Top End Piston Kit 77-78 Yamaha YZ 400 86.5mm 1.5mm Over Vintco KTY15-1.5

VintCo top-end piston kit KTY15-1.5 is a complete rebuild kit for 1977-1978 Yamaha YZ400 models. It includes a forged piston kit with piston, rings, pin and clips, along with a top-end bearing and a full top-end gasket kit comprising the head gasket, base gaskets, intake gasket and exhaust gaskets. The kit is produced using modern materials and manufacturing techniques for OEM-equivalent or better fitment and performance, and is supplied as a complete package to simplify rebuild work.

Features

• Complete top-end rebuild kit
• Includes piston, rings, pin and clips
• Includes top-end bearing
• Includes full top-end gasket kit
• Head gasket included
• Base gaskets included
• Intake gasket included
• Exhaust gaskets included
• Produced using modern materials and manufacturing techniques
• Designed for OEM-equivalent or better fitment and performance
• Kit package is priced 10% lower than purchasing the components individually
• Additional size options are available

Specifications

• VintCo Part Number: KTY15-1.5
• Piston type: Forged
• Coating: MoS2
• Country of manufacture: Germany
• Piston size: 86.5 mm
• Oversize: +1.5 mm
• Piston measurement: 86.42 mm
• Clearance: 0.08 mm

Cross-Reference OEM Part Numbers

• 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