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Cummins 6LT9.3 Engine Overivew
L9 FOR FIRE AND EMERGENCY (2021)
The Cummins L9 already has a reputation across North America as a proven workhorse, boasting 35+ years of production with more than 5 million engines manufactured globally. The performance, readiness, and reliability of the Cummins L9 are the three factors that continue to make it the leading choice for first responders across North America.
Designed for fire service
Fire pump governor interface
Maintenance-free crankcase breather
Optional higher capacity oil pans with longer oil drain intervals
Performance
VGT Turbocharger – This patented design is a key element in delivering faster engine warm-up, enhanced braking horsepower, and an improved throttle response for the most challenging applications
Wide range of HP Ratings – From 270 – 450 hp
Peak torque over a wider RPM range
Reliability
Delivers class-leading power and torque ratings, and the power-to-weight ratio to get the toughest jobs done
Single module aftertreatment – This single pass-through design optimizes exhaust flow and maintain hotter, consistent temperatures across the unit
Offers Cummins Connected Software to help you find, prevent and resolve issues faster
Cummins L9 FOR FIRE AND EMERGENCY (2021) Engine Specifications
IDLE SPEED | 700-800 RPM |
ENGINE BRAKING HORSEPOWER | 351 hp @ 2600 RPM |
GOVERNED SPEED | 2400 rpm |
NUMBER OF CYLINDERS | 6 |
ENGINE WEIGHT (DRY) | 1,695 Lbs (769 kg) |
ENGINE WEIGHT (WET) | 1,770 Lbs (803 kg) |
AFTERTREATMENT WEIGHT | 136-168 lbs (61-76 kg) |
Additional ratings may be available. Check with Qingbang.
Cummins L9 FOR FIRE AND EMERGENCY (2021) Engine Ratings
ENGINE MODEL | ADVERTISED HP (KW) | PEAK TORQUE LB-FT (N*M) @ RPM | GOVERNED SPEED |
L9 270 | 270 (201) | 860 (1,165) @ 1,200 | 2,200 RPM |
L9 300 | 300 (224) | 860 (1,165) @ 1,200 | 2,200 RPM |
L9 330 | 330 (246) | 1,000 (1,356) @ 1,200 | 2,200 RPM |
L9 350 | 350 (261) | 1,050 (1,424) @ 1,200 | 2,200 RPM |
L9 360 | 360 (268) | 1,150 (1,559) @ 1,200 | 2,200 RPM |
L9 370 | 370 (276) | 1,250 (1,695) @ 1,200 | 2,100 RPM |
L9 380 | 380 (283) | 1,150 (1,559) @ 1,200 | 2,200 RPM |
L9 400 | 400 (298) | 1,250 (1,695) @ 1,200 | 2,200 RPM |
L9 450 | 450 (324) | 1,250 (1,695) @ 1,200 | 2,200 RPM |
