VintCo top end piston kit KTY15-0.5 is a complete rebuild kit for 1977-1978 Yamaha YZ400 models. It includes a piston kit with piston, rings, pin and clips, a wrist pin bearing, and a full top-end gasket set covering the head, base, intake and exhaust. Manufactured using modern materials and manufacturing methods, this 85.5 mm (+0.5 mm over) kit is intended to provide OEM-level fitment and performance, with additional size options also available.

Features

• Complete top end kit for rebuild work
• Includes piston, rings, pin and clips
• Includes wrist pin bearing
• Includes full top-end gasket kit
• Includes head gasket
• Includes base gaskets
• Includes intake gasket
• Includes exhaust gaskets
• Kit price includes a 10% saving compared with purchasing the items individually

Specifications

• VintCo Part Number: KTY15-0.5
• Piston size: 85.5 mm
• Oversize: +0.5 mm
• Piston measurement: 85.42 mm
• Piston clearance: 0.08 mm
• Piston construction: Forged
• Piston coating: MoS2
• Piston manufacture: Made in Germany

Cross-Reference OEM Part Numbers

• Piston: 2K8-11636-00-00
• Head gasket: 500-11181-00-00
• Base gasket: 500-11351-09-00
• Base gasket: 1M2-11351-01-00
• Intake gasket: 8Y7-13556-01-00
• Exhaust gasket: 214-14613-09-00
• Exhaust gasket: 248-14623-10-00
• Wrist pin bearing: 93310-218A6-00

Vehicle Fitments

• 1977 Yamaha YZ400
• 1978 Yamaha YZ400