New Piston Kit 79.9Mm A Grade Compatible With Yamaha Xlt 1200 2002-2005 Gp-R 1200 Xl 1200 Xl Ltd

CROSS REFERENCE PART NUMBERS:
• Yamaha 66E-11631-00-A0
• Yamaha 66E-11631-01-A0
• Yamaha 66V-11631-00-A0
• Pro-X 01.2518.A

ITEM SPECIFICATIONS:
• Component: Piston Kit (Standard Bore A Grade)
• Piston Size: 79.9mm (Standard Bore A Grade)
• 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:
Precision-engineered standard bore piston kit for the Yamaha 2-stroke power valve watercraft engine found in the GP-R 1200, XLT 1200, XL LTD, and XR 1800 models. The 79.9mm A grade piston delivers factory-specified clearance within the standard bore for optimal compression and ring seal across 800cc and 1200cc PV models. Complete kit with cast aluminum alloy piston, precision-fitted piston ring, hardened wrist pin, and retaining circlips for all listed watercraft applications. Premium cast aluminum alloy construction and CNC precision machining ensure consistent dimensions and reliable performance for watercraft operating conditions.

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