Yamaha WR450F Engine Rebuild Kit 2004-2006 – Crankshaft, Piston & Cylinder (4-Stroke)

If you're rebuilding the engine on your 2004-2006 Yamaha WR450F, this kit has the core parts you need.

It includes a crankshaft, piston, and cylinder—everything to get the bottom and top end sorted.

It's an unbranded kit, but it's built to fit those years perfectly.

The engine is a 4-stroke, and this is a complete rebuild kit (part number KITWR450F).

All parts are brand new, never installed.

Comes with a 90-day warranty.

Whether you're refreshing a tired trail bike or building a race motor, this is a solid starting point.

Made for the WR450F, so you know it'll fit.