420256606 Valve Seat Sleeve for Sea-Doo RXP S/C 1503 2004

Valve Seat Sleeve for Sea-Doo RXP S/C 1503

This valve seat sleeve is a replacement engine component designed to fit into the cylinder head of your Rotax 1503 engine, restoring a proper sealing surface for the valves and helping maintain compression. It cross-references OEM part number 420256606.

Overview

This valve seat sleeve serves as a durable insert for the cylinder head of the 1503 engine used in the supercharged Sea-Doo RXP platform. It provides a fresh seating surface for the valve, helping restore proper sealing and compression in a rebuilt head. This valve seat sleeve is intended for riders and mechanics performing top-end engine service.

Built For Performance

• Precision-machined to match the OEM 420256606 seat dimensions
• Constructed for reliable valve sealing under high-RPM operation
• Designed for the Rotax 1503 four-stroke engine family
• Helps restore compression after a valve job or head rebuild
• Direct replacement for the factory seat sleeve

Fits These Machines

• for Sea-Doo RXP S/C 1503, 2004

On-The-Job Use

• Cylinder head rebuilds on the 1503 engine
• Valve job service and head reconditioning
• Top-end repairs after valve seat wear or damage
• Supercharged RXP platform engine service

Specs At A Glance

Good To Know

Q: Is this an original Sea-Doo part? A: No, this is an aftermarket replacement valve seat sleeve made to cross-reference OEM 420256606. It is designed for the Sea-Doo RXP S/C 1503 platform.

Q: How many should I order for a full head rebuild? A: Order the quantity that matches the number of seats you are replacing in your cylinder head. Check your service manual for the exact count on your 1503 engine.

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