
L9 for Fire & Emergency Vehicles (2017)
Power
270 - 450 hp
Torque
800 - 1250 lb-ft
Certification
EPA 2017
Applications
PRODUCT Detail
Overview
Specifications
Features
Brochures
Redefining Performance
2017 L9 For Emergency Vehicles
Fire and emergency vehicles are all about performance, readiness and reliability. Those three factors are what continue to make Cummins L9 the leading choice for first responders across North America.
Designed For The Fire Service
- Better Pump Control – Customized design includes a fire pump governor interface
- No Derates – Regeneration or emissions-related faults do not affect power output when you need it.
- One Source for Service – Your local distributor supports both Cummins engines and Cummins Onan® generators.
Performance
- VGT® Turbocharger – Delivers faster engine warm-up, enhanced engine braking horsepower and improved throttle response
- Wide Range of HP Ratings – From 270 hp to 450 hp
- Best Power-to-Weight Ratio in Emergency Vehicles
Reliability
- Building on a legacy of over 5 million L Series engines built
- 30 years of continuous improvement, for total confidence
- Single Module™ Aftertreatment – Up to 30 percent less weight with up to 70 percent less space than previous designs; UL2 dosing system improves reliability and efficiency
NOTE: For all engines and options available, horsepower may be limited by the truck OEM
REPTO – Available – Torque limit of 435 lb-ft continuous, 520 lb-ft intermittently, gear drive ratio is 1.15:1, rotation is opposite of the crankshaft
FEPTO – Available – Torque limit up to 210 lb-ft
Idle Speed | 700-800 rpm | |
Engine Braking Horsepower | Up to 370 hp @ 2600 rpm | |
No Load Governed Speed | 2400 rpm | |
Number of Cylinders | 6 | |
Engine Weight (Dry) Engine Weight (Wet) | 1,695 lb 1,770 lb | 769 kg 803 kg |
Aftertreatment Weight | 132-179 lb | 60-81 kg |
Injection Pressure | 32,000 psi |
- Cummins on Every™ Corner – Over 3,500 authorized locations across North America, to support parts and service needs.
- Peace of Mind – Base warranty backed by Cummins for a full 5 years/100,000 miles, whichever comes first. Up to 8 years of optional full engine coverage, including injectors.
- Cummins Guidanz™ and INLINE™ Mini – Read real time engine data and email fault information from your smart phone to speed up the repair process.
- QuickServe™ Online Mobile – Provides complete parts and service information based on specific ESNs.
- Connected Diagnostics™ – Wirelessly connects Cummins-powered emergency vehicles to product experts at Cummins for immediate diagnosis of an engine system fault.
- Easier Maintenance – The compact design of the X12, together with easy service points for scheduled maintenance increases uptime.
- Get the Latest – Need more information about the Cummins X12 engine or Cummins Onan generators? Visit our Fire and Emergency Engines page. You can also stay up to date with quarterly articles in the First Responder newsletter at firstresponder.cumminsnewsletters.com.

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