Power: 250 - 320 hp  186 - 239 kW
Torque: 660 - 1000 lb-ft  895 - 1356 N•m
Certification: EPA 2018
Application: Medium-duty Truck, School Bus, Transit Bus
Overview:
The 2018 L9N continues the evolution of emissions-leading natural gas engines from Cummins Westport. Certified to the California Air Resources Board and Environmental Protection Agency's (EPA) Optional Low NOx emissions standard of 0.02 g/bhp-hr, it has 90% fewer NOx emissions than the current North American EPA standard. Offering 320 hp / 1,000 lb-ft torque, with improved performance and reliability, the near-zero emissions L9N is a great fit for transit, refuse, and truck applications.
Cost Effective Emission Reduction
Reduces smog forming NOx emissions by 90% vs. EPA NOx Standard
Can operate with 100% CNG, LNG, or renewable natural gas (RNG)
Significant GHG reductions with the use of RNG. Learn more with Cummins Westport GHG Emissions Calculator.
Natural gas is the lowest carbon fuel available, with abundant domestic supply and stable pricing
Fueling infrastructure in place and growing
No infrastructure changes are required for current natural gas fleets
Features:
Builds on all the latest improvements of the ISL G engine, with improved reliability and durability
New electronic engine, ignition, and On-Board Diagnostics (OBD) emission control features.
New engine control module – ECM model number CM2380.
Closed Crankcase Ventilation system for more complete combustion and lower emissions.
Specification: