TOP END PISTON KIT 79-80 YAMAHA YZ IT 250 71.0mm 1.0mm OVER VINTCO KTY11-1.0

Complete top end piston kit for 1979 Yamaha YZ250 and 1979-1980 Yamaha IT250 models, supplied for 71.0 mm bore applications at 1.0 mm oversize. The kit includes a forged VintCo piston with rings, pin and clips, a top end bearing, and a full top-end gasket set comprising head, base, intake and exhaust gaskets. Components are manufactured using modern materials and production methods for OEM-equivalent or better fit and performance, and the kit is priced at 10% less than purchasing the included items separately.

Features

• Complete top end rebuild kit
• Includes piston, rings, pin and clips
• Includes top end bearing
• Includes head gasket, base gasket, intake gasket and exhaust gasket
• Manufactured with modern materials and manufacturing techniques for OEM-equivalent or better fit and performance
• Additional size options are available
• Kit pricing includes a 10% reduction compared with buying the components individually

Specifications

• VintCo Part Number: KTY11-1.0
• Item Category: Top End Piston Kits
• Nominal bore size: 71.0 mm
• Oversize: +1.0 mm
• Piston diameter: 70.94 mm
• Piston clearance: 0.06 mm
• Piston construction: Forged
• Piston coating: MoS2
• Country of manufacture: Germany

Cross-Reference OEM Part Numbers

• Piston: 2K7-11638-01-96
• Head gasket: 1W3-11181-00-00
• Base gasket: 2K7-11351-01-00
• Intake gasket: 80L-13621-01-00
• Wrist pin bearing: 93310-218A6-00

Vehicle Fitments

• 1979 Yamaha YZ250
• 1979 Yamaha IT250
• 1980 Yamaha IT250