Top End Piston Kit 90-90 Yamaha YZ125 56.02mm Standard Vintco KTY30-00

VintCo KTY30-00 is a complete top end piston kit for the 1990 Yamaha YZ125, supplied for a standard 56.02mm application. The kit includes a piston, rings, pin and clips, a wrist pin bearing, and a full top-end gasket set for the head, base, intake, exhaust pipe, O-ring, holder and power valve positions. It is intended to make top end rebuilds straightforward and cost-effective, using modern materials and manufacturing methods to provide OEM-equivalent or better fit and performance, with kit pricing 10% lower than purchasing the parts individually.

Features

• Complete top end rebuild kit
• Includes piston, rings, pin and clips
• Includes wrist pin bearing
• Includes head gasket, base gasket, intake gasket and exhaust pipe gasket
• Includes O-ring, holder gasket and power valve gasket
• Intended to simplify rebuild work
• Uses modern materials and manufacturing techniques
• Provides OEM-equivalent or better fit and performance
• Piston coating assists break-in
• Kit pricing is 10% lower than buying the items individually

Specifications

• VintCo Part Number: KTY30-00
• Standard size: 56.02mm
• Standard measurement: 55.96mm
• Clearance: 0.06mm
• Piston construction: Forged
• Piston coating: MOS2
• Country of manufacture: Germany

Cross-Reference OEM Part Numbers

• Head gasket: 93211-07720-00
• Head gasket: 93210-657-21-00
• Base gasket: 93210-657-21-00
• Intake gasket: 80L-13621-01-00
• Exhaust pipe gasket: 3R3-14613-00-00
• Exhaust pipe gasket: 93210-45742-00
• O-ring: 93210-270A8-00
• Holder gasket: 5X4-1131N-10-00
• Power valve gasket: 3JD-1199310-00

Vehicle Fitments

• 1990 Yamaha YZ125