This VintCo piston kit is designed for Yamaha DT400 models from 1975-1978 and Yamaha MX400 models from 1975-1976. Intended for vintage 2-stroke engine rebuilds, it uses modern materials and manufacturing techniques to provide OEM-equivalent fitment and performance. The kit includes the piston, rings, pin and clips, while the wrist pin bearing is available separately.

Features

• Complete piston kit with piston, rings, pin and clips
• Suitable for vintage 2-stroke engine rebuilds
• Forged piston construction
• Coated for break-in
• Wrist pin bearing sold separately
• Additional size options available
• Designed for OEM-equivalent fitment and performance

Specifications

• VintCo Part Number: PSY14-1.5
• Piston size: 86.5 mm
• Oversize: +1.5 mm
• Piston measurement: 86.42 mm
• Clearance: 0.08 mm
• Coating: MoS2
• Country of manufacture: Germany

Vehicle Fitments

• 1975 Yamaha DT400
• 1975 Yamaha MX400
• 1976 Yamaha DT400
• 1976 Yamaha MX400
• 1977 Yamaha DT400
• 1978 Yamaha DT400