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Cummins L9.3 Engine Overivew
L9 FOR TRANSIT BUS (2024)
ON TIME AND ON BUDGET
Cummins L9 diesel delivers outstanding productivity with the best power-to-weight ratio in its class. Heavy-duty features such as a replaceable wet liner, roller followers, bypass oil filtration and targeted-piston cooling add years of engine life. Furthermore, transit fleet managers can expect a fuel economy improvement of up to 15 percent compared to buses purchased 10 years ago.
INNOVATION BEYOND THE ENGINE
An isolated coolant loop for transit buses improves reliability and reduces downtime. A water-to-water heat exchanger is mounted on the engine to provide heat to the passenger compartments as needed, while providing a self-contained coolant flow to the engine compartment area. This reduces potential coolant leakage and air infiltration so the Exhaust Gas Recirculation (EGR) cooler operates with greater reliability and durability.
A SUPPORT STAFF THAT'S ALWAYS ON
At Cummins, our mission is to provide a whole new level of customer service that delivers faster attention with rapid results. From the moment you engage Cummins Care, you will have access to a Cummins expert with the specialized skill set, experience and in-depth knowledge to take care of your transit bus needs.
Cummins L9 FOR TRANSIT BUS (2024) Engine Specifications
SHUTTLE BUS SPECIFICATIONS
ADVERTISED HORSEPOWER | 260-360 HP | 194-268 Kw |
PEAK TORQUE | 860 - 1150 lb-ft | 1165 - 1695 N*m |
GOVERNED SPEED | 2200 rpm |
CLUTCH ENGAGEMENT TORQUE | 575 lb-ft | 780 N*m |
NUMBER OF CYLINDERS | 6 |
ENGINE WEIGHT (DRY) | 1,695 Lbs | 769 Kg |
TRANSIT BUS SPECIFICATIONS
ADVERTISED HORSEPOWER | 350 HP | 261 Kw |
PEAK TORQUE | 925 - 1150 lb-ft | 1254 - 1559 N*m |
GOVERNED SPEED | 1900 rpm |
CLUTCH ENGAGEMENT TORQUE | 575 lb-ft | 780 N*m |
NUMBER OF CYLINDERS | 6 |
ENGINE WEIGHT (DRY) | 1,695 Lbs | 769 Kg |
L9 Hybrid (60' Transit Bus only)
ADVERTISED HORSEPOWER | 360 HP | 245 Kw |
PEAK TORQUE | 1,100 lb-ft | 1491 N*m |
GOVERNED SPEED | 1900 rpm |
CLUTCH ENGAGEMENT TORQUE | 575 lb-ft | 780 N*m |
NUMBER OF CYLINDERS | 6 |
Additional ratings may be available. Check with Qingbang.
Cummins L9 FOR TRANSIT BUS (2024) Engine Ratings
SHUTTLE BUS RATINGS
ENGINE MODEL | ADVERTISED HP (KW) | PEAK TORQUE LB-FT (N*M) @ RPM | GOVERNED SPEED |
L9 260 | 260 (194) | 860 (1,165) @ 1,200 | 2,200 RPM |
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 (245) | 1,000 (1,356) @ 1,200 | 2,200 RPM |
L9 350 | 360 (268) | 1,050 (1,424) @ 1,200 | 2,200 RPM |
L9 370 | 360 (268) | 1,150 (1,695) @ 1,200 | 2,200 RPM |
L9 380 | 360 (268) | 1,250 (1,696) @ 1,200 | 2,200 RPM |
TRANSIT BUS RATINGS
ENGINE MODEL | ADVERTISED HP (KW) | PEAK TORQUE LB-FT (N*M) @ RPM | GOVERNED SPEED |
L9 280 | 360 (268) | 925 (1,254) @ 1,200 | 1,900 RPM |
L9 350 | 350 (261) | 1,150 (1,559) @ 1,200 | 1,900 RPM |
L9 Hybrid (60' Transit Bus only)
ENGINE MODEL | ADVERTISED HP (KW) | PEAK TORQUE LB-FT (N*M) @ RPM | GOVERNED SPEED |
L9 360 | 360 (245) | 1,100 (1,491) @ 1,200 | 1,900 RPM |
