The Mitsubishi 4M4 engine is a range of four-cylinder diesel piston engines from Mitsubishi Motors, first introduced in the second generation of their Montero/Pajero/Shogun SUVs. They superseded the previous 4D5 engine family, main differences are enlarged displacements and the utilization of one or two over-head camshafts. Originally available only as a 2835 cc intercooled turbo, detail improvements in 1996 and a larger 3.2 litre option in 1999 served to improve power, torque, fuel economy and emissions. The final version has 3.0 litres swept volume and Common rail direct injection.

4M40

Inline 4-cylinder SOHC, bore x stroke = 95 mm × 100 mm (3.74 in × 3.94 in), 2,835 cc (173.0 cu in), swirl combustion chamber

Naturally aspirated

Compression ratio 21.0:1, Zexel Distributor type injection pump, 59 kW (80 PS) at 4000 rpm, 198 N⋅m (146 lb⋅ft) at 2000 rpm

Applications:

• 1996–1999 Canter (lightest-duty), 69 kW (94 PS), 191 N⋅m (141 lb⋅ft) at 2000 rpm

Intercooled turbo gen 1

Compression ratio 21.0:1, 92 kW (125 PS) at 4000 rpm, 294 N⋅m (217 lb⋅ft) at 2000 rpm

Applications:

• 1993–1999 Pajero (second generation)
• 1996–2013 Mitsubishi Type 73 light truck, second generation
• 1998–2003 Triton/L200 Sport 4x4
• 1999–2009 Mitsubishi Colt LDV 4x4

Intercooled turbo gen 2

Compression ratio 21.0:1, Zexel Electronically controlled or Mechanical controlled distributor type Injection Pump, 103 kW (140 PS) at 4000 rpm, 314 N⋅m (232 lb⋅ft) at 2000 rpm

Applications:

• 2003–2006 Triton/L200 Sport 4x4
• 1994–2006 L400 Delica

4M41

Inline 4-cylinder DOHC 16 valve, Bore x Stroke 98.5 mm × 105 mm (3.88 in × 4.13 in), 3,200 cc (200 cu in)

Intercooled turbo

Compression ratio 17.0:1, Zexel Electronic control type distributor type pump (direct injection inside diesel tube) or Denso Common Rail direct injection, 121 kW (165 PS) at 4000 rpm, 351 N⋅m (259 lb⋅ft) at 2000-3000 rpm

Applications:

• 1999-2006 Pajero (third generation)
• 2005-2011 Triton/L200/Strada, 118 kW (160 PS) at 3800 rpm, 343 N⋅m (253 lb⋅ft) at 2000 rpm
• 2004-2006 Pajero (Philippine Domestic Market), 121 kW (165 PS) at 3800 rpm, 373 N⋅m (276 lb⋅ft) at 2000 rpm
• 2008-2011 Pajero Sport/Montero Sport, 120 kW (163 PS) at 3500 rpm, 343 N⋅m (253 lb⋅ft) at 2000 rpm

Variable geometry intercooled turbo

Compression ratio 17.0:1 or 16.0:1, Denso Common Rail Direct Injection

Applications:

• 2006–2009 Pajero (fourth generation), 125 kW (170 PS) at 3800 rpm; manual transmission: 118 kW (160 PS), 382 N⋅m (282 lb⋅ft) at 2000 rpm
• 2010–2022 Pajero (fourth generation), 147 kW (200 PS) at 3800 rpm, 441 N⋅m (325 lb⋅ft) at 2000 rpm

4M42

Inline 4-cylinder DOHC 16 valve, Bore x Stroke 95 mm × 105 mm (3.74 in × 4.13 in), 2,977 cc (181.7 cu in), direct injection

OAT , Applications:

• 2001-2007 Mitsubishi Fuso Canter

CR , Applications:

• 2007-2010 Mitsubishi Fuso Canter, 92 kW
• 2007-2010 Mitsubishi Fuso Canter, 107 kW

See also

• List of Mitsubishi engines
• List of Mitsubishi Fuso engines

References