This top end piston kit is for the 1980 Yamaha YZ125 and is supplied in a standard bore 56 mm configuration for top-end rebuild work. The kit includes a VintCo piston kit with piston, rings, pin and clips, a top end bearing, and a full top-end gasket kit with head, base, intake and exhaust gaskets. Components are produced using modern materials and manufacturing methods for OEM-level fitment and performance. The kit price represents a 10% saving compared with purchasing the components individually, and other size options are also available.

Features

• Complete top end rebuild kit
• Includes piston, rings, pin and clips
• Includes top end bearing
• Includes head gasket
• Includes base gasket
• Includes intake gasket
• Includes exhaust gasket
• Forged piston
• MoS2 coated for running-in
• Intended for standard bore applications
• OEM part numbers provided for fitment reference

Specifications

• VintCo Part Number: KTY06-00
• Application: Yamaha YZ125 top end piston kit
• Bore size: 56 mm
• Piston diameter: 55.94 mm
• Piston clearance: 0.06 mm
• Piston manufacturing origin: Germany

Cross-Reference OEM Part Numbers

• Piston: 537-11631-02-96
• Head gasket: 3R3-11181-00-00
• Base gasket: 3R3-11351-01-00
• Intake gasket: 3R3-14613-00-00
• Exhaust gasket: 3R3-14613-00-00
• Wrist pin bearing: 93310-216L2-00

Vehicle Fitments

• 1980 Yamaha YZ125