420256606 Valve Seat Sleeve for Sea-Doo GTX Wake NA 1503 2007

Valve Seat Sleeve for Sea-Doo

This valve seat sleeve, part number 420256606, is a press-in cylinder head component that restores the valve seat bore on the Rotax 1503 engine used in the Sea-Doo GTX Wake NA.

Overview

This valve seat sleeve is a precision-machined insert for the cylinder head of the Rotax 1503 engine found in the Sea-Doo GTX Wake NA. It renews the valve seat bore so the valve can seal correctly and combustion pressure stays where it belongs. This valve seat sleeve suits riders and shops rebuilding or repairing a 2007 Sea-Doo engine.

Built For Performance

• Machined from hardened alloy steel for wear resistance at the valve seat
• Precision ground bore supports correct valve seating and compression
• Press-fit design matches the cylinder head bore of the Rotax 1503 engine
• Direct cross-reference to part number 420256606
• Sold as a single sleeve for one valve seat position

Fits These Machines

• for Sea-Doo GTX Wake NA, 1503 engine, 2007

On-The-Job Use

• Cylinder head rebuilds on the Rotax 1503 engine
• Valve seat repair after overheating or valve recession
• Personal watercraft service and restoration projects
• Machine shop head reconditioning work

Specs At A Glance

Good To Know

Q: Does this sleeve need machining after installation? A: Valve seat sleeves are typically installed with a press and then cut or ground to match the valve angle, so head work by a machine shop is usually required.

Q: Is this an original Sea-Doo part? A: This is an aftermarket valve seat sleeve that cross-references part number 420256606 for the listed Sea-Doo application.

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