Cummins Inc. will retire its L9 and X12 legacy engines, replacing them with a new X10 engine capable of powering medium- and heavy-duty trucks on a variety of fuels.
The move is consistent with Cummins’ plan to offer its X15 engine family powered by natural gas, hydrogen, propane and possibly other combustible fuels as an interim solution along with zero-emission battery- and fuel cell-electric powertrains.
The fuel-agnostic engine platforms feature a series of engine versions derived from a common base engine. Below the head gasket, each engine has similar components. Components above the head gasket contain components for different fuel types. Each engine runs on one fuel.
New Cummins engine slots between medium- and heavy-duty applications
The 10-liter displacement product slots between the B6.7 for vocational, transit, pickup and delivery and regional haul customers and the X15 focused on long-haul trucking. The X10 will start as a diesel engine and add other gaseous fuels, including B20 and renewable diesel.
Cummins plans to offer the X15N powered by natural gas in 2024 and the X15H with hydrogen combustion in 2027.
“We are committed to advancing diesel technology while our markets and our customers need it to run their businesses,” José Samperio, Cummins executive director of the North America On-Highway business, said in a news release.
New engine emits 75% fewer NOx emissions
The new X10 diesel will emit 75% less nitrogen oxide emissions than current engines and comply with the U.S. Environmental Protection Agency 2027 regulations. The X10 architecture uses a belt-driven, high-output 48-volt alternator. An aftertreatment heater is scalable to other advanced combustion technologies such as cylinder deactivation.
Cummins acquired Jacobs Automotive Systems, a maker of cylinder deactivation technology, in 2022. It also partnered with startup Tula Technology to test diesel Dynamic Skip Fire technology that reduced NOx emissions by 74% in the X15 engine.
“It will be scalable to other advanced combustion technologies, but it’s too early to say which may be implemented,” spokesperson Katie Zarich told FreightWaves.
The engine can be paired with several transmissions, including the Eaton Cummins Endurant for better drivability and efficiency from idle to full power. The X10 has longer maintenance intervals, reducing visits to the shop. Over-the-air calibration, predictive service recommendations and other features come through Cummins’ Acumen digital connectivity.
The new engine will first be available in Europe and North America. Other regions will get it later and an off-highway version is part of the long-term plan.
Related articles:
Cummins previews coming attractions as emissions regulations converge
Werner signs for 500 Cummins’ hydrogen-powered internal combustion engines
Cummins reworking its engine families to run on multiple low-carbon fuels
Douglas Deach
all of this just mean more down time. Junk
Douglas
Cummins should help
Douglas Austin
2200 hours on a versatile and broken valves. How much now
Zack
Just more junk on top of junk for no reason other than a bunch of politicians and an epa that has no power to force anyone to do anything. Cummins is teaming up with the government plain and simple and hopefully this mistake will eventually cause them to go broke or reverse actions like countries that aren’t being ran by communist
Clyde L Elliott
Whats the weight of the x-10 engine and price would be interested if feasible to install into an older truck ?
Swapnil Shinde
Ur service is 3rd class high cost u only making money ur thif
Armyof 1
Cummings always did make great engines, but when they started putting all the pollution junk on there their engines lost good mileage on fuel, I wish I hand a Cummings engine in my 1997 Dodge Ram 1500 4×4 it has the 5.2 318 gas, and it’s like a little boy trying to do a man’s job, I have no power, and it only gets 9 miles to a gallon, That was a big mistake putting the small engine in that truck, It was a great engine for the Plymouth Satellite,
Larry Pretlow
It’s just more stuff to break down and you don’t have the mechanics to fix the problem of these new engines !!!