New Piston Kit Size A 96.95Mm Compatible With Yamaha Yz450f 2010 2011 2012 2013 449Cc Liquid-Cooled

CROSS REFERENCE PART NUMBERS:
• Yamaha 33D-116A0-00-00
• Yamaha 33D-11631-00-00
• Pro-X 01.2440.A

ITEM SPECIFICATIONS:
• Component: Piston Kit (Size A, Standard Bore)
• Piston Size: 96.95mm (Size A)
• Bore x Stroke: 97.0mm x 60.8mm
• Displacement: 449cc
• Compression Ratio: 12.5:1
• Kit Contents: Piston, Rings, Wrist Pin, Circlips
• Material: Forged Aluminum Alloy Piston
• Engine: 449cc Liquid-Cooled 4-Stroke DOHC 4-Valve Single-Cylinder
• Model Years: 2010-2013 (YZ450F)

COMPATIBLE MODELS:
Yamaha YZ450F:
• YZ450F (2010-2013)

PRODUCT DETAILS:
Direct replacement piston kit engineered for the Yamaha YZ450F 449cc liquid-cooled 4-stroke DOHC 4-valve motocross bike 2010-2013 with the standard 97mm cylinder bore. The Size A piston at 96.95mm provides factory-specified piston-to-wall clearance within the standard 97mm 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 YZ450F. 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 YZ450F 2010-2013 features Yamaha's redesigned liquid-cooled DOHC engine with four titanium valves providing competitive power for professional motocross racing. This piston kit ensures proper fit and dependable performance for all 2010-2013 YZ450F motocross bikes with the 449cc single-cylinder engine.

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