Cummins unveils new B7.2 and X10 diesel engines
Cummins' newest addition to the 40-year-old B-series engine platform, the B7.2, was unveiled at NTEA Work Truck Week on March 5, and promises to deliver a future-ready global platform that doesn't fall short on performance or durability.
The engine OEM also displayed the X10, a mid-bore heavy-duty engine that replaces both the L9 and X12 engine platforms.
B7.2 diesel engine
Cummins B7.2 diesel engine is the next engine in the company's HELM platform following the B6.7 Octane engine, and is built to serve a variety of medium-duty and vocational applications, including bus, pickup and delivery, utility trucks, towing, and more.
Here are the key specs of the B7.2:
- Power: 240-340 hp
- Peak torque: 650-1,000 lb.-ft.
- Displacement: 7.2L
- Truck class: medium-duty
- Vehicle applications: pickup and delivery, utility, refuse, towing, bus
- Production: 2027
The new engine will also offer a compression release engine brake and extended oil drain interval pan option, and will be automatic engine shutdown and stop-start capable for improved greenhouse gas emissions.
The B7.2 will go into full production in North America starting in 2027 at Rocky Mount Engine Plant in North Carolina.
“Our B engine is a legend known around the world. We are proud to unveil the newest version, the B7.2 diesel engine, right here in our backyard,” said Brett Merritt, vice president and president, engine business. “The B7.2 brings the latest technology and advancements to one of our most proven platforms. Combined with the rest of our medium-duty lineup, our customers will have the right engine choices to fit their business needs, with the power and dependability they have come to expect from Cummins.”
Equipped with the full suite of Cummins' digital technologies, the B7.2 will help fleets maximize uptime and performance through access to a host of applications. The engine is also compatible with is also Cummins Maintenance Monitor capable, reducing trips to the shop and minimizing total cost of operation.
“Our customers have used the B-Series engine for more than 40 years and rely on it every day to meet their needs,” said Jose Samperio, VP, North America on-highway. “It was important that we offer the reliability and performance that they have come to expect, while also creating an engine that is built to last for the future.”
X10 engine
Also recently introduced is Cummins' X10 engine as another addition to the HELM platform, meaning customers are able to select the fuel that best suits their needs.
According to the company, the engine's power-to-weight ratio is class-leading, allowing for enhanced productivity without weighing down vehicles.
Here are the key specs:
Fuel: Agnostic
Power: 320-450 hp
Peak torque: 1,000-1,650 lb.-ft.
Displacement: 10L
Vehicle applications: construction, vocational, transit
Certification: EPA
"The X10 brings robust capabilities, exceptional durability, and unmatched versatility to customers looking for heavy-duty performance in a more compact, efficient package," said Jose Samperio, VP, North American on-highway engine business.
Cummins plans to launch the X10 in 2027.
About the Author
Lucas Roberto
Lucas Roberto is an Associate Editor for Fleet Maintenance magazine. He has written and produced multimedia content over the past few years and is a newcomer to the commercial vehicle industry. He holds a bachelor's in media production and a master's in communication from High Point University in North Carolina.