This top end piston kit is designed for the 1981 Yamaha YZ125 and provides the components required for a top-end rebuild in one package. The kit includes a VintCo piston kit with piston, rings, pin and clips, together with a top end bearing and a full top-end gasket set covering the head, base, intake and exhaust. Components are manufactured using modern materials and production methods for OEM-equivalent fitment and performance.

Features

• Complete top-end rebuild kit
• Includes piston, rings, pin and clips
• Includes top end bearing
• Includes head gaskets, base gasket, intake gasket and exhaust gasket
• Intended for straightforward and cost-effective rebuild work
• Bundle price reflects a 10% reduction compared with purchasing components individually
• Additional size options are available

Specifications

• VintCo Part Number: KTY07-0.5
• Product type: Top End Piston Kit
• Piston size: 56.5 mm
• Oversize: +0.5 mm
• OE piston size reference: 56.44 mm
• Piston clearance: 0.06 mm
• Piston construction: Forged
• Piston coating: MoS2
• Country of manufacture: Germany

Cross-Reference OEM Part Numbers

• Piston: 537-11636
• Head gasket: 93210-69434-00
• Head gasket: 93211-19413-00
• Base gasket: 4V2-11352-01-00
• Intake gasket: 3R3-13621-01-00
• Exhaust gasket: 3R3-14613-00-00
• Wrist pin bearing: 93310-216L2-00

Vehicle Fitments

• 1981 Yamaha YZ125