Top End Piston Kit 86-87 Yamaha YZ 125 57mm 1.0mm Over Vintco KTY66-1.0

VintCo top end piston kit for 1986-1987 Yamaha YZ125 models, supplied as a complete rebuild set with a 57 mm piston in +1.0 mm oversize. The kit includes the piston, rings, pin, clips, wrist pin bearing, and a full top-end gasket set. Components are produced using modern materials and manufacturing methods for OEM-equivalent fitment and performance, and the kit price is 10% lower than purchasing the items individually.

Features

• Complete top end rebuild kit
• Includes piston, rings, pin and clips
• Includes wrist pin bearing
• Includes head gasket set
• Includes base gasket
• Includes intake gasket
• Includes exhaust pipe gasket set
• Includes O-ring
• Includes holder gasket
• Includes power valve gasket
• Intended for Yamaha YZ125 top end rebuild work
• Designed for OEM-equivalent fitment and performance
• Kit pricing is 10% lower than buying the components individually

Specifications

• VintCo Part Number: KTY66-1.0
• Piston diameter: 57 mm
• Oversize: +1.0 mm
• Standard size: 56.94 mm
• Clearance: 0.06 mm
• Piston construction: Forged
• Piston coating: MOS2
• Country of manufacture: Germany

Cross-Reference OEM Part Numbers

• Head gasket: 93211-07720-00
• Head gasket: 93210-65721-00
• Base gasket: 1LX-11351-10-00
• Intake gasket: 4TP-13621-00-00
• Exhaust pipe gasket: 1LX-14613-01-00
• Exhaust pipe gasket: 93210-42728-00
• O-ring: 93210-270A8-00
• Holder gasket: 5X4-1131N-10-00
• Power valve gasket: 3LX-11993-01-00

Vehicle Fitments

• 1986 Yamaha YZ125
• 1987 Yamaha YZ125