HM618 Heavy-Duty Truck Engine Series

The HM618 Heavy-Duty Truck Engine Series is designed to deliver powerful performance, strong torque, and dependable operation for heavy-duty trucks and mining vehicles. Available in three configurations—HM12.375, HM12.420, and HM12G.420—the series offers power outputs suited to demanding commercial transport and heavy-duty operating conditions.

Featuring a six-cylinder, water-cooled, four-stroke, direct-injection diesel configuration, the HM618 series incorporates turbocharging and intercooling to support efficient combustion and consistent power delivery. Its 11.596-litre displacement, 17:1 compression ratio, and two-valve-per-cylinder design provide a robust engine platform for applications requiring substantial pulling power and sustained performance.

The series delivers rated power outputs of 276 kW and 309 kW, corresponding to maximum horsepower ratings of 375 HP and 420 HP. Maximum torque reaches 1,750 N·m, depending on the model, with peak torque available between 1,300 and 1,600 rpm. Operating at a rated speed of 2,200 rpm, the engine is designed to provide practical power delivery for compatible heavy-duty vehicles.

Additional features include an exhaust braking system, a mechanical fuel system, clockwise crankshaft rotation, and compatibility with China II / Euro II emission standards. With a net weight of approximately 905 kg and compact dimensions of 1,566 × 582 × 1,021 mm, the HM618 Heavy-Duty Truck Engine Series offers a practical diesel power solution for compatible trucks and mining vehicles.

Key Features

• Available models: HM12.375, HM12.420, HM12G.420

• Engine configuration: Six-cylinder, inline diesel engine

• Cooling system: Water-cooled

• Engine cycle: Four-stroke, direct injection

• Induction system: Turbocharged and intercooled

• Total displacement: 11.596 L

• Compression ratio: 17:1

• Valves per cylinder: 2

• Rated speed: 2,200 rpm

• Rated power: 276 kW / 309 kW / 309 kW

• Maximum horsepower: 375 HP / 420 HP / 420 HP

• Maximum torque: 1,600 N·m / 1,750 N·m / 1,750 N·m

• Maximum torque speed: 1,300–1,600 rpm

• Minimum fuel consumption: 198 g/kWh

• Fuel system: Mechanical fuel pump, as indicated by the supplied specifications

• Braking feature: Exhaust brake

• Emission standard: China II / Euro II

• Crankshaft rotation: Clockwise

• Noise level: 104 dB at one metre

• Oil capacity: 23–25 L

• Net weight: Approximately 905 kg

• Dimensions (L × W × H): 1,566 × 582 × 1,021 mm

Model Cross-Reference

The HM618 Heavy-Duty Truck Engine Series combines substantial torque, multiple power configurations, and a robust diesel design to support the demanding requirements of heavy-duty transport and mining applications.