Item fits Yamaha models: YZ125 1998~2001
Item includes:
ø54mm Cylinder x 1
Cylinder Head x 1
Head Stud x 5
Power Valve L/R x 1
Piston Kit with Riken Ring Kit x 1
Complete Top & Bottom End Engine Gasket Set x 1
Replace OE P/N:
Cylinder: 4SS-11311-10-00, 4SS-11311-30-00, 5ET-11311-00-00, 5ET-11311-11-00, 5HD-11311-00-00, 5HD-11311-11-00
Cylinder Head: 5MV-11111-00-00, 5UN-11111-00-00
Head Stud: 90116-08394-00
Piston Kit: 4XM-11631-20-D0, 4XM-11631-30-D0, 4XM-11631-20-C0, 4XM-11631-30-C0
Power Valve: 5HD-1131D-00-00, 5HD-1132D-00-00
Feature:
★ Nikasil Plating Cylinder for bettering heat dissipation and low friction
★ Cylinder is machined and plating in Taiwan
★ Cylinder Head is machined in Taiwan
★ Tighter tolerances for better Engine Performance
★ Better Heat Conductivity and low wear low friction
★ Much Durable
★ Hard Anodize on crown and side for ignition and combustion resistance
★ MoS2 Skirt coating reduce friction and improve wear
★ Riken Ring: most well-know manufacturer in the industry
★ Cast piston has super-high silicone content for additional strength
