Item fits Yamaha models:
YZ250 03~23
Item includes:
Crankshaft x 1
Replace OE P/N: 5UP-11400-10-00
66.4mm Cylinder x 1
Replace OE P/N: 5UP-11311-21-00
STD Bore Piston x 1
Replace OE P/N: 1P8-11631-00-A0
Crankshaft Bushing Bearing & Oil Seal Kit x 1
Replace OE P/N: 93102-28004-00, 93102-20485-00, 93306-37808-00
Complete Top & Bottom End Engine Gasket set x 1
Replace OE P/N: 5UP-11351-00-00, 93210-74316-00 , 93211-02703-00
Features:
★ Nikasil Plating Cylinder for bettering heat dissipation and low friction
★ Cylinder is machined and plating in Taiwan
★ Tighter tolerances for better Engine Performance
★ Better Heat Conductivity and low wear low friction
★ Much Durable
★ Taiwan Performance Products
★ World Class Needle Roller Bearing
★ Double Forged Japanese Alloy steel
★ Improved oil canal design for bettering lubrication
★ Shot Peening to improve fatigue durability
★ Direct Replacement Parts
★ Made In Taiwan
★ A390 aluminum alloy
★ Hard Anodize on crown and side for ignition and combustion resistance
★ MoS2 Skirt coating reduce friction and improve wear
★ RIK Piston Ring: most well-know manufacturer in the industry
★ Cast piston has super-high silicone content for additional strength
★ Dyno Proven: In-house Dyno test assures all design and manufacturing fulfill the market demand
★ Improve middle range to High RPM speed
