420256606 Valve Seat Sleeve for Sea-Doo GTR 215 1503 2012-2016

Valve Seat Sleeve for Sea-Doo GTR 215

This valve seat sleeve, reference 420256606, is a cylinder head component that supports the valve seat in the 1503 engine used across the Sea-Doo GTR 215 line.

Overview

This valve seat sleeve for Sