Mitsubishi 4M41 CR Cylinder Head assembly (without cam and rockers) 171227-1

The cylinder head assembly fits the Mitsubishi 4M41 CR engine 171227-1, the same layout used in many Pajero and Triton models. Mechanics often look for this head when the original one shows heat spots or starts leaking around the gasket area. This replacement sits straight on the block, and the ports line up the way they should, so installation feels straightforward.

Another thing worth noting is the casting—clean, even, and shaped to match the 4M41 combustion pattern. That matters because the 4M41 engine reacts quickly to small airflow changes. A clean head helps it start smoother and hold power better under load.

Workshops usually prefer assemblies like this when they want to control the internal parts themselves. It gives them space to fit valves, cam, and rockers they trust, especially in engines that tow often or run long trips.

Here are a few simple reasons buyers pick this head:

• It matches the 4M41 CR block and sits correctly without modification
• The port layout supports steady airflow for everyday driving and towing
• Good choice when repairing overheating, cracked chambers, or compression loss
• Helps restore even running and smoother cold starts

Most customers install this head during a full top-end service. Once fitted, the engine usually settles into a more stable idle and holds power better during acceleration. That’s what workshops notice first.

If you’re replacing a worn or damaged head on a 4M41 CR engine, this assembly gives you a solid base to finish the rebuild and get the vehicle running properly again. Acme Impex tests the casting and machining before dispatch, so you receive a part that sits right and supports long-term use.