Powerjokes are the worst. 8 2012 powerjokes in our company. 4 bent the valves under 30,000 and 1 swallowed a turbo. Complete junk. Duramax IMO is the way to go. Plus Duramax is the only mass produced engine to get a complete hot test before it sees a crate.
        • 2 Years Ago
        @Caleb Johnson
        Nearly all problems related to diesels that have come out in the last few years are due to emissions related parts destroying the engine.
      • 2 Years Ago
      I love the motor, and the looks of the Dodge. Problem.....here in upstate New York any Dodge will have holes in it from roadsalt in under 5 years. They just rot to fast for me.
        • 2 Years Ago
      • 2 Years Ago
      I remember test driving a Cummins diesel Ram way back around 1998 or so. Pulled the thing up to a curb, let the front tires rest against the curb, and slowly let the clutch out at idle. The rear tires starting squealing. The thing just sat there burning rubber at idle, held in place by the curb. I still remember the look on the other guy's face. Good times. Hurray for torque!
      • 2 Years Ago
      I've got one of those old 12V Cummins and there's nothing like the clatter. No mistaking what it is. 160HP and 420 lb-ft of torque means I can tow just about anything, anywhere....at 30mph lol. I've thought about a #8 TST power kit which would bump it up to 230 HP and 605 lb-ft of torque, but I wonder how bad a fuel mileage hit I'd take...
        • 2 Years Ago
        My dad has an '82 GMC with a 5.9 swapped into it. As a friend of ours put it, it's not a particularly fast truck (at 140 hp, it uses an agriculture engine), but it doesn't slow down when you put a trailer on it. Torque: a trucks best friend.
      • 2 Years Ago
      ...and I thought 'noise equals power' was bad with the Honda's in the 1990s.
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