420256606 Valve Seat Sleeve for Sea-Doo Utopia SE 310 1503 2008

Valve Seat Sleeve for Sea-Doo Utopia / SE 310 1503

This valve seat sleeve is a replacement engine component designed to restore proper valve seating in the 1503 engine, carrying the OEM cross-reference 420256606.

Overview

This valve seat sleeve for Sea-Doo is a precision-fit engine component that supports the valve train in the 1503 powerplant. The valve seat sleeve for Sea-Doo helps maintain correct valve seating and compression so the engine runs as intended. It suits owners and technicians rebuilding or servicing the 1503 engine who need a dependable replacement part.

Built For Performance

• Cross-references OEM part number 420256606
• Designed to seat valves correctly in the 1503 cylinder head
• Constructed to withstand repeated combustion heat cycles
• Supports consistent valve sealing and compression
• Suited to rebuild and reconditioning work

Fits These Machines

• for Sea-Doo Utopia 310
• for Sea-Doo SE 310
• for Sea-Doo 1503 engine applications

On-The-Job Use

• Cylinder head rebuilds on the 1503 engine
• Top-end servicing
• Restoring valve seat geometry
• Shop and DIY engine repair

Specs At A Glance

Good To Know

Q: Does this include the valve itself? A: No, this listing is for the valve seat sleeve only. Reuse or order valves and related hardware separately as needed.

Q: Can I install this without machining? A: Seat sleeve installation typically requires proper pressing and head work. Have a qualified technician confirm fit and clearance before assembly.

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