Cylinder Head Supply
Mitsubishi Triton Challenger 4D56U 4D56Di-T 2.5L Cylinder Head Complete
Mitsubishi Triton Challenger 4D56U 4D56Di-T 2.5L Cylinder Head Complete
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Complete 4D56U Cylinder Head — Ready to Install
Brand new aftermarket complete 4D56Di-T cylinder head for Mitsubishi Triton and Challenger with 2.5L 4-cylinder DOHC turbo diesel engine. Both camshafts and adjustable rocker arms supplied, valves, springs, retainers and seals fitted. VRS head gasket set, TTY head bolts and camshaft lube included. Professionally assembled, valve-to-seat compression tested, and head face checked and refaced if necessary.
Fits: Mitsubishi Triton ML, MN and Challenger PB, PC (2009–2015) — Engine code 4D56U, 4D56Di-T, 2.5L DOHC turbo diesel. Suits both 100kW (2WD) and 130kW (4WD) models.
Important: This head suits both the 100kW 2WD and 130kW 4WD variants of the 4D56U engine. The camshafts and adjustable rocker arms are supplied with the head but must be removed prior to fitting the head to the block, then refitted afterwards. Rocker clearances must be set by the installer after assembly — this is standard procedure for the 4D56U engine.
What's Included:
- Brand new aftermarket complete cylinder head assembly
- Both camshafts and adjustable rocker arms (supplied, fitted after head installation)
- Valves, springs, retainers & valve stem seals fitted
- Premium VRS gasket set with thickest head gasket & all seals
- Torque-to-yield (TTY) stretch bolts (single-use)
- Camshaft assembly lube
- ✓ Free Delivery: Available to most Australian addresses — Perth pickup also available
Key Specifications:
- Engine Code: 4D56U / 4D56Di-T — 2.5L 4-cylinder DOHC turbo diesel
- Valve configuration: 16-valve DOHC
- Cam drive: Belt drive
- Power output: Suits 100kW (2WD) and 130kW (4WD) models
- Head gasket: Thickest specification
- Bolt type: Torque-to-yield (TTY) stretch bolts (single-use)
- Quality: 100% quality inspected, valve-to-seat compression tested, head face checked and refaced if necessary
- ✓ Warranty: 12 months
Compatibility Guide
Guide only — please contact us if you are unsure.
- 2009–2015: Mitsubishi Triton ML, MN with 2.5L DOHC turbo diesel, engine code 4D56U — 100kW 2WD and 130kW 4WD
- 2009–2013: Mitsubishi Challenger PB with 2.5L DOHC turbo diesel, engine code 4D56U — 130kW
- 2013–2015: Mitsubishi Challenger PC with 2.5L DOHC turbo diesel, engine code 4D56U — 130kW
A high-volume aftermarket replacement head for one of Mitsubishi's most popular turbo diesel platforms — the 4D56U Triton and Challenger have a strong following in Australia and this complete kit gets them back on the road properly.
Order online or by phone. Pickup available in Perth (Midland) or fast dispatch from Melbourne.
Further Reading: 4D56 Cylinder Head Failure — Symptoms, Causes & Replacement Options
Frequently Asked Questions
Why do the camshafts need to be removed before fitting the head?
The 4D56U uses adjustable rocker arms — the camshafts and rockers must be removed to allow the head to be bolted down correctly, then refitted and rocker clearances set by the installer. This is standard procedure for this engine.
Does this suit both the 2WD and 4WD Triton?
Yes — this head suits both the 100kW 2WD and 130kW 4WD variants of the 4D56U engine. One head fits all Triton ML/MN and Challenger PB/PC models from 2009–2015.
Are the head bolts reusable?
No — the 4D56U uses torque-to-yield (TTY) stretch bolts which are single-use only. New bolts are included in this kit.
Related products: 4D56U Cylinder Head with Valves | 4D56U Head Gasket Set with Bolts | Browse all Mitsubishi 4D56 Parts
Fitment & Product FAQ
Are the cylinder heads supplied assembled?
Most are supplied assembled, with the camshaft, valves, springs and seals already fitted so they are ready for installation. Some applications require the original camshaft and rocker gear to be transferred across. Confirm the details in the ‘What’s Included’ section for the product you are viewing.
What will I receive with my order?
The contents vary by application. Most complete cylinder-head kits include the assembled head, a VRS gasket set and new head bolts. Some products require reuse of the original camshaft and rockers. For engines using an MLS gasket, we supply the thickest available specification. Gasket-set-only products include the head gasket, manifold gaskets, valve stem seals, rocker cover gasket, head bolts and required O-rings. Check the product’s ‘What’s Included’ section for the exact contents.
What warranty is included?
Every cylinder head includes a 12-month warranty against manufacturing defects. We carefully select our heads and stand behind the quality supplied.
How can I confirm it fits my vehicle?
Use the ‘Fits’ section to check the compatible make, model, year and engine code. If you are still unsure, send us your VIN before ordering and we can confirm the application.
How quickly will my order arrive?
Orders are dispatched from Perth or Melbourne. Most deliveries arrive within 2–5 business days, with express delivery available at checkout.
Does the head need machining before installation?
No. Our cylinder heads are manufactured to OEM specifications and are supplied ready to fit, so machining should not be required before installation.