Applicable Engine:
4D56U / 4D56HP
Applicable Brand:
MITSUBISHI
Applicable Car:
L200 / Triton / Pajero Sport
Product parameters:
| Displacement | Fuel | Cylinder | Vale | Camshaft | Year |
| 2.5CRDI |
Diesel
|
4 | 16 | 2 | 2006 - 2020 |
Complete Cylinder Head
Complete Cylinder Head Assembly for Mitsubishi 4D56U 4D56HP 2.5L Turbo Diesel Engine – DOHC SOHC 16V
Introduction
Bare Cylinder Head Product NO.
| ML NO. | OEM NO. | REF NO. |
| MLG062 | 1005A560 1005B453 1005B452 | 908519 |
Product Description
This fully assembled cylinder head is designed for the Mitsubishi 4D56U and 4D56HP 2.5L turbo diesel engines, commonly found in L200, Triton, Pajero Sport, Delica, and Challenger models across global markets. These newer variants of the 4D56 engine series use high-pressure common rail direct injection (CRDi), EGR, and variable geometry turbochargers (VGT) depending on version and region.
Made from high-strength aluminum alloy, this head is CNC-machined and pressure-tested, delivered as a complete top-end solution for both SOHC (HP) and DOHC (U) variants.
Technical Specifications
| Specification | 4D56HP | 4D56U |
|---|---|---|
| Displacement | 2.5L (2477cc) | 2.5L (2477cc) |
| Valvetrain | SOHC 16V | DOHC 16V |
| Turbocharged | Yes (VGT) | Yes |
| Fuel System | Common Rail Direct Injection (CRDi) | |
| EGR System | Yes (Euro 3–5 compliant) | |
| Cooling | Water-cooled | |
| Head Material | Aluminum alloy | |
| Camshaft Drive | Timing belt (SOHC), Timing chain (DOHC) | |
| Compression Ratio | ~17.0–17.5:1 | |
| Emissions | Euro 3–5 (varies by model year) |
Assembly Includes (Pre-installed)
- Aluminum cylinder head casting (pressure-tested)
- Intake and exhaust valves
- Valve springs, retainers, keepers
- Valve stem seals
- Camshafts (1 for SOHC, 2 for DOHC)
- Camshaft journals and caps
- Rocker arms and hydraulic lash adjusters
- Valve seats and guides (machined and pressed)
Assembly is 100% complete, ready for installation.
Required for Installation (Not Included)
- Head gasket
- Head bolts (torque-to-yield)
- Timing belt/chain set
- EGR gasket
- Rocker cover gasket
- Manifold gaskets
- Injector copper washers
- Fresh coolant and engine oil
Compatible Vehicles
4D56HP (SOHC, CRDi):
- Mitsubishi L200 (Triton) 2.5 Di-D
- Mitsubishi Pajero Sport 2.5 Di-D
- Mitsubishi Challenger 2.5L Diesel
- Mitsubishi Delica 2.5 Turbo
- Some versions of Foton Tunland (4D56 license)
4D56U (DOHC, Euro 4/5 CRDi):
- Mitsubishi L200 (later models, post-2010)
- Mitsubishi Pajero Sport Euro 5
- Mitsubishi Montero Sport
- Mitsubishi Challenger 2.5L (newer)
- JMC & other licensed Chinese commercial vehicles
Note: Differences exist in camshaft layout, rocker design, and EGR routing—please verify your engine code before ordering.
OEM Part Numbers (Reference)
- ME223872
- ME223874
- ME223875
- ME194192
- 1037060
- 908515
(Variants by turbo, DOHC/SOHC, and emission control)
Common Problems Solved
| Problem | Cause | Solution |
|---|---|---|
| Cracked head due to overheating | Thin casting or EGR clogging | New thick-wall casting, pressure-tested |
| Valve stem oil leaks | Worn stem seals | New seals and guides pre-installed |
| Camshaft journal scoring | Oil starvation or dirt | New camshaft and cap sets installed |
| Low compression | Valve seat erosion | All seats re-machined and tested |
| Injector seating damage | Carbon deposits | Clean-machined injector pockets included |
Installation Tips
- Ensure the engine block surface is clean and flat.
- Use a new head gasket and torque head bolts in sequence (refer to service manual).
- Align timing belt or chain correctly with cam/crank marks.
- Confirm EGR and turbo mounting compatibility.
- Fill with fresh coolant and oil, bleed air.
- Re-check valve clearance (especially for DOHC).
- Inspect injector seating and fuel line torque after install.
Export Markets & Applications
The 4D56U / 4D56HP engine heads are in high demand in:
- Southeast Asia: Philippines, Thailand, Vietnam, Indonesia
- South America: Peru, Ecuador, Chile, Bolivia
- Middle East: Iraq, Jordan, UAE, Iran
- Africa: Kenya, South Africa, Nigeria, Egypt
- Eastern Europe: Turkey, Ukraine, Russia
Preferred by:
4×4 performance upgrade shops
Diesel rebuild workshops
Fleet maintenance operations
Parts dealers and importers
Off-road service shops