Isuzu 4JJ1 Cylinder Head assembly (incl cam and rockers) 908350 171016
171016The Isuzu 4JJ1 cylinder head assembly 908350 171016 comes ready with the camshaft and rocker arms already fitted. It sits as a direct replacement when the old head cracks, warps, or struggles to hold compression. Workshops like that it saves setup time because the timing parts already sit in place. It fits the 4JJ1 diesel layout correctly, so the engine runs steady once everything lines up. If you’re repairing an engine that works hard every day, this assembly helps you finish the job without extra complications.
The Isuzu 4JJ1 cylinder head assembly (908350) 171016 suits engines that start showing the usual issues—rough idle, overheating marks, or a head that simply can’t hold compression anymore. Since the camshaft and rockers come installed, most mechanics say the job feels smoother. You lift the old head off, prep the block, and this one sits right in its place without forcing you to set up every moving part from scratch.
The casting follows the 4JJ1 layout closely. Ports sit where they should, the chambers match the original shape, and the cam timing sits ready for alignment. In most cases, once the gasket surface is cleaned and the bolts go in with the right torque steps, the engine comes back to life without drama.
Another thing worth noting is how well it works for vehicles that see daily load—utes, commercial vans, and light trucks. When the old head gives trouble, this type of assembly usually helps avoid a full rebuild. It supports clean combustion and holds compression properly, which matters a lot for engines that run long hours.
What You Get
- A ready-to-fit cylinder head assembly for Isuzu 4JJ1
- Camshaft and rocker arms already sitting in place
- Correct fitment for 4JJ1 diesel engines
- A straightforward installation for workshops and service centres
- A practical fix for cracked, overheated, or worn-out heads
Most buyers choose this assembly when they want the engine running again without delays. It fits well, holds up under regular use, and gives the engine a fresh start once the other wear parts are checked.
If you're replacing a damaged 4JJ1 head, this assembly offers a clear and simple path back to proper engine performance. Acme Impex inspects casting quality and machining accuracy before packing, so you receive a head that sits right and works as expected.
You can order it directly and keep your repair moving without waiting for multiple parts or extra setup.