Cummins QSM11-C400 Engine Assembly

The Cummins QSM11-C400 is a heavy-duty, inline 6-cylinder industrial diesel engine designed for high-intensity construction and engineering machinery. It is widely used in large excavators, rotary drilling rigs, cranes, crawler dozers, and mining equipment.

In the model nomenclature, "QSM11" represents the Quantum series 11-liter fully electronic control platform, "C" stands for Construction/Industrial applications, and "400" signifies its maximum output of 400 Horsepower (298 kW).

Technical Specifications

Parameter Specification

Engine Type Inline 6-Cylinder, 4-Stroke Diesel

Aspiration Turbocharged & Charge Air Cooled (Air-to-Air)

Displacement 10.8 Liters (661 in³)

Bore × Stroke 125 mm × 147 mm (4.92 in × 5.79 in)

Rated Power 298 kW / 400 HP

Rated Speed 1800 RPM to 2100 RPM (Depending on tuning)

Peak Torque 1898 N·m (1400 lb-ft) @ 1400 RPM

Fuel System CELECT Full Authority Electronic Unit Injection

Emission Standard U.S. EPA Tier 3 / EU Stage IIIA / Euro III

Dry Weight Approx. 1,120 kg to 1,180 kg (2,464 lbs)