TOP END PISTON KIT 81-84 HONDA ATC R 250 72.0mm 2mm OVER VINTCO KTH21-2.0

VintCo top end piston kit KTH21-2.0 is a complete rebuild kit for 1981-1984 Honda ATC250R models, supplied in a nominal 72.0 mm size at +2.0 mm oversize. The kit includes a VintCo piston assembly with piston, rings, pin and clips, a wrist pin bearing, and a full top-end gasket set covering the head, base, intake and exhaust. Components are produced using modern materials and manufacturing methods for OEM-equivalent fitment and performance, and OEM part numbers are provided for fitment reference.

Features

• Complete top-end rebuild kit
• Includes piston, rings, pin and clips
• Includes wrist pin bearing
• Includes full top-end gasket kit
• Gasket kit includes head gasket, base gasket, intake gaskets and exhaust pipe gasket
• Intended to simplify top-end rebuild work
• Designed for OEM-equivalent or better fitment and performance
• Package price is 10% lower than purchasing the included items individually
• Additional size options are available

Specifications

• VintCo Part Number: KTH21-2.0
• Nominal kit size: 72.0 mm
• Oversize: +2.0 mm
• Piston diameter: 71.94 mm
• Piston clearance: 0.06 mm
• Piston type: Forged
• Piston coating: MOS2
• Piston manufacturing origin: Germany

Cross-Reference OEM Part Numbers

• Head gasket: 12254-961-010
• Base gasket: 12191-961-306
• Intake gasket: 14132-KAE-000
• Intake gasket: 14133-430-306
• Exhaust pipe gasket: 18291-961-306

Vehicle Fitments

• 1981 Honda ATC250R
• 1982 Honda ATC250R
• 1983 Honda ATC250R
• 1984 Honda ATC250R