New Piston Kit 101Mm Compatible With Yamaha Rhino 660 2004-2007 Grizzly 660 2002-2006 Raptor 660

CROSS REFERENCE PART NUMBERS:
• Yamaha 3YF-11638-00-00
• Yamaha 2C6-11638-00-00
• Pro-X 01.2660.100

ITEM SPECIFICATIONS:
• Component: Piston Kit (1mm Oversize)
• Piston Size: 101mm (1mm Oversize)
• 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:
Premium oversize piston kit built for the Yamaha 660cc liquid-cooled 4-stroke engine featuring the unique 5-valve SOHC cylinder head design used in the Grizzly, Raptor, and Rhino 660 platforms. The 101mm forged piston provides optimal clearance for proper ring seal and compression in cylinders bored 1mm over standard bore applications. Complete kit includes forged aluminum alloy piston, precision-fitted piston rings, hardened wrist pin, and retaining circlips for a full top-end rebuild of the Yamaha 660cc engine. CNC machined from premium forged aluminum alloy for consistent dimensional accuracy and reliable long-term performance across all Yamaha 660 ATV and UTV models.

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