
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.

Download brochures
Register Cummins products to get up to date information on your repairs, products details
technical support and much more
similar products
COMMERCIALQD 11HDKBN-6000C
Power
Torque
Certification

X15N (2024)
Power
400 - 500 hp
Torque
1450 - 1850 lb-ft
Certification

Remanufactured Cummins Turbo Diesel
Power
325 - 385 hp
Torque
610 - 930 lb-ft
Certification

B6.7 Structural Engine
Power
155 - 326 hp
Torque
650 - 1014 lb-ft
Certification
EU Stage V, EPA Tier 4F

6.7L Cummins Turbo Diesel (2018) for Chassis Cab
Power
320 - 325 hp
Torque
650 - 750 lb-ft
Certification
EPA 2018

6.7L Cummins Turbo Diesel (2019) for Chassis Cab
Power
360 - hp
Torque
800 - lb-ft
Certification
EPA 2018

F4.5 Structural Engine
Power
130 - 160 hp
Torque
476 - 476 lb-ft
Certification
EU Stage V, EPA Tier 4F

X15 Performance Series (2017)
Power
485 - 565 hp
Torque
1650 - 2050 lb-ft
Certification
EPA 2017

X15 Performance Series for Heavy-Duty Truck (2017)
Power
485 - 565 hp
Torque
1650 - 2050 lb-ft
Certification
EPA 2017

X15 Performance Series for Fire & Emergency (2017)
Power
505 - 565 hp
Torque
1850 - 1850 lb-ft
Certification
EPA 2017

X15 Performance Series for TEMs & Body Builders
Power
485 - 565 hp
Torque
1650 - 2050 lb-ft
Certification
EPA 2017

L9 for Shuttle Bus (2017)
Power
260 - 380 hp
Torque
720 - 1250 lb-ft
Certification
EPA 2017

X15 For Motorhomes (2017)
Power
565 - 605 hp
Torque
1850 - 1950 lb-ft
Certification
EPA 2017

X15 (Stage V)
Power
450 - 675 hp
Torque
1600 - 2050 lb-ft
Certification
EU Stage V
