PISTON KIT 72-80 YAMAHA DT 2 3 IT MX TY YZ 250 71.0mm 1.0mm OVER VINTCO PSY02-1.0

VintCo Forged Piston Kit - Yamaha 250cc (Oversize)

This VintCo piston kit is a high-quality replacement designed for vintage Yamaha 250cc two-stroke motorcycles. Engineered for OEM-equivalent fit and performance, this kit is ideal for restoring or rebuilding your classic Yamaha engine.

Key Features:

• Forged piston construction for enhanced durability and performance.
• Includes piston, rings, wrist pin, and clips for a complete replacement.
• MoS2 coating aids in the crucial running-in period.
• Designed to match original equipment specifications for seamless integration.
• Nominal piston size of 71.0 mm with a +1.0 mm oversize.
• Precision measured at 70.94 mm with a clearance of 0.06 mm.
• Manufactured in Germany to exacting standards.
• Wrist pin bearing is available separately to complete your rebuild.
• OEM part numbers are provided to help verify exact fitment.

Specifications:

• Product Type: Piston Kit
• Piston Construction: Forged
• Coating: MoS2
• Nominal Piston Size: 71.0 mm
• Oversize: +1.0 mm
• Actual Piston Measurement: 70.94 mm
• Clearance: 0.06 mm
• Country of Manufacture: Germany

Cross-Reference OEM Part Numbers:

• 2K7-11638-01-00
• 509-11638-01-00