This VintCo top end piston kit suits 1973-1975 Yamaha RD250 models and is supplied as a complete top end package with German-made forged pistons, associated gaskets and wrist pin bearings. It is a nominal 55 mm, 1.0 mm oversize kit, and the kit price includes a 10% reduction compared with buying the individual items separately.

Features

• Complete top end piston kit for Yamaha RD250 models
• MOS2-coated pistons for running-in
• Includes pistons, gasket set and wrist pin bearings

Specifications

• VintCo Part Number: KTY47-1.0
• Piston construction: Forged
• Nominal piston size: 55 mm
• Actual piston diameter: 54.93 mm
• Oversize: 1.0 mm over
• Piston clearance: 0.07 mm
• Cylinder head gaskets included: 2
• Cylinder base gaskets included: 2
• Reed valve gaskets included: 2
• Exhaust pipe gaskets included: 2
• Wrist pin bearings included: 2

Cross-Reference OEM Part Numbers

• Cylinder head gasket OEM part number: 280-11181-01-00
• Cylinder base gasket OEM part number: 278-11351-11-00
• Reed valve gasket OEM part number: 87A-13621-00-00
• Exhaust pipe gasket OEM part number: 3PA-14613-10-00

Vehicle Fitments

• 1973 Yamaha RD250
• 1974 Yamaha RD250
• 1975 Yamaha RD250