420256606 Valve Seat Sleeve for Sea-Doo Wake 310 1503 2010-2011

Valve Seat Sleeve for Sea-Doo Wake 310 1503

This valve seat sleeve is a direct-fit replacement component for the Sea-Doo Wake 310 1503 engine, cross-referencing OEM part number 420256606, and it restores proper valve sealing inside the cylinder head.

Overview

This valve seat sleeve for Sea-Doo keeps valve seating true inside the 1503 engine cylinder head, helping maintain compression and combustion efficiency. Manufactured to match OEM part number 420256606, this valve seat sleeve for Sea-Doo Wake 310 is suited to rebuilders and owners refreshing a top end. It is a wear component, so replacing the valve seat sleeve for Sea-Doo during a valve job protects the head from further damage.

Built For Performance

• Direct cross-reference to OEM part number 420256606
• Precision-machined seating surface for consistent valve seal
• Heat-resistant construction suited to head temperatures
• Fits 1503 engine valve seat bores without modification
• Sold individually for targeted replacement

Fits These Machines

• for Sea-Doo Wake 310, 2010-2011
• for Sea-Doo 1503 engine applications

On-The-Job Use

• Cylinder head rebuilds and valve jobs
• Top-end refresh on 1503 engines
• Restoring compression after valve seat wear
• Machining and serviced head assemblies

Specs At A Glance

Good To Know

Q: Does this include the valve itself? A: No, this listing covers the valve seat sleeve only, matching OEM 420256606, so order valves separately if needed. Install should follow the engine service manual for seat depth and clearance.

Q: Will it fit other 1503 engines? A: This sleeve is referenced to the Sea-Doo Wake 310 1503 application, so confirm your model and serial number before ordering. Engine variations can change seat dimensions between years.

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