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  • Mitsubishi 4M4 engine (1993-)
Category
Engines
1990s
Japan

Mitsubishi 4M4 Diesel engine

Mitsubishi 4M4 Diesel engine Service Guide

Make

Mitsubishi Motors Corporation

manufacturing period

1993 to present

type

inline 4 cylinder

Displacement

2.8-3.2L

Fuel

Diesel

Cooling

Water-cooled

The Mitsubishi 4M4 engine is an in -line 4-cylinder diesel engine available only at first as 2835 cc intercooled turbo, detail improvements in 1996 and a larger 3200 cc and later a 3.0L. Manufactured by Mitsubishi Motors for SUVs, and was first installed in the second-generation Mitsubishi Pajero. The 4M4 type was developed to update the predecessor 4D5 type.

The original 4M40 model had a 2.8L intercooler turbo with a cast iron cylinder block. It was improved in 1996, and a 3.2L engine with a larger displacement appeared SOHC, DOHC in 1999, improving output, torque, fuel efficiency, and exhaust gas concentration.

Mitsubishi 4M4 Diesel engine Maintenance

4M40 

Naturally aspirated

  • Engine type — in-line 4-cylinder SOHC
  • Displacement — 2835 cc
  • Inner diameter — 95 mm
  • Stroke — 100 mm
  • Fuel — light oil

Turbo 

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

Intercooler turbo 

  • Fuel system — electronic or mechanical distribution injection pump
  • Compression ratio — 21:1
  • Power — 103 kW (140 PS) / 4000 rpm
  • Torque —314 N m (232 lb ft) / 2000 rpm

Naturally aspirated

  • Fuel System — Distributor Injection Pump
  • Compression ratio — 21:1
  • Power — 59 kW (80 PS) / 4000 rpm
  • Torque —198 N m (146 lb ft) / 2000 rpm

Mitsubishi 4M4 specifications Diesel engine

4M41 

  • Engine type — in-line 4-cylinder DOHC 16 valves
  • Displacement — 3200 cc
  • Inner diameter — 98.5 mm
  • Stroke — 105.0 mm
  • Fuel — light oil

Intercooler turbo 

  • Fuel system — electronically controlled distributed injection pump or common rail direct injection
  • Compression ratio — 17:1
  • Power — 121 kW (165 PS) / 4000 rpm
  • Torque —351 N m (259 lb ft) / 2000-3000 rpm

1st generation intercooler variable nozzle turbo 

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

2nd generation intercooler variable nozzle turbo 

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

Installed vehicles:

  • 1999-2006 Mitsubishi Pajero
  • 1999-2009 Mitsubishi Colt LDV 4x4
  • 2005-2011 Mitsubishi Triton/L200 / Mitsubishi Strada
  • 1994-2006 L400 Delica
  • 2006-2007 Mitsubishi Pajero (Philippine Spec)
  • 2008-2011 Mitsubishi Pajero Sport / Montero Sport
  • 2010–present Mitsubishi Pajero

Mitsubishi 4M4 engine Technical details  (1993-)

4M42 

Naturally aspirated

  • Engine type — in-line 4-cylinder DOHC 16 valves
  • Displacement — 2977 cc
  • Inner diameter — 95.0 mm
  • Stroke — 105.0 mm
  • Fuel — light oil

Intercooler Variable Nozzle Turbo (T1) 

  • Fuel System — Common Rail Direct Injection
  • Compression ratio—
  • Power — 81 kW (110 PS) / 3200 rpm
  • Torque —255 N m (188 lb ft) / 1700 rpm

Intercooler Variable Nozzle Turbo (T2) 

  • Fuel System — Common Rail Direct Injection
  • Compression ratio—
  • Power — 92 kW (125 PS) / 3200 rpm
  • Torque —294 N m (216 lb ft) / 1700 rpm

Intercooler Variable Nozzle Turbo (T3) 

  • Fuel System — Common Rail Direct Injection
  • Compression ratio—
  • Power — 96 kW (131 PS) / 3200 rpm
  • Torque —294 N m (216 lb ft) / 1700 rpm

Installed vehicle:

  • 2006-2011 Mitsubishi Fuso Canter
    • 2005-2006 Mitsubishi Fuso Canter
Related items
Mitsubishi Fuso Canter | Mitsubishi Pajero Shogun | Mitsubishi Triton | Mitsubishi Delica | Mitsubishi Colt | Straight-4 Engines | Diesel engines

Technical

Technical
  • Mitsubishi 4M4 engine Technical details and specifications (1993-)

    Engine: 4M41 (3.2L)

    No. of cylinders 4/DOHC
    Capacity 3200 cc
    Compression ratio 17,0:1
    Injection system Type Air metering MAP
    Pump type Common rail
    Injection sequence 1-3-4-2
    Maximum cranking amps 183A
    Alternator output A/V/91/13,1 @ 2500 rpm
    Glow plug nominal rating 9,0-11,0 V/A
    Glow plug activation time secs 4-8
    Compression pressure 16,5-24,0bar
    Oil pressure 0,3bar @ 600 rpm
    Radiator cap 0,93-1,23 bar
    Thermostat opens 80-84°C

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