CROSS REFERENCE PART NUMBERS:
• Yamaha 17D-11631-90-00
• Pro-X 01.2412.C
ITEM SPECIFICATIONS:
• Component: Piston Kit (Size C, Standard Bore)
• Piston Size: 76.97mm (Size C)
• Bore x Stroke: 77.0mm x 53.6mm
• Displacement: 249cc
• Compression Ratio: 13.5:1
• Kit Contents: Piston, Rings, Wrist Pin, Circlips
• Material: Forged Aluminum Alloy Piston
• Engine: 249cc Liquid-Cooled 4-Stroke DOHC 5-Valve Single-Cylinder
• Model Years: 2012-2013
COMPATIBLE MODELS:
Yamaha YZ250F Motocross:
• YZ250F (2012-2013)
PRODUCT DETAILS:
Direct replacement piston kit engineered for the Yamaha YZ250F 249cc liquid-cooled 4-stroke DOHC 5-valve motocross bike from the 2012 through 2013 model years. The Size C piston at 76.97mm provides factory-specified piston-to-wall clearance within the standard 77mm cylinder bore for optimal ring seal and 4-stroke performance across the full RPM range. Kit comes complete with forged aluminum alloy piston, precision-fitted piston rings, hardened wrist pin, and retaining circlips for a comprehensive top-end rebuild on the Yamaha YZ250F. Precision machined on CNC equipment using premium forged aluminum alloy for reliable sealing and consistent power delivery in motocross and off-road racing conditions. The YZ250F features Yamaha's proven liquid-cooled DOHC engine with titanium valves and five-speed transmission providing competitive power for motocross racing. This piston kit ensures proper fit and dependable performance for all 2012-2013 Yamaha YZ250F motocross bikes.
PRODUCT NOTICE:
As a parts distributor we mostly sell aftermarket parts (any OEM parts would be noted as such). Aftermarket parts are not sourced from the original vehicle or equipment manufacturer, but are designed to function the same as - if not better than - the original. All parts sold are new.
WARNING - This product may expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov
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