The Mitsubishi 4M40 engine is a 2.8-liter, four-cylinder, in-line, water-cooled, four-stroke diesel engine, known for its use in Mitsubishi Pajero and Canter vehicles. It has variants, including naturally aspirated versions that produce around 74-78 horsepower and turbocharged versions (4M40T, 4M40DDTI) that are more powerful, generating 98-140 horsepower. This engine features a single overhead camshaft (SOHC), direct fuel injection, and is valued for its reliability when properly maintained and its excellent low-end torque for off-road and heavy-load applications.
Key Features and Specifications
- Engine Type: Four-cylinder, in-line, water-cooled, four-stroke diesel engine.
- Displacement: 2.8 liters (2,839 cc).
- Valve System: 16 valves, with a single overhead camshaft (SOHC).
- Fuel System: Direct fuel injection.
- Cylinder Configuration: Four cylinders in a line.
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4M40B:
A naturally aspirated (non-turbocharged) version, noted for its simplicity and lower maintenance costs.
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4M40T/4M40DDTI:
Turbocharged versions that offer higher power output and better fuel efficiency, making them suitable for more demanding applications.
- Mitsubishi Pajero/Montero: A common engine in the second generation of this SUV.
- Mitsubishi L200/Triton: Found in these trucks, particularly the direct injection variants.
- Mitsubishi Delica: Often featured in this van model.
- Mitsubishi Canter/Fuso Trucks: The turbocharged versions are used in these commercial vehicles.
Performance and Characteristics
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Power:
Ranges from approximately 74-78 hp (55-58 kW) for naturally aspirated models to 98-140 hp (73-104 kW) for turbocharged variants.
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Torque:
Produces strong low-end torque, which is excellent for hauling heavy loads and off-road driving.
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Reliability:
A reliable engine if maintained properly, though regular maintenance is crucial.
The Mitsubishi 4M40 engine is a 2.8-liter, in-line four-cylinder, turbocharged diesel engine, known for its reliability and strong low-end torque, with a typical power output of 85-96 kW (114-128 hp) and displacement of 2,835 cc. It features a single overhead camshaft (SOHC) design with two valves per cylinder, a direct fuel injection system, and a water-cooling system. This engine was used in various Mitsubishi vehicles, such as the Pajero and L200, and was praised for its efficiency and suitability for off-road and commercial use.
- Engine Type: In-line four-cylinder, water-cooled diesel engine.
- Displacement: 2.8 liters (2,835 cc).
- Aspiration: Turbocharged, often with intercooling.
- Valvetrain: SOHC (Single Overhead Camshaft).
- Power Output: Approximately 85–96 kW (114–128 horsepower).
- Torque: 240–300 Nm (177–221 lb-ft).
- Bore x Stroke: 94 mm x 100 mm.
- Compression Ratio: 19.5:1.
- Fuel System: Direct fuel injection.
- Mitsubishi Pajero: Used in the Pajero (Montero in some markets).
- Mitsubishi L200: Also known as the Triton or Strakar.
- Commercial Vehicles: Used in various military and commercial variants.
- Torque: Excellent low-end torque for pulling power, especially in off-road and heavy-duty applications.
- Reliability: Known for its robustness and ability to withstand harsh conditions.
- Fuel Efficiency: Offers good fuel economy for its power class.
- Ease of Maintenance: Generally considered easy to maintain with readily available parts.
 that are more powerful, generating 98-140 horsepower. This engine features a single overhead camshaft (SOHC), direct fuel injection, […]){kind=link}
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