Mitsubishi 4D56DI Cylinder Head assembly (without cam and rockers) 171228-1
171228-1This Mitsubishi 4D56DI cylinder head assembly 171228-1 suits engines that start showing signs of cracking, overheating, or uneven compression. The head sits in place the same way the original one does, so workshops can move straight into assembly without extra adjustments. The casting arrives clean, machined, and ready for technicians who want a clear starting point. It fits well on the 4D56DI setup and helps bring the engine back to steady running once the rest of the top end goes back together. Many mechanics choose this option when they want a practical part that works without fuss.
The Mitsubishi 4D56DI cylinder head assembly 171228-1 fits engines used in light commercial vehicles and everyday work units that tend to clock high mileage. When the old head develops cracks around the seats or starts leaking compression, most workshops look for a part that sits correctly and doesn’t need too much prep. This head matches the 4D56DI layout, so the ports line up cleanly and the gasket surface holds its seal once torqued down.
Some technicians mention that a fresh head like this saves them time during reassembly, mainly because the mating surfaces come clean and don’t need extra shaping. Another thing worth noting is that the coolant passages follow the original flow path, which helps the engine settle into normal operating temperatures after the rebuild.
Practical Points for Buyers
- Fits the Mitsubishi 4D56DI engine layout
- Casting sits straight and supports proper sealing
- Helps restore compression when the old head is cracked or warped
- Suits routine workshop repairs and fleet maintenance
- Good option for engines that run daily and need stable performance
In most cases, this head works best for customers who want a clear, trouble-free replacement part. Once installed with the correct torque sequence and a fresh gasket, the engine usually starts to run smoother and picks up lost power.
Acme Impex checks each casting for machining accuracy and overall fit before dispatch. That way, you receive a part that supports a proper repair job and helps the engine return to steady, predictable performance.