CROSS REFERENCE PART NUMBERS:
• Yamaha 3YF-11631-00-X0
• Yamaha 2C6-11631-00-X0
• Pro-X 01.2660.000
ITEM SPECIFICATIONS:
• Component: Piston Kit (Standard Bore)
• Piston Size: 100mm (Standard Bore)
• Bore x Stroke: 100.0mm x 84mm (Standard)
• Displacement: 660cc (Single-Cylinder)
• Compression Ratio: 9.1:1
• Kit Contents: Piston, Rings, Wrist Pin, Circlips
• Material: Forged Aluminum Alloy Piston
• Engine: Liquid-Cooled 4-Stroke 5-Valve SOHC
• Model Years: 2001-2007 (Yamaha Grizzly/Raptor/Rhino 660)
COMPATIBLE MODELS:
Yamaha 660cc ATVs:
• Grizzly 660 (2002-2006) — Hunter, LE, SE, Ducks, Wetland Editions
• Raptor 660 (2001-2005) — LE, SE Editions
Yamaha 660cc UTVs:
• Rhino 660 (2004-2007) — Hunter, SE, Ducks, Exploring Editions
PRODUCT DETAILS:
Direct replacement standard bore piston kit engineered for the Yamaha 660cc liquid-cooled 4-stroke 5-valve SOHC engine powering the Grizzly 660 utility ATV, Raptor 660 sport ATV, and Rhino 660 side-by-side UTV. The 100mm piston delivers proper clearance for reliable ring seal and consistent 4-stroke performance in the standard bore single-cylinder engine. Kit comes complete with forged aluminum alloy piston, precision-fitted piston rings, hardened wrist pin, and retaining circlips for a comprehensive top-end rebuild. Precision machined on CNC equipment using premium forged aluminum alloy for reliable sealing and consistent power delivery in demanding off-road ATV and UTV applications.
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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