420256606 Valve Seat Sleeve for Sea-Doo Challenger SE 155 1503 2007-2009

Valve Seat Sleeve for Sea-Doo

This valve seat sleeve, reference 420256606, is a replacement engine component that presses into the cylinder head to provide a durable seating surface for the valve and help restore proper valve sealing.

Overview

This valve seat sleeve is a precision engine component made to replace a worn or damaged seat in the cylinder head. The valve seat sleeve for Sea-Doo helps maintain correct valve sealing and compression. It is intended for owners and technicians rebuilding or servicing 1503 engines.

Built For Performance

• Direct replacement for OEM reference 420256606
• Restores proper valve seating surface
• Helps maintain cylinder compression
• Machined for accurate fit in the cylinder head
• Suits rebuild and refresh work on 1503 engines

Fits These Machines

• for Sea-Doo Challenger 155, 2007-2009
• for Sea-Doo Challenger SE 155, 2007-2009

On-The-Job Use

• Cylinder head rebuilds
• Valve service and reseating
• Engine refresh on 1503 powerplants
• Shop and DIY repair work

Specs At A Glance

Good To Know

Q: Does this fit both the Challenger and Challenger SE? A: Yes, this valve seat sleeve is listed for the Challenger and Challenger SE 155 models from 2007 through 2009. Confirm your engine code and serial number before ordering.

Q: Is this an original Sea-Doo part? A: This is an aftermarket replacement valve seat sleeve referenced to 420256606, not an original brand product. Professional installation is recommended.

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