المحرك Komatsu 6D140 لـ Komatsu Excavator

Product Overview
The Komatsu 6D140 is a powerful and reliable inline 6-cylinder, 4-stroke, water-cooled diesel engine with a displacement of 14.0 liters. Specially designed for large construction and mining machinery, it delivers high horsepower and massive torque, ensuring stable operation even under the most demanding conditions. Known for its durability and efficiency, the 6D140 is widely used in large excavators, bulldozers, and mining trucks.

Basic Information

Type: Inline 6-cylinder, 4-stroke, water-cooled diesel engine

Displacement: 14.0 L

Bore × Stroke: 140 mm × 165 mm

Number of Valves: 2 per cylinder, total 12 valves

Compression Ratio: Approximately 17:1

Performance

Maximum Power: about 250–400 kW (335–540 HP) @ 1900–2100 rpm (depending on version)

Massive low-end torque for heavy-duty equipment

Fuel System: Mechanical direct injection (later versions with electronic fuel control available)

Emission Standard: Early versions non-emission; updated variants meet regional emission standards

Structure and Maintenance

Cooling: Water-cooled

Starting: Electric starter

Weight: approx. 1,400–1,600 kg (varies with configuration)

Replaceable wet cylinder liners for extended service life

Rugged design for high reliability in harsh conditions

Applications

Large excavators (e.g., Komatsu PC600, PC650 series)

Bulldozers (e.g., Komatsu D155 series)

Mining trucks and wheel loaders

Industrial and mining machinery

Core Advantages

High power output and exceptional torque performance

Robust and durable, designed for extreme working conditions

Proven Komatsu reliability with long service intervals

Wide global availability of spare parts and service support

Related Models
We also provide Komatsu engines such as 6D95, 6D102, 6D107, 6D114, and 6D125, covering a full range of Komatsu construction and mining equipment.