Engine Mitsubishi 4D56

The 2.5-liter Mitsubishi 4D56 diesel engine was assembled by the concern from 1986 to 2016 and was installed on Pajero and Pajero Sport SUVs, L200 pickups and Delica minibuses. This power unit served as the basis for the well-known Hyundai D4BA, D4BF and D4BH diesel engines.

The 4D56 engine was developed in 1986 by the Japanese automobile company Mitsubishi. After that, for 10 years, Japanese engineers were finalizing it. The main task for the designers was to increase the power and service life, to ensure normal maintainability.

4D56 is designed according to the standard layout, the cylinder heads are made of aluminum and the block is made of cast iron. It was the use of such alloys that made it possible to achieve the smallest mass and provide excellent thermal stability. In 2001, the production of 4D56 with a Common Rail fuel system began. New pistons were used, which reduced the compression ratio to 17. All this allowed to increase power and torque.

The 4D5 family also includes engines: 4D55.

The engine was installed on:

  • Mitsubishi Delica 3 (P03) in 1986 – 1999; Delica 4 (PA4) in 1994 – 2007;
  • Mitsubishi L200 2 (K10) in 1986 – 1996; L200 3 (K70) in 1996 – 2006; L200 4 (KB) in 2006 – 2016;
  • Mitsubishi Pajero 1 (L040) in 1986 – 1991; Pajero 2 (V30) in 1990 – 2000; Pajero 3 (V70) in 1999 – 2006;
  • Mitsubishi Pajero Sport 1 (K90) in 1996 – 2008; Pajero Sport 2 (KH) in 2008 – 2016.


Manufacturer Kyoto engine plant
Hyundai Ulsan Plant
Production years 1986-2016
Displacement, cc 2477
Fuel system vortex chamber
Common Rail
Power output, hp 74/4200
Torque output, Nm 142/2500
Cylinder block cast iron R4
Block head aluminum 8v / 16v
Cylinder bore, mm 91.1
Piston stroke, mm 95
Compression ratio 21.0
Features no
Hydraulic lifters no
Timing drive belt
Turbocharging no
Recommended engine oil 5W-30, 5W-40
Engine oil capacity, liter 6.5
Fuel type diesel
Euro standards Euro 2
Euro 3
Euro 4
Euro 5
Fuel consumption, L/100 km (for Mitsubishi Pajero Sport 2004)
— city
— highway
— combined
Engine lifespan, km ~400 000
Weight, kg 193

Modifications 4D56


  • Power – 74 hp (55 kW) at 4200 rpm;
  • Torque – 142 Nm @ 2500 rpm;
  • Engine type – in-line, 4-cylinder SOHC;
  • The Compression ratio is 21.0: 1.

Non-intercooled Turbo:

  • Power – 84 HP (62 kW) at 4200 rpm;
  • Torque – 201 Nm @ 2000 rpm;
  • Engine type – in-line, 4-cylinder SOHC.

Intercooled Turbo (TD04 Turbo):

  • Power – 90 HP (67 kW) at 4200 rpm;
  • Torque – 197 Nm @ 2000 rpm;
  • Engine type – in-line, 4-cylinder SOHC;
  • The Compression ratio is 21.0: 1.

Intercooled Turbo (TD04 water-cooled Turbo)*:

  • Power – 99 HP (74 kW) at 4300 rpm;
  • Torque – 240 Nm @ 2000 rpm;
  • Engine type – in-line, 4-cylinder SOHC;
  • The Compression ratio is 21.0: 1.

*Also known as Hyundai D4BH.

Intercooled Turbo TF035HL2 (1st Generation DI-D):

  • Power – 114 hp (84 kW) at 4000 rpm;
  • Torque – 247 Nm @ 2000 rpm;
  • Engine type – in-line, 4-cylinder;
  • The Compression ratio is 17.0: 1.

Intercooled Turbo (2nd Gen DI-D):

  • Power – 136 HP (100 kW) at 4000 rpm;
  • Torque – 320 Nm @ 2000 rpm;
  • Engine type – in-line, 4-cylinder;
  • The Compression ratio is 17.0: 1.

