Mitsubishi 4M4 engine

{{Infobox automobile engine

| name = Mitsubishi 4M4 engine

| configuration = Straight-4

| production = 06/1994-

| fueltype = Diesel

| fuelsystem = Zexel Mechanical or Electronically controlled Distributor type injection pump
Denso Common rail direct injection

| coolingsystem = Water-cooled

| turbocharger = {{ubl

| TD04 turbo (4M40)

| TF035 turbo (4M40/4M41)

| IHI RHV5 variable-geometry turbo (4M41)

| Intercooler available

}}

| block = Cast iron

| valvetrain = SOHC, DOHC 4 valves x cyl.

| displacement = {{convert|2835-3200|cc|L|1|abbr=on|disp=flip}}

| bore = {{convert|95|mm|2|abbr=on}}
{{convert|98.5|mm|2|abbr=on}}
{{convert|95|mm|2|abbr=on}}

| stroke = {{convert|100|mm|2|abbr=on}}
{{convert|105|mm|2|abbr=on}}
{{convert|105|mm|2|abbr=on}}

| power = {{Convert|59-147|kW|PS|0|abbr=on}}

| torque = {{Convert|198-441|Nm|lbft|0|abbr=on}}

| compression = 16.0:1-21.0:1

}}

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 They superseded the previous 4D5 engine family, main differences are enlarged displacements and the utilization of one or two over-head camshafts.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.{{cite web |title=New Mitsubishi Triton Single Cab launched – RM70.5k |url=https://paultan.org/2013/03/28/mitsubishi-triton-single-cab/ |website=Paultan}}

4M40

Inline 4-cylinder SOHC, bore x stroke = {{convert|95 x 100|mm|2|abbr=on}}, {{convert|2835|cc|abbr=on}}, swirl combustion chamber

= Naturally aspirated =

Compression ratio 21.0:1, Zexel Distributor type injection pump, {{cvt|59|kW|PS|0}} at 4000 rpm, {{cvt|198|Nm|lbft|0}} at 2000 rpm

Applications:

1996–1999 Canter (lightest-duty), {{cvt|69|kW|PS|0}}, {{cvt|191|Nm|lbft|0}} at 2000 rpm

= Intercooled turbo gen 1 =

Compression ratio 21.0:1, {{cvt|92|kW|PS|0}} at 4000 rpm, {{cvt|294|Nm|lbft|0}} 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, {{cvt|103|kW|PS|0}} at 4000 rpm, {{cvt|314|Nm|lbft|0}} at 2000 rpm

Applications:

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

4M41

Inline 4-cylinder DOHC 16 valve, Bore x Stroke {{convert|98.5 x 105|mm|2|abbr=on}}, {{convert|3200|cc|abbr=on|}}

= 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, {{cvt|121|kW|PS|0}} at 4000 rpm, {{cvt|351|Nm|lbft|0}} 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), {{cvt|125|kW|PS|0}} at 3800 rpm; manual transmission: {{cvt|118|kW|PS|0}}, {{cvt|382|Nm|lbft|0}} at 2000 rpm
2010–2022 Pajero (fourth generation), {{cvt|147|kW|PS|0}} at 3800 rpm, {{cvt|441|Nm|lbft|0}} at 2000 rpm