Top End Piston Kit 77-78 Yamaha YZ 125 56.5mm 0.5mm Over 2K6-11111-00-00 Vintco KTY02-0.5

Complete top end piston kit for Yamaha YZ125 models from 1977 to 1978, supplied with a piston, rings, pin, clips, top end bearing, and a full top-end gasket set covering the head, base, intake, and exhaust. This kit is intended for top end rebuilds and is manufactured using modern materials and production methods for OEM-equivalent or better fit and performance. It is sized at 56.5 mm with a 0.5 mm oversize and is priced at 10% less than purchasing the components individually.

Features

• Complete top end rebuild kit
• Includes piston, rings, pin and clips
• Includes top end bearing
• Includes full top-end gasket kit
• Covers head gasket, base gasket, intake gasket and exhaust gaskets
• Intended for straightforward and cost-effective rebuilds
• OEM cross-references provided for exact fitment
• Additional size options are available

Specifications

• VintCo Part Number: KTY02-0.5
• Piston size: 56.5 mm
• Oversize: +0.5 mm over
• Piston diameter: 56.44 mm
• Piston clearance: 0.06 mm
• Forged piston
• MoS2 coated for break-in
• Made in Germany

Cross-Reference OEM Part Numbers

• Complete kit: 2K6-11111-00-00
• Piston: 2K7-11636-01-00
• Head gasket: 2A6-11181-00-00
• Base gasket: 18G-11351-02-00
• Intake gasket: 3TT-13621-00-00
• Exhaust gasket: 3PA-14613-10-00
• Exhaust gasket: 248-14623-10-00
• Wrist pin bearing: 93310-216L2-00

Vehicle Fitments

• 1977 Yamaha YZ125
• 1978 Yamaha YZ125