This VintCo piston kit is a complete replacement piston assembly for Yamaha RD250 models from 1973 to 1975. Intended for vintage 2-stroke engine rebuilds, it includes the piston, rings, pin and clips in a single kit, with a wrist pin bearing available separately. The piston is produced using modern manufacturing methods for OEM-equivalent fitment and performance.

Features

• Complete piston assembly
• Includes piston, rings, pin and clips
• Suitable for vintage 2-stroke engine rebuilds
• Wrist pin bearing sold separately
• MoS2 coating for running-in

Specifications

• VintCo Part Number: PSY17-0.5
• Forged piston
• Made in Germany
• Nominal size: 54.5 mm
• Oversize: +0.5 mm
• Piston diameter: 54.43 mm
• Clearance: 0.07 mm

Vehicle Fitments

• 1973 Yamaha RD250
• 1974 Yamaha RD250
• 1975 Yamaha RD250