420256606 Valve Seat Sleeve for Sea-Doo Challenger SE 215 1503 2012

Valve Seat Sleeve for Sea-Doo

This valve seat sleeve, carrying OEM cross-reference 420256606, is a replacement engine component that seats and guides the valve inside the cylinder head of select Sea-Doo watercraft.

Overview

This valve seat sleeve is a precision-machined component that presses into the cylinder head to give the valve a durable seating surface. As a direct cross-reference for 420256606, this valve seat sleeve helps restore proper valve sealing on Sea-Doo 1503 engines found in Challenger and SE models. It suits riders and mechanics rebuilding or refreshing a top end.

Built For Performance

• Cross-references OEM part number 420256606
• Machined for a precise press fit into the cylinder head
• Provides a hard, heat-resistant valve seating surface
• Helps maintain correct valve seal and compression
• Suited to the 1503 four-stroke engine family

Fits These Machines

• for Sea-Doo Challenger 215 (2012)
• for Sea-Doo Challenger SE 215 (2012)

On-The-Job Use

• Top-end rebuilds on 1503 four-stroke engines
• Cylinder head refresh during valve service
• Shop and DIY engine repair work
• Restoring valve seal on high-hour watercraft

Specs At A Glance

Good To Know

Q: Does this fit my 2012 Challenger? A: It cross-references 420256606 and is listed for the Challenger and Challenger SE with the 215-hp 1503 engine. Confirm your serial number and engine code before ordering.

Q: Can I install this myself? A: Valve seat sleeves typically require machining and pressing into the head, so professional installation is recommended. Fit can vary by cylinder head condition and serial number.

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