Engine Parts
Engine Kit Yamaha
Part # 0903-1021
$1183.95
NY: 0
National: 4
- —Complete engine rebuild kit
- —Includes crankshaft, piston kit, complete engine gasket kit with oil seals, main bearings and seals, water pump rebuild kit, transmission bearings, countershaft bushing/seal kit, cam chain and counter balancer bearings when applicable
Calculated shipping at checkout
30-day returns on unused parts
Ships in 1–3 business days
Specifications
FeaturesStandard Compression Piston
UnitsKit
Displacement450 cc
Product NameRebuild Kit
TypeEngine
Engine Type4-Stroke
Riding StyleOff-Road
Weight15.3 lbs
Dimensions (L x W x H)17.63" x 11.89" x 7.55"
Fits These Vehicles (3)
YZ450F2005
YZ450F2004
YZ450F2003
Not sure it fits? Call our Harley techs at 607-654-7431.





















































































