New Piston Kit 80.5Mm Compatible With Yamaha Xl 800 2000-2001 Xlt 800 2002-2004 Gp 800 Gp-R 800 Gp-R

CROSS REFERENCE PART NUMBERS:
• Yamaha 66E-11631-00-B0
• Yamaha 66E-11631-01-B0
• Yamaha 66V-11631-00-B0
• Pro-X 01.2518.050

ITEM SPECIFICATIONS:
• Component: Piston Kit (0.5mm Oversize)
• Piston Size: 80.5mm (0.5mm Oversize)
• Bore x Stroke: 80.0mm x 78mm (Standard)
• Displacement: 784cc (2-Cyl) / 1176cc (3-Cyl)
• Compression Ratio: 5.9:1
• Kit Contents: Piston, Ring, Wrist Pin, Circlips
• Material: Cast Aluminum Alloy Piston
• Engine: Liquid-Cooled 2-Stroke Power Valve Watercraft
• Model Years: 1998-2005 (various Yamaha PV watercraft models)

COMPATIBLE MODELS:
Yamaha 800cc Power Valve Watercraft:
• GP 800 (1998-2002) / GP-R 800 (2003-2005)
• XL 800 (2000-2001) / XLT 800 (2002-2004)
Yamaha 1200cc Power Valve Watercraft:
• GP-R 1200 (2000-2002) / XL 1200 (2001) / XL LTD 1200 (1999-2000)
• XLT 1200 (2002-2005) / XR 1800 1200 (2000-2001)

PRODUCT DETAILS:
High-quality oversize piston kit designed for the Yamaha liquid-cooled 2-stroke power valve engine family powering multiple watercraft models from the GP to XLT series. The 80.5mm piston restores proper clearance for ring seal and compression in 784cc twin-cylinder and 1176cc triple-cylinder power valve engines bored 0.5mm over. Includes cast aluminum alloy piston, precision-fitted piston ring, hardened wrist pin, and retaining circlips for Yamaha 800cc and 1200cc 2-stroke watercraft. CNC precision machined from premium cast aluminum alloy for consistent dimensions, reliable sealing, and dependable performance in watercraft 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