Mitsubishi 4M4 engine

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 They superseded the previous 4D5 engine family, main differences are enlarged displacements and the utilization of one or two over-head camshafts.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 x 100 mm, 2835 cc, swirl combustion chamber

Naturally aspirated
Compression ratio 21.0:1, Zexel Distributor type injection pump, 59 kW at 4000 rpm, 198 Nm at 2000 rpm

Applications:
 * 1996–1999 Canter (lightest-duty), 69 kW, 191 Nm at 2000 rpm

Intercooled Turbo Gen 1
Compression ratio 21.0:1, 92 kW at 4000 rpm, 294 Nm at 2000 rpm

Applications:
 * 1993–1999 Pajero (second generation)
 * 1996–2013 Mitsubishi Type 73 Light Truck
 * 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 at 4000 rpm, 314 Nm 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 x 105 mm, 3200 cc

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 at 4000 rpm, 351 Nm 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 at 3800 rpm; manual transmission: 118 kW, 382 Nm at 2000 rpm
 * 2010–2022 Pajero (fourth generation), 147 kW at 3800 rpm, 441 Nm at 2000 rpm

4M42
Inline 4-cylinder DOHC 16 valve, Bore x Stroke 95 x 105 mm, 2977 cc, direct injection

OAT, Applications: CR, Applications:
 * 2001-2007 Mitsubishi Fuso Canter
 * 2007-2010 Mitsubishi Fuso Canter, 92 kW
 * 2007-2010 Mitsubishi Fuso Canter, 107 kW