The VintCo KTH20-00 top end piston kit is a standard-size 54 mm rebuild kit for 1990-1991 Honda CR125 models. It is supplied as a complete top end set including the piston, rings, pin, clips, wrist pin bearing, and a full gasket and seal assortment for top end service. The kit is intended to simplify rebuild work while providing fitment matched to the listed OEM references, and the kit price is 10% lower than purchasing the included components individually. Additional size options are also available.

Features

• Complete top end rebuild kit
• Includes piston, rings, pin and clips
• Includes wrist pin bearing
• Includes head gasket
• Includes base gasket
• Includes water hose O-ring
• Includes intake gasket
• Includes exhaust pipe gasket
• Includes right powervalve cover gasket
• Includes left powervalve cover gasket
• Includes upper powervalve cover gasket
• Intended for straightforward top end rebuilds
• OEM-referenced fitment
• Kit price includes a 10% saving compared with individual component purchase
• Additional size options available

Specifications

• VintCo Part Number: KTH20-00
• Product type: Top End Piston Kit
• Standard size: 54 mm
• Piston diameter: 53.96 mm
• Piston clearance: 0.06 mm
• Piston construction: Forged
• Piston coating: MOS2 coated for break-in
• Country of manufacture: Germany

Cross-Reference OEM Part Numbers

• Head Gasket: 12251-KZ4-701
• Base Gasket: 12191-KZ4-620
• Water Hose O-ring: 91312-KE7-003
• Intake Gasket: 14132-KY4-970
• Exhaust Pipe Gasket: 18291-KZ4-700
• Right Powervalve Cover Gasket: 12108-KZ4-620
• Left Powervalve Cover Gasket: 12109-KZ4-620
• Upper Powervalve Cover Gasket: 12112-KZ4-620

Vehicle Fitments

• 1990 Honda CR125
• 1991 Honda CR125