The Mitsubishi 4M41 engine is a water-cooled 4-cylinder in-line engine. Engine power ranges from 160 hp up to 200 hp with an engine volume of 3200 cc. At first, the motor was equipped with a distribution pump and only since 2006 with Common Rail.
4M41 is a turbocharged engine with an installed MHI air blower. Compared to its predecessor 4M40, the power has been increased to 165 hp, the torque is 351 Nm and the environmental performance has been improved.
Since 2006, the production of a modernized Common Rail engine began. The turbine changed to IHI variable geometry. The intake ports have been improved, a new intake manifold with swirl phases has been installed and the EGR system has been improved. This made it possible to increase the ecological class, raise the power to 175 hp and a torque of up to 382 Nm.
After another 4 years, the engine was again modified. Power increased to 200 hp, torque – to 441 Nm.
Specifications
| Manufacturer | Kyoto engine plant |
| Also called | 4M4 |
| Production years | 1999 |
| Displacement, cc | 3200 |
| Power output, hp | 165/4000 175/3800 200/3800 |
| Torque output, Nm / rpm | 351/2000 382/2000 441/2000 |
| Cylinder block alloy | cast iron |
| Engine’s type | diesel |
| Configuration | inline |
| Number of cylinders | 4 |
| Number of valves | 16 |
| Piston stroke, mm | 105 |
| Cylinder bore, mm | 98.5 |
| Compression ratio | 16.0 17.0 |
| Turbocharger | MHI TF035HL |
| Fuel consumption, L/100 km (for Pajero 4) — city — highway — combined |
11.4 8.0 9.3 |
| Oil consumption, gr/1000 km | up to 1000 |
| Recommended engine oil | 5W-30, 10W-30, 10W-40, 15W-40 |
| Engine oil capacity, liter | 9.3 |
| Oil change interval, km | 15000 |
| Normal engine operating temperature, °C | 90 |
| Engine lifespan, km — official information — real |
— 400+ |
Frequent problems
What problems can car owners face with 4M41:
- in the first versions of the engine without Common Rail, the injection pump often malfunctioned and the pistons burned out;
- the timing chain serves about 200-250 thousand km, and then it stretches and rings loudly;
- a crankshaft pulley with a rubber clutch may fall apart even at low mileage;
- approximately once every 50,000 km, you have to clean the USR and tighten the alternator belt.
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