Rareelectrical 80.5Mm Piston Kit Compatible With Yamaha Gp-R 1200

APPLICATIONS:
Yamaha GP 800 Personal Watercraft (1998-2002) / GP-R 800 (2003-2005)
Yamaha XL 800 (2000-2001) / XLT 800 (2002-2004)
Yamaha GP-R 1200 (2000-2002) / XL 1200 (2001) / XL LTD 1200 (1999-2000)
Yamaha XLT 1200 (2002-2005) / XR 1800 1200 (2000-2001)
Engine: 784cc Liquid-Cooled 2-Stroke Power Valve 2-Cylinder / 1176cc 3-Cylinder
Bore x Stroke: 80.0mm x 78mm
Component: Piston Kit (0.5mm Oversize, 80.5mm)

REPLACES PART NUMBERS:
Yamaha 66E-11631-00-B0
Yamaha 66E-11631-01-B0
Yamaha 66V-11631-00-B0
Pro-X 01.2518.050

SPECIFICATIONS:
Type: 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 Includes: Piston, Ring, Wrist Pin, Circlips
Material: Cast Aluminum Alloy Piston
Engine: Liquid-Cooled 2-Stroke Power Valve Watercraft
Fitment: Direct Drop-In Replacement

PRODUCT DETAILS:
Precision-engineered oversize 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 80.5mm piston delivers proper clearance within a cylinder bored 0.5mm over standard 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.

Always verify your part number before purchasing to confirm proper fitment.