Mitsubishi 4M engine

From Wikipedia, the free encyclopedia

The Mitsubishi 4M engine is a range of four cylinder diesel engines from Mitsubishi Motors, first introduced in the third generation of their Montero/Pajero/Shogun SUVs. They superseded the previous 4D56 engine family, although they did not replace them.

Originally available only as a 2.8 L intercooled turbo, detail improvements in 1996 and a larger 3.2 L option in 1999 served to improve power, torque, fuel economy and emissions.

1 4M40
- 1.1 Intercooled Turbo (1993–1996)
- 1.2 Intercooled turbo (1996–present)
2 4M41
- 2.1 Intercooled turbo (1999–present)
- 2.2 Variable geometry intercooled turbo
3 See also

[edit] 4M40

Engine type — Inline 4 cylinder SOHC Displacement — 2835 cc
Bore — 95 mm
Stroke — 100 mm
Fuel type — Diesel

[edit] Intercooled Turbo (1993–1996)

Fuel system — Distributor type injection pump
Compression ratio — 21:1
Power — 92 kW (125 PS) @ 4000 rpm
Torque — 294 N·m (217 ft·lbf) @ 2000 rpm

[edit] Intercooled turbo (1996–present)

Fuel system — Electronic control type distribution type jet pump
Compression ratio — 21:1
Power — 103 kW (140 PS) @ 4000 rpm
Torque — 314 N·m (232 ft·lbf) @ 2000 rpm

[edit] 4M41

Displacement — 3200 cc
Bore — 98.5 mm
Stroke — 105.0 mm
Fuel type — Diesel

[edit] Intercooled turbo (1999–present)

Fuel system — Electronic control type distributor type pump (direct injection inside diesel tube) or Common Rail Direct Injection
Compression ratio — 17:1
Power — 121 kW (165 PS) @ 3800 rpm
Torque — 351 N·m (259 ft·lbf) @ 2000 rpm

[edit] Variable geometry intercooled turbo

Fuel system — Electronic control type distributor type pump (direct injection inside diesel tube) or Common Rail Direct Injection
Compression ratio — 17:1
Power — 129 kW (175 PS) @ 3800 rpm
Torque — 382 N·m (282 ft·lbf) @ 2000 rpm