Mitsubishi 4M41 DI Cylinder Head assembly (without cam and rockers) 171223-1
171223-1The Mitsubishi 4M41 DI cylinder head assembly 171223-1 fits the 4M41 diesel engine used in many utility and SUV models. It sits in place like the original head and works well for engines facing overheating, cracking, or compression loss. Mechanics pick this assembly when they want something that sits straight on the block and lines up with factory ports without fuss. It comes as a clean casting, ready for top-end rebuilding. Good choice if you're bringing a tired 4M41 engine back to proper running condition.
The cylinder head assembly fits the Mitsubishi 4M41 DI engine 171223-1, a common workhorse in many diesel vehicles. Most people install a new head when the old one cracks around the waterways or loses compression on one or two cylinders. This assembly sits on the block cleanly, and the bolt holes line up without needing extra adjustment. That’s the part most technicians appreciate because it saves time during a rebuild.
Another thing worth noting—this casting keeps the original 4M41 port shape, so airflow feels familiar once the engine warms up. Anyone repairing a 4M41 knows how important that is, especially when the vehicle has seen long-distance towing or heavy-load driving.
Some customers use it during a scheduled overhaul, while others replace the head after an overheating incident. In most cases, this assembly supports a straightforward rebuild where you fit your valves, springs, and other internals. The surface sits flat, which helps avoid sealing issues later.
Why Buyers Choose This 4M41 Cylinder Head Assembly
- Fits the Mitsubishi 4M41 DI diesel engine without modification
- Clean casting that sits flat on the block
- Port layout matches factory design for stable engine behavior
- Works well for engines with cracked heads, gasket failures, or uneven compression
- Useful for workshops handling regular 4M41 repairs or fleet maintenance
Workshops often prefer this assembly because it holds up well when paired with good internals and correct torque settings. If you’re rebuilding a 4M41 for daily use, towing, or commercial driving, this head gives you a dependable base to start from.
At Acme Impex, every cylinder head passes fitment checks and casting inspections before shipping. You get a part that supports consistent engine work, whether you’re a mechanic or a vehicle owner looking to restore smooth running.
If you need a cylinder head assembly for the Mitsubishi 4M41 DI, this option makes the rebuild task simpler and brings the engine back to steady performance without unnecessary complications.