Mitsubishi 4M4 engine

4M4

Manufacturer	Mitsubishi Motors
Cylinder block alloy	Cast iron

The Mitsubishi 4M4 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 They superseded the previous 4D5 engine family, although they did not replace them.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.

4M40

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

Intercooled turbo

• Compression ratio — 21:1
• Power — 92 kW (125 PS) at 4000 rpm
• Torque — 294 N·m (217 lb·ft) at 2000 rpm

Intercooled turbo

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

Naturally aspirated

• Fuel system — Distributor type injection pump
• Compression ratio — 21:1
• Power — 59 kW (80 PS) at 4000 rpm
• Torque — 250 N·m (180 lb·ft) at 2000 rpm

4M41

• Engine type — Inline 4 cylinder DOHC
• Displacement — 3200 cc
• Bore — 98.5 mm
• Stroke — 105.0 mm
• Fuel type — Diesel

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 — 121 kW (165 PS) at 4000 rpm
• Torque — 351 N·m (259 lb·ft) at 2000-3000 rpm

Applications:

• 1999-2006 Mitsubishi Pajero
• 2005-present Mitsubishi Triton / L200 / Strada
• 2006-2007 Mitsubishi Pajero (Philippine Domestic Market)
• 2009-present Mitsubishi Pajero Sport / Montero Sport

1st Generation Variable geometry intercooled turbo

• Fuel system — Common Rail Direct Injection
• Compression ratio — 17:1, 16.0:1
• Power — 129 kW (175 PS) at 3800 rpm
• Torque — 382 N·m (282 lb·ft) at 2000 rpm

Applications:

• 2006-2009 Mitsubishi Pajero (currently on the Philippine Domestic Market Pajero)

2nd Generation Variable geometry intercooled turbo

• Fuel system — Common Rail Direct Injection
• Compression ratio — 17:1, 16.0:1
• Power —147 kW (200 PS) at 3800 rpm
• Torque — 450 N·m (330 lb·ft) at 2000 rpm

Applications:

• 2010-present Mitsubishi Pajero

See also

• List of Mitsubishi engines

transmission case