This VintCo top-end piston kit is for 1976-1978 Yamaha RD400 models and is configured for a 65.0 mm bore with a +1.0 mm oversize. Offered at a limited-time price of $340.95, it provides a complete top-end rebuild package with two piston kits, top-end bearings and a full gasket set for the entire top end. The kit is manufactured using modern materials and production methods and is referenced to OEM part numbers for exact application; other size options are also available.

Features

• Complete top-end rebuild kit
• Includes two VintCo piston kits
• Each piston kit includes piston, rings, pin and clips
• Includes top-end bearings
• Includes a full top-end gasket kit
• Gasket set includes head gaskets, base gaskets, intake gaskets and exhaust gaskets
• Forged pistons with MoS2 coating for running-in
• Designed for OEM-equivalent fit and performance
• Kit price includes a 10% saving compared with purchasing the components individually

Specifications

• VintCo Part Number: KTY14-1.0
• Nominal bore size: 65.0 mm
• Oversize: +1.0 mm
• Piston diameter: 64.94 mm
• Piston clearance: 0.06 mm
• Piston construction: Forged
• Country of manufacture: Germany

Cross-Reference OEM Part Numbers

• Piston: 1A1-11638-00-00
• Head Gasket: 1A1-11181-00-00
• Base Gasket: 278-11351-11-00
• Intake Gasket: 87A-13621-00-00
• Exhaust Gasket: 3PA-14613-10-00
• Wrist Pin Bearing: 92046-1038

Vehicle Fitments

• 1976 Yamaha RD400
• 1977 Yamaha RD400
• 1978 Yamaha RD400