CROSS REFERENCE PART NUMBERS:
• Yamaha 5TG-11631-00-00
• Yamaha 5TG-11631-10-00
• Yamaha 5TG-11631-11-00
• Yamaha 5TG-11631-12-00
• Pro-X 01.2435.C
ITEM SPECIFICATIONS:
• Component: Piston Kit (Size C, Standard Bore)
• Piston Size: 94.98mm (Size C)
• Bore x Stroke: 95.0mm x 63.4mm
• Displacement: 449cc
• Kit Contents: Piston, Rings, Wrist Pin, Circlips
• Material: Forged Aluminum Alloy Piston
• Engine: 449cc Liquid-Cooled 4-Stroke DOHC 5-Valve Single-Cylinder
• Model Years: 2004-2013 (YFZ450), 2009-2025 (YFZ450R), 2008-2011 (YFZ450X)
COMPATIBLE MODELS:
Yamaha YFZ450 / YFZ450R / YFZ450X:
• Yamaha YFZ450 (2004-2013)
• Yamaha YFZ450R (2009-2025)
• Yamaha YFZ450X (2008, 2010-2011)
PRODUCT DETAILS:
This piston kit is a direct replacement for the Yamaha YFZ450 sport ATV 2004-2013, YFZ450R 2009-2025, and YFZ450X 2008-2011 with the 449cc liquid-cooled 4-stroke DOHC 5-valve single-cylinder engine. The 94.98mm Size C piston is designed for the standard 95mm cylinder bore providing factory-specified piston-to-wall clearance for optimal ring seal and compression in the high-performance YFZ450 engine. Each kit includes forged aluminum alloy piston, precision-fitted piston rings, hardened wrist pin, and retaining circlips for all Yamaha YFZ450 YFZ450R and YFZ450X applications. Manufactured using premium forged aluminum alloy and precision machined on CNC equipment for consistent dimensions and reliable performance in sport ATV and quad racing conditions. The YFZ450R features a fuel-injected DOHC engine with five titanium valves and five-speed transmission for competitive sport ATV racing. Installs directly into the standard 95mm cylinder bore for piston replacement or top-end rebuild on all YFZ450 YFZ450R and YFZ450X sport ATVs.
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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