420256606 Valve Seat Sleeve for Sea-Doo GTX P STD 230 1503 2018

Valve Seat Sleeve for Sea-Doo

The Valve Seat Sleeve is a precision engine component that provides a durable seating surface for the valve, helping maintain proper compression and valve alignment in your watercraft engine; it cross-references OEM part number 420256606.

Overview

This Valve Seat Sleeve is designed to restore the valve seating area inside the cylinder head, helping your engine hold compression and run smoothly. It serves riders and mechanics rebuilding or servicing Sea-Doo watercraft engines who need a reliable replacement for a worn or damaged seat. The Valve Seat Sleeve installs in the cylinder head and works as an essential part of the valvetrain for the 1503 engine platform.

Built For Performance

• Precision-machined to provide a proper sealing surface for the valve
• Constructed to withstand the heat and pressure of marine engine operation
• Helps restore compression and combustion efficiency after head service
• Direct replacement for OEM part number 420256606
• Designed to fit the 1503 engine valve seat location

Fits These Machines

• for Sea-Doo GTX P STD 230 1503, 2018

On-The-Job Use

• Cylinder head rebuilds and valve jobs
• Top-end engine service and repair
• Restoring compression on high-hour marine engines
• Professional and DIY watercraft maintenance

Specs At A Glance

Good To Know

Q: Does this valve seat sleeve come as a single unit? A: Yes, this listing is for one valve seat sleeve matching OEM 420256606. Confirm the quantity you need for your rebuild before ordering.

Q: Does installing this sleeve require machine work? A: Valve seat sleeve installation typically requires pressing and machining to achieve the correct seat angle and depth. Having a qualified engine shop handle installation helps ensure proper valve sealing.

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