Description

The Yamaha YFZ450R Master Engine Rebuild Kit supplies a wide range of essential parts to refresh and strengthen a worn engine. It addresses wear in the bottom end, top end, valvetrain, timing, and sealing systems in one set.

REV6 inspects each component for correct fit and durability before it ships. A 1-year parts warranty supports your rebuild through every included piece.

THIS KIT INCLUDES

• Cylinder
• Crankshaft
• Crankshaft main bearings
• STD forged piston kit
• Complete gasket kit
• Intake valves set
• Exhaust valves set
• Timing chain
• Oil seal kit
• Transmission bearings kit
• Water pump rebuild kit

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Yamaha YFZ450R complete engine rebuild kit

LEARN MORE & GET SUPPORT

See coverage details on our warranty policy, read rebuild insight on the REV6 blog, find answers in the FAQ center, or contact our team for support.

FITMENT

Yamaha YFZ450R
2014–2026

TAKE ACTION
When engine wear has added up, this master rebuild kit gives you most major internals with REV6 quality. Ships nationwide—add it to your cart and tackle the rebuild with confidence.

Your service matters to us—veterans receive special pricing at REV6.