40280M08600 Std Piston 86.00mm for Yamaha 275E 275SD 275SE 2019-2021

Wiseco Std Piston for Yamaha 275E, 275SD & 275SE

This Wiseco standard piston with an 86.00 mm bore is a direct-fit engine replacement component for Yamaha 275E, 275SD, and 275SE models, allowing you to rebuild the top end with confidence.

Overview

This Wiseco Std Piston is engineered as a drop-in replacement for the original piston in Yamaha 275E, 275SD, and 275SE watercraft. The 86.00 mm bore matches the factory standard cylinder size, so no overboring is required for a standard rebuild. It is suited to riders and mechanics who want a dependable piston for routine top-end service.

Built For Performance

• Standard 86.00 mm bore size for direct fitment without overboring
• Forged construction for high strength under load
• Precision machined for accurate cylinder wall clearance
• Designed to withstand the demands of marine engine operation
• Manufactured to match original equipment specifications

Fits These Machines

• for Yamaha 275E, 2019-2021
• for Yamaha 275SD, 2019-2021
• for Yamaha 275SE, 2019-2021

On-The-Job Use

• Top-end engine rebuilds on Yamaha 275 series watercraft
• Restoring compression in worn or damaged cylinders
• Routine maintenance for marine mechanics
• Replacing a scored or seized factory piston

Specs At A Glance

Good To Know

Q: Does this piston require overboring? A: No, this is a standard 86.00 mm piston designed for factory bore cylinders. Confirm your cylinder is still within standard specification before installing.

Q: Can I install this piston myself? A: Installation requires engine disassembly and precise measurement of clearances, so professional mechanical experience is recommended. Always verify the part number against your machine before ordering.

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