Cummins Inc. and Cummins Westport Inc. announces the ISX12N+Endurant HD N powertrain is a fully integrated natural gas powertrain which is now available for heavy-duty customers.
- Combines ISX12N near zero natural gas engine and Endurant HD N 12-speed automated transmission
- Well suited for heavy-duty regional haul fleets looking to lower emissions
- Available with a rating of 400 hp (298.3 kW) and 1,450 lb.-ft. (1,965.9 Nm) torque
- Can operate with 100% compressed natural gas (CNG), liquid natural gas (LNG) or renewable natural gas (RNG)
- Rreduces smog-forming NOx emissions by 90% compared to current Environmental Protection Agency (EPA) standard
- System is credited with a neutral to negative carbon index, resulting in net greenhouse gas (GHG) emissions at or below zero when operated using RNG
- Endurant HD N automated transmission was optimized for integration with the ISX12N natural gas engine and features new software functionality and calibrations
- New diaphragm spring clutch on Endurant HD N transmission meets load requirements of the engine while protecting it for optimal performance
- Integration between the engine and transmission results in improved launch performance, improved low-speed maneuverability and smoother shifts compared to previous natural gas engines and automated manual transmission combinations
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