Cummins Introduces HELM Medium-Duty Engines with Multi-Fuel Flexibility
Cummins launched its HELM medium-duty engine platform with three models supporting diesel, gasoline, natural gas, and hydrogen, aiming for durability and lower emissions.
13 million
3 million miles
What Happened
Cummins HELM (Higher Efficiency, Lower Emissions, Multiple Fuels) platforms for medium-duty vehicles include the B6.7 Octane spark-ignited gasoline engine, the B7.2 diesel engine, and the X10 diesel engine. All share common architectures for easier maintenance and support a variety of fuel types, including advanced diesel, gasoline, natural gas, and hydrogen.
- Up to 300 hp / 660 lb-ft; gasoline; for school buses and light vocational trucks
- Up to 340 hp / 1,000 lb-ft; diesel; for school buses, vocational, and municipal vehicles
- Up to 380 hp / 1,250 lb-ft; diesel; for vocational, emergency, and transit bus applications
- Diesel platforms reduce NOx and CO₂ while improving fuel economy.
- Spark-ignited platforms offer clean-burning alternatives to traditional diesel.
- Multiple fuel options enable a smooth transition to low- or zero-carbon fuels.
Why this matters
The HELM platform simplifies engine integration and maintenance for fleets, offers fuel flexibility to meet tightening emissions regulations, and supports Cummins' Destination Zero strategy toward net-zero emissions.
Terms in This Story
- HELM
- Higher Efficiency, Lower Emissions, Multiple Fuels; Cummins' platform strategy for engine integration.
- Destination Zero
- Cummins' strategy to enable customers to reach net-zero emissions through practical technologies.
- Spark-ignited
- An engine type that uses a spark plug to ignite fuel, like a gasoline engine.
- Exhaust Gas Recirculation (EGR)
- A system that recirculates a portion of exhaust gases back into the engine to reduce NOx emissions.
Summarised from the linked release; details can be imperfect — always verify against the original source.