Mitsubishi 4D56DI Cylinder Head assembly 171228
171228This Mitsubishi 4D56DI Cylinder Head Assembly 171228 suits engines that start losing compression, running rough, or showing clear top-end wear. The casting sits clean, the surfaces line up well, and it gives mechanics a solid base to bring the 4D56DI engine back to normal running. Workshops often pick this assembly when the old head cracks from heat or age because it saves time during repairs and fits the 4D56 layout without fuss. If you want a straightforward replacement that helps the engine run smoother again, this assembly fits the job.
This Mitsubishi 4D56DI Cylinder Head Assembly 171228 fits the 4D56DI engine used widely in pickup and SUV platforms. Many engines in this range start facing top-end issues after years of load, and this assembly gives you a clean start when the old head gets warped, cracked, or simply worn out from heat cycles.
The head sits correctly on the block, and the ports match the 4D56DI layout, so you don’t fight alignment during installation. Most technicians appreciate that the sealing surfaces come clean and uniform, which helps them set the gasket without extra work.
Another thing worth noting is how the combustion chambers match the original shape. That helps maintain the engine’s usual firing pattern and avoids odd knocking that sometimes shows up with mismatched aftermarket parts.
Why workshops choose this assembly
- Fits the Mitsubishi 4D56DI engine layout without modification
- Helps restore compression and smooth running when the old head is damaged
- Ports, chambers, and mounting points line up with factory design
- Works well for engines exposed to towing, heavy load, or long-distance running
- Reduces repair time by offering a ready-to-set base for top-end rebuilding
In most cases, replacing the head brings back stable idling and better pull under load, especially if the previous unit suffered from overheating or gasket failure.
If you repair diesel engines regularly, you already know how common 4D56 head issues can be. This assembly gives you a clean fix—no complicated adjustments, no odd fitment surprises.
Buying from Acme Impex also means the casting and machining go through strict checks before dispatch. We focus on parts that fit correctly the first time, so workshops save both time and callbacks.
If you are bringing a 4D56DI engine back to proper running, this cylinder head assembly is a practical choice that supports a smooth rebuild and steady long-term performance.