2018-2019 Yamaha YZ450F YZ WR FX 450 Complete Engine Motor Rebuild Kit - BIG BORE 470cc

Fits:

2018-2019 YZ450F

2019-2020 WR450F

2019-2020 YZ450FX

Includes:

Big Bore 470cc Cylinder, Piston and Gaskets

Crankshaft assembly

Main bearings with seals

Gasket kit

Engine seal kit

Countershaft seal kit

Cylinder

Piston and rings

Timing chain

All valves

Water pump kit

Clutch plates

Oil filter

Air filter

Spark plug