VintCo KTH31-1.0 is a complete top end piston kit for 1989-1991 Honda CR500 models, supplied for 90.0 mm bore applications at +1.0 mm oversize. The kit includes a piston assembly with piston, rings, pin and clips, a wrist pin bearing, and a full top-end gasket set comprising the head, base, intake and exhaust pipe gaskets. The forged piston is made in Germany, finished with an MOS2 coating for initial running-in, and manufactured using modern materials and production techniques for OEM-equivalent or better fitment and performance.

Features

• Complete top end rebuild kit
• Includes piston, rings, pin and clips
• Includes wrist pin bearing
• Includes head gasket
• Includes base gasket
• Includes intake gasket
• Includes exhaust pipe gasket
• OEM part numbers provided for exact fitment
• Kit price includes a 10% reduction compared with purchasing the components individually
• Additional size options are available

Specifications

• VintCo Part Number: KTH31-1.0
• Product type: Top End Piston Kit
• Nominal bore size: 90.0 mm
• Piston size: 89.92 mm
• Oversize: +1.0 mm
• Piston clearance: 0.06 mm
• Piston construction: Forged
• Piston coating: MOS2
• Country of manufacture: Germany

Cross-Reference OEM Part Numbers

• Head gasket: 12254-ML3-680
• Base gasket: 12191-MAC-680
• Intake gasket: 14132-KA5-306
• Exhaust pipe gasket: 19291-KA5-306

Vehicle Fitments

• 1989 Honda CR500
• 1990 Honda CR500
• 1991 Honda CR500