YFZ450 Top End Rebuild Kit – Stock Bore 95mm Cylinder
YFZ450 Top End Rebuild Kit – Stock 95mm Cylinder & Forged Piston
Restore lost power with this complete top end rebuild kit for your carbureted YFZ450. Includes a stock bore 95mm cylinder and premium forged piston—perfect for trail or race builds.
What’s Included:
✅ 95mm standard bore cylinder
✅ 95mm Wiseco, Wossner, JE, or CP forged piston
✅ Nitrite-coated piston rings
✅ Chrome wristpin and circlips
✅ Top end gasket kit
✅ Multi-layer steel (MLS) head gasket
✅ Runs on pump or race gas
Fitment:
Fits all Yamaha YFZ450 carbureted models, 2004–2009
Warranty Info:
Includes a 1-year limited warranty against manufacturer defects.
Parts must be installed by a qualified, experienced mechanic.
Warranty claims require physical return of the part(s) for inspection. No photos, emails, or mechanic opinions accepted.
Improper installation, tuning, or misuse voids warranty.
We ship next day most of the time. Modquad parts are shipped Monday-Thursday. Engine Kits are 3-5 business days.
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