420256606 Valve Seat Sleeve for Sea-Doo GTS 1503 2015

Valve Seat Sleeve for Sea-Doo

The valve seat sleeve is a precision engine component that presses into the cylinder head to provide a durable seating surface for the engine valve, and it carries the OEM cross-reference 420256606.

Overview

This valve seat sleeve for Sea-Doo is a replacement engine part that restores proper valve seating in the cylinder head of the 1503 engine. The valve seat sleeve 420256606 helps maintain compression and valve alignment so the engine runs as intended. It suits riders and mechanics rebuilding or refreshing a Sea-Doo 1503 powerplant.

Built For Performance

• OEM cross-reference 420256606 for accurate fitment
• Precision-machined seating surface for the engine valve
• Pressed-in design that holds valve alignment under load
• Constructed for heat and wear resistance in the cylinder head
• Direct replacement for the worn or damaged original sleeve
• Ready to install during a top-end rebuild or valve service

Fits These Machines

• for Sea-Doo GTS 1503 (2015)

On-The-Job Use

• Cylinder head refurbishment on 1503 engines
• Valve service and top-end rebuilds
• Restoring proper valve seating and compression
• Shop and DIY repair work on personal watercraft

Specs At A Glance

Good To Know

Q: How do I know this sleeve fits my engine? A: Confirm your engine is a 1503 and that the part number 420256606 matches your original. Fit can also depend on your specific model year and serial number.

Q: Can I install this myself? A: Installing a valve seat sleeve typically requires specialized machining and pressing tools. A qualified engine machinist or technician is recommended for correct installation.

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