Mitsubishi Triton Challenger 4D56U Head Bolts

Most of our heads arrive assembled, with the valves, springs and seals already installed. Depending on the engine, the original camshaft and rocker gear may need to be transferred to the new head. The product’s ‘What’s Included’ section has the application-specific details.

The exact contents depend on the engine and product selected. Most complete cylinder-head packages include an assembled head, VRS gasket set and new head bolts. Some applications require the original camshaft and rockers to be reused. Where an MLS gasket is required, we supply the thickest available specification. Gasket-set-only packages include the head gasket, manifold gaskets, valve stem seals, rocker cover gasket, head bolts and required O-rings. Always check the ‘What’s Included’ section for the item you are ordering.

Our cylinder heads come with a 12-month warranty covering manufacturing defects. We select our suppliers carefully and stand behind the quality of the products we sell.

Start with the ‘Fits’ section, which lists the compatible make, model, year and engine code. If you are not completely sure, send us your VIN before placing the order and we can check the application for you.

We supply customers Australia-wide, with free delivery Australia-wide and express shipping available. Orders may be dispatched from Perth or the Melbourne warehouse, and most deliveries arrive within 2–5 business days.

No. Our heads are manufactured to OEM specifications and supplied ready for installation, so additional machining should not normally be necessary.