This VintCo top end piston kit is a complete rebuild set for 1976 Yamaha YZ125 and MX125 models, supplied with a forged piston, rings, pin, clips, top end bearing, and a full top-end gasket set including head, base, intake, and exhaust gaskets. It is intended for top end rebuild work and is produced using modern manufacturing methods for OEM-equivalent fit and performance. This kit is specified at 57.0 mm, +1.0 mm over.

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 gaskets
• Intended for cost-effective top end rebuilds
• OEM part number cross-reference included for fit verification
• Kit price includes a 10% saving compared with purchasing the components individually

Specifications

• VintCo Part Number: KTY01-1.0
• Product Type: Top End Piston Kit
• Piston type: Forged
• Country of manufacture: Germany
• Piston coating: MoS2
• Nominal piston size: 57.0 mm
• Oversize: +1.0 mm
• Referenced piston size: 56.94 mm
• Piston clearance: 0.06 mm

Cross-Reference OEM Part Numbers

• Piston: 537-11638-02-00
• Head gasket: 248-11181-00-00
• Base gasket: 1WE-11351-00-00
• Intake gasket: 3TT-13621-00-00
• Exhaust gasket: 3PA-14613-10-00
• Exhaust gasket: 248-14623-10-00
• Wrist pin bearing: 93310-216L2-00

Vehicle Fitments

• 1976 Yamaha YZ125
• 1976 Yamaha MX125