CROSS REFERENCE PART NUMBERS:
• Yamaha 6ET-11631-00-B0
• Yamaha 6ET-11631-01-B0
• Yamaha 6S5-11631-10-B0 (Cross Reference)
• Pro-X 01.2909.C
ITEM SPECIFICATIONS:
• Component: Piston Kit (Standard Bore C Grade)
• Piston Size: 85.97mm (C Grade)
• Bore x Stroke: 86.0mm x 78mm (Standard)
• Displacement: 1812cc (4-Cylinder)
• Compression Ratio: 11.0:1
• Kit Contents: Piston, Rings, Wrist Pin, Circlips (Per Cylinder)
• Material: Forged Aluminum Alloy Piston
• Engine: Liquid-Cooled 4-Stroke DOHC (EFI)
• Model Years: 2008-2025 (Yamaha FX/FZ/GP/AR/SX/195/255/275)
COMPATIBLE MODELS:
Yamaha 1812cc Personal Watercraft:
• FX Cruiser SHO/SVHO / FX SHO / FX SVHO (2008-2025)
• FZR / FZS (2009-2016) / GP (2017-2018) / GP-R / GP-R SVHO (2019-2025)
Yamaha 1812cc Jet Boats:
• 195 FSH / 195S / 255 FSH / 255XD / 255XE / 275E / 275SD / 275SE (2013-2025)
• AR 192 / AR 195 / SX 192 / SX 195 (2013-2025)
PRODUCT DETAILS:
This standard bore C grade piston kit is designed for the Yamaha 1812cc liquid-cooled 4-stroke DOHC inline 4-cylinder EFI engine used across the FX SHO, FX SVHO, FZR, FZS, GP, and GP-R SVHO personal watercraft plus the AR 195, SX 195, and 255/275 series jet boat models. The 85.97mm C grade piston provides precise piston-to-wall clearance for optimal ring seal and compression in factory-spec cylinders. Each kit includes forged aluminum alloy piston, precision-fitted piston rings, hardened wrist pin, and retaining circlips per cylinder for the Yamaha 1812cc marine engine. Manufactured using premium forged aluminum alloy and precision machined on CNC equipment for consistent dimensions and reliable performance in marine 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
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