VintCo top end piston kit KTY14-00 is a complete rebuild kit for Yamaha RD400 models from 1976 to 1978, supplied in a 64.0 mm standard bore configuration. It includes two VintCo piston kits with pistons, rings, pins and clips, together with top end bearings and a full top-end gasket set covering the head, base, intake and exhaust. The components are produced with modern materials and manufacturing techniques to support OEM-level fitment and performance. Listed price: $340.95 as a limited-time offer.

Features

• Complete top end rebuild kit
• Includes two VintCo piston kits
• Includes pistons, rings, pins and clips
• Includes top end bearings
• Includes a full top-end gasket kit
• Gasket set covers the head, base, intake and exhaust for the entire top end
• Suited to standard-bore rebuilds
• Pistons are coated to assist break-in
• OEM part number cross-references provided for exact fitment verification
• Kit pricing includes a 10% reduction compared with purchasing the components individually
• Additional size options are available

Specifications

• VintCo Part Number: KTY14-00
• Standard bore: 64.0 mm
• Piston diameter: 63.94 mm
• Piston clearance: 0.06 mm
• Piston construction: Forged
• Piston coating: MoS2
• Piston manufacturing origin: Germany

Cross-Reference OEM Part Numbers

• Piston: 360-11631-03-96
• 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