Harlow's Bus and Truck Sales

Information

2024 Cummins M11

The M11-280E Plus engine is ideal for on-highway applications hauling up to 80,000 lb GCW for speeds up to 60 mph.

This engine delivers outstanding performance in the 1200-1800 rpm range. The road speed governing feature of CELECT™ Plus provides precise control of top road speed and further improves fuel economy and performance.

Check the desired maximum road speed one gear down from top gear. If the maximum road speed is able to be maintained one gear down, the gear-down protection feature should be set approximately 4 mph below the maximum road speed setting. The gear-down feature will ensure that the vehicle is in top gear before the maximum road speed can be reached.

The following charts list some of the acceptable combinations for top gear road speeds between 55 and 60 mph with approximate engine speeds in the 1500-1700 rpm range. These gearing combinations provide the full advantage of the performance and fuel economy benefits of the M11-280E Plus engine.

Features may include:

• Camshaft lobes/cam follower rollers: micro-finished for longer life

• Cylinder head: advanced metallurgy delivers durability, and a new design optimizes swirl combustion for fuel efficiency and emissions

• Cylinder liner: patented mid-stop design minimizes oil consumption and increases durability

• Piston: articulated design featuring forged steel crown and aluminum skirt allows for higher top ring position, optimizing fuel efficiency

• Valve-injector train: cast iron rocker supports for improved durability and simplified compression brake installation

• Maximum fuel efficiency is delivered where most of the driving gets done

• CELECT™ Plus: full-authority electronic fuel system optimizes injection timing and metering for outstanding fuel efficiency. Includes a host of performance features that can be tailored to the customer's specifications

• Air intake system: charge air cooling, utilized to lower intake manifold temperatures, improves fuel efficiency and reduces emissions levels