This VintCo piston kit is a forged replacement piston assembly for Yamaha YZ250 1980-1981 and IT250 1981 models, sized at 71.0 mm and 1.0 mm oversize. Designed for vintage 2-stroke engine rebuilds, it includes the piston, rings, pin and clips, and is manufactured in Germany using modern materials and production methods for OEM-style fit and performance.

Features

• Complete piston kit includes piston, rings, pin and clips
• Suitable for vintage 2-stroke engine rebuilds and replacement work
• Forged piston construction
• MoS2 coated for break-in
• Wrist pin bearing sold separately
• OEM part number reference provided to confirm correct fit
• Additional size options are available separately

Specifications

• VintCo Part Number: PSY09-1.0
• Piston size: 71.0 mm
• Oversize: +1.0 mm
• Measured size: 70.94 mm
• Clearance: 0.06 mm
• Country of manufacture: Germany

Cross-Reference OEM Part Numbers

• 3R4-11636-00-00

Vehicle Fitments

• 1980 Yamaha YZ250
• 1981 Yamaha YZ250
• 1981 Yamaha IT250