420256606 Valve Seat Sleeve for Sea-Doo GTX Fish Pro 1503 2019

Valve Seat Sleeve for Sea-Doo

This valve seat sleeve, reference 420256606, fits into the cylinder head of your engine to hold the valve seat securely and maintain proper valve alignment.

Overview

This valve seat sleeve is a precision engine component designed for Sea-Doo personal watercraft. Reference 420256606, it fits into the cylinder head to secure the valve seat and maintain correct valve seating under compression. It is intended for riders and mechanics performing top-end engine service on the GTX Fish Pro 1503.

Built For Performance

• Direct reference 420256606 for straightforward identification
• Precision machined to hold the valve seat firmly in the head
• Maintains correct valve alignment for reliable compression
• Constructed from durable material suited to marine engine heat
• Designed for 1503 engine top-end service

Fits These Machines

• for Sea-Doo GTX Fish Pro 1503 (2019)

On-The-Job Use

• Cylinder head rebuilds and valve service
• Top-end engine repair on the 1503 platform
• Replacing a worn or damaged valve seat sleeve
• Routine maintenance for marine engine reliability

Specs At A Glance

Good To Know

Q: Is this an original Sea-Doo part? A: This is an aftermarket valve seat sleeve made for Sea-Doo applications and is not an original brand product.

Q: Do I need to replace all valve seat sleeves at once? A: It is best practice to inspect all sleeves during a head rebuild and replace any that show wear, so consult your service manual for guidance.

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