VintCo top end piston kit for Yamaha YZ465 models from 1980 and 1981, supplied as a complete rebuild package with piston, rings, pin, clips, wrist pin bearing and a full top-end gasket set including head, base, intake and exhaust gaskets. The kit is produced using modern materials and manufacturing techniques for OEM-equivalent or better fit and performance, providing a straightforward and cost-effective top-end rebuild.

Features

• Complete top-end rebuild kit
• Includes piston, rings, pin and clips
• Includes wrist pin bearing
• Includes head gasket, base gasket, intake gasket and exhaust gasket
• Intended for Yamaha YZ465 top-end rebuilds
• MoS2-coated piston for running-in
• Base gasket installation requires silicone
• Kit pricing includes a 10% saving compared to purchasing the components individually
• Additional size options are available

Specifications

• VintCo Part Number: KTY16-1.0
• Nominal size: 86.0 mm
• Oversize: +1.0 mm
• Piston size: 85.92 mm
• Clearance: 0.08 mm
• Piston construction: Forged
• Country of manufacture: Germany

Cross-Reference OEM Part Numbers

• Piston: 4V4-11638-00-00
• Head gasket: 3R5-11181-00-00
• Base gasket: 40T-11351-01-00
• Intake gasket: 80L-13621-01-00
• Exhaust gasket: 3R4-14613-00-00
• Wrist pin bearing: 93310-418E9-00

Vehicle Fitments

• 1980 Yamaha YZ465
• 1981 Yamaha YZ465