40280M08600 Std Piston 86.00mm Bore for Yamaha FX 1800 SVHO 2008-2025

Std Piston for Yamaha FX 1800 SVHO

This Wiseco standard piston, part number 40280M08600, is an 86.00mm bore replacement piston built to restore compression and power in Yamaha FX 1800 SVHO personal watercraft engines.

Overview

This Wiseco standard piston for Yamaha FX 1800 SVHO watercraft is a direct-fit replacement engineered to factory 86.00mm bore dimensions. It restores lost compression and reliable combustion in engines that have worn or scored original pistons. Ideal for riders and mechanics rebuilding a Yamaha FX 1800 SVHO top end with quality internal components.

Built For Performance

• 86.00mm standard bore sizing matches factory cylinder dimensions
• Wiseco forged piston construction for strength under high RPM marine loads
• Precision machined ring grooves for consistent sealing
• Heat-resistant alloy suited to sustained personal watercraft operation
• Direct replacement for OEM piston number 40280M08600

Fits These Machines

• for Yamaha FX 1800 SVHO, 2008-2025

On-The-Job Use

• Top-end rebuilds on Yamaha FX 1800 SVHO personal watercraft
• Restoring compression after piston scoring or ring wear
• Routine engine refresh during off-season maintenance
• Performance rebuilds requiring a standard bore piston

Specs At A Glance

Good To Know

Q: Does this piston fit my Yamaha FX 1800 SVHO? A: It is listed for Yamaha FX 1800 SVHO models from 2008 to 2025 with an 86.00mm standard bore. Confirm your engine code and bore size before ordering.

Q: Is this an original Yamaha piston? A: No, this is a Wiseco piston that cross-references OEM part 40280M08600. It is an aftermarket replacement, not a Yamaha-branded component.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.