40280M08600 Std Piston 86.00mm Bore for Yamaha GP1800R SVHO 2018-2025

Wiseco Std Piston for Yamaha

This Wiseco standard piston, part number 40280M08600, is a 86.00mm bore replacement piston engineered to restore compression and reliable power in your Yamaha marine engine.

Overview

This Wiseco standard piston for Yamaha is a direct-fit replacement piston sized at 86.00mm bore for rebuilds and top-end refreshes. The piston works with the 40280M08600 part number to deliver dependable sealing and consistent combustion in Yamaha watercraft engines. It suits riders and mechanics rebuilding a stock-displacement engine who want a quality piston for Yamaha applications.

Built For Performance

• Standard 86.00mm bore size for stock-displacement rebuilds
• Part number 40280M08600 for easy cross-reference
• Manufactured by Wiseco, a recognized name in powersports pistons
• Designed for reliable compression and sealing in marine engines
• Suited to top-end rebuild and refresh work
• Fits Yamaha applications as a replacement piston

Fits These Machines

• for Yamaha GP1800R SVHO 2018
• for Yamaha GP1800R SVHO 2019
• for Yamaha GP1800R SVHO 2020
• for Yamaha GP1800R SVHO 2021
• for Yamaha GP1800R SVHO 2022
• for Yamaha GP1800R SVHO 2023
• for Yamaha GP1800R SVHO 2024
• for Yamaha GP1800R SVHO 2025

On-The-Job Use

• Top-end engine rebuilds on Yamaha watercraft
• Restoring compression after piston or ring wear
• Routine maintenance on stock-displacement engines
• Marine repair and service work

Specs At A Glance

Good To Know

Q: What does standard bore mean for this piston? A: It is sized to the original 86.00mm cylinder bore, so it suits a rebuild where the cylinder has not been overbored.

Q: Is this an original Yamaha part? A: No, this is a Wiseco piston for Yamaha applications and is not an original brand product.

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