Intercooled Turbo (3rd Gen with DI-D variable geometry turbine)
With manual transmission:

  • Power – 178 hp (131 kW) at 4000 rpm;
  • Torque – 400 Nm @ 2000 rpm;
  • Engine type – in-line, 4-cylinder;
  • Compression ratio – 16.5: 1.

With automatic transmission:

  • Power – 178 hp (131 kW) at 4000 rpm;
  • Torque – 350 Nm @ 1800 rpm;
  • Engine type – in-line, 4-cylinder;
  • Compression ratio – 16.5: 1.

Disadvantages of the Mitsubishi 4D56 engine

Engine 4D56 under the hood

  • This diesel unit is afraid of overheating and the cylinder head gasket breaks regularly. But replacing the gasket is not enough, you will have to grind the mating surfaces. After a couple of breakdowns, cracks can often be found near valves or prechambers.
  • Another serious problem of this engine is the breakdown of the crankshaft, and this happens especially often during prolonged movement at low engine speeds. In engines with a Common Rail system, the crankshaft journals are thicker and breakdown is less common.
  • For obvious reasons, the fuel system delivers the bulk of the trouble to the owners of such diesel engines, and this applies to both vortex chamber and Common Rail versions.
  • The timing belt does not have a large resource and does not always run the required 90,000 km, especially if you do not tighten it every 30,000 km. With a break, it only breaks off the rocker, but in the Common Rail version of the engine, it often pulls out the mounting bolts of the camshaft yokes. When a balancer belt breaks, it usually falls under the timing belt and also breaks it.
  • Also, oil leaks are common here, almost all gaskets and seals sweat, the crankshaft pulley and the vacuum pump have a low resource, the EGR valve clogs, a lot of trouble is associated with airing, and pistons burst at the slightest tuning. And do not forget to check the valve clearance every 20,000 km or they will simply burn out.
  • 15 thoughts on “Engine Mitsubishi 4D56”

    1. john brown

      Been reading a lot of good and bad about the 4d56, mine is a triton 2014, back in 2021 after a 3 hour drive the coolant could be heard perculating into the overflow tank from the radiator, i pulled over and watch how this was eventuating, allowed to cool and refilled with no more issues mind you we hadnt been on a drive for 3 hrs the radiator was then upgraded with a replacement from Natrad, i also changed the thermostat, 5 weeks ago same event happened and same senario followed, the triton is booked in with mitsubishi next week, what should i be wary of if any wrong doings, TIA

    2. joseph Bwalya

      My 4D56 engine ,the oil. Consumption is high,and its producing black smoke,what could be the cause,(Triton).

    3. How do I know that my car were using turbo charge coz I bought it very soon but it horse power is very low

    4. milton fernando zabala guevara

      Good afternoon, I’m from Ecuador. Do you know that I have a 2009 L200 Sportero? A new engine for this truck. What would be the value, please?

    5. K A W Jayatissa

      I have Mitsubishi L 200 pickup ( double cab) – YOM 2017.
      Engine no. 4D56 UAI 1388.
      I would like to know the type of diesel to be used.

    6. Micheal A Etebu

      I am from uganda and using pajero mitshubishi 4D56 ordinary engine vehicle. I have admired and loved this engine. How do l get another shipment of this new engine with it’s AC complete systems I need to replace mine since my boss is as good as new

      1. Micheal A Etebu

        I need another complete 4D56 engine plus it’s AC complete systems. How much will it cost me

          1. JOSE P. GARCIA

            Good day Mr Emmanuel, I have a 2nd hand Mitsubishi adventure GLX model 2008 acquired just recently, i notice that the rubber damper of crankshaft pulley was worn-out, instead of replacing it was fully weld. Is there a bad effect of engine of this remedy they
            made by the previous owner? Please contact me 09098158261, Thank you

        1. Hi mike, am Gilbert. Am a mitsubishi wagon montero 1989 make owner and seems we share common thinking .. get me on 0704822400 I actually need non turbo engine
          .please if u get a supplier let me know

    Leave a Comment

    Your email address will not be published. Required fields are marked *

    Scroll to Top