Mitsubishi 4N15 Cylinder head semi assembled 171229-1
171229-1The Mitsubishi 4N15 cylinder head 171229-1 comes semi-assembled and suits workshops handling top-end repairs on Triton and related diesel models. The casting lines up well with the 4N15 layout, so the head sits correctly once installed. It helps replace cracked or overheated heads and brings the engine back to stable running. Mechanics often choose a semi-assembled head like this when they want control over the remaining parts during the rebuild.
The Mitsubishi 4N15 cylinder head (semi-assembled) 171229-1 works as a practical replacement for engines that start showing compression loss, rough idling, or signs of overheating damage. It fits the 4N15 diesel layout without complicated adjustments, which makes the job easier for a workshop or anyone rebuilding the top end at home.
Once you take it out of the box, the important surfaces look clean and ready for the remaining parts. Most technicians like this stage because it lets them choose the valves, springs, and other internals they trust. Another thing worth noting is how the coolant and intake passages line up neatly with the block, which helps avoid sealing issues later.
Some common situations where this head makes sense:
- The old head cracks between the valves
- Gasket failure starts causing coolant loss
- The engine overheats and the head warps
- The vehicle runs rough even after basic repairs
In most cases, replacing the head brings the engine back to steady power and smoother combustion. The 4N15 platform reacts well to a fresh head, especially when the block is still in good condition. This makes the semi-assembled version a practical pick for workshops handling multiple Triton engines or fleet vehicles that need quick turnaround.
Buying through Acme Impex gives you a part that has already passed checks for casting quality and fitment accuracy. It helps cut down troubleshooting time during installation and supports a cleaner rebuild.
If you want a cylinder head that sits well, works with the original setup, and supports a proper engine repair, this 4N15 semi-assembled head is a useful choice for your next job.