This VintCo piston kit is designed for 1973-1975 Yamaha 350R5 models and suits vintage 2-stroke engine rebuilds requiring a 65.5 mm piston at +1.5 mm oversize. The kit includes one complete piston assembly with piston, rings, pin and clips. It is manufactured using modern materials and production methods for OEM-equivalent fitment and performance. A wrist pin bearing is available separately, and additional size options are available.

Features

• Complete piston assembly for Yamaha 350R5 applications
• Includes 1 piston, rings, pin and clips
• Suitable for vintage 2-stroke engine rebuilds
• MoS2 coating for break-in
• Wrist pin bearing sold separately
• Additional size options available

Specifications

• VintCo Part Number: PSY13-1.5
• Piston type: Forged
• Country of manufacture: Germany
• Oversize: +1.5 mm
• Piston size: 65.5 mm
• Measured size: 65.43 mm
• Clearance: 0.07 mm

Vehicle Fitments

• 1973 Yamaha 350R5
• 1974 Yamaha 350R5
• 1975 Yamaha 350R5