
L9N (2018)
Power
250 - 320 hp
Torque
660 - 1000 lb-ft
Certification
EPA 2018
Applications
PRODUCT Detail
Overview
Specifications
Features
Brochures
The 2018 L9N continues the evolution of emissions-leading natural gas engines from Cummins. 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.
- 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
Nox emission | 0.02 g/bhp-hr. (90% below EPA) |
Maximum Horsepower | 320 HP (239 kW) |
Peak Torque | 1,000 LB FT (1,356 Nm) |
Governed Speed | 2200 RPM |
Type | 4-cycle, spark-ignited, in-line 6 cylinder, turbocharged, CAC |
Engine Displacement | 540 CU IN (8.9 Liters) |
Number of Cylinders | 6 |
Operating Cycles | 4 |
Net Weight (dry) | 1,625 LB (737 KG) |
Fuel Type | CNG/LNG/Biomethane |
Aftertreatment | Three-Way Catalyst |
Base Warranty | 2 Years, 250,000 Miles (402,336 KM) Truck 2 Years, Unlimited Miles Transit/Shuttle |
- 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.

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