This VintCo top-end piston kit is a complete rebuild kit for the 1980 Yamaha YZ125, supplied in a 56.5 mm size with a +0.5 mm oversize. It includes the piston kit, top-end bearing and a full top-end gasket set to support a straightforward and cost-effective rebuild, with components produced using modern materials and manufacturing techniques for OEM-equivalent or better fit and performance.

Features

• Complete top-end rebuild kit
• Includes piston, rings, pin and clips
• Includes top-end bearing
• Includes full top-end gasket kit
• Gasket kit includes head gasket, base gasket, intake gasket and exhaust gasket
• Intended to help complete a rebuild easily and cost-effectively
• Kit price includes a 10% saving compared with buying the parts individually
• More size options are available

Specifications

• VintCo Part Number: KTY06-0.5
• Product type: Top End Piston Kit
• Piston size: 56.5 mm
• Oversize: +0.5 mm
• Piston diameter: 56.44 mm
• Piston clearance: 0.06 mm
• Piston construction: Forged
• Piston manufacture: Made in Germany
• Piston coating: MoS2 coated for break-in

Cross-Reference OEM Part Numbers

• Piston: 537-11636-02-00
• 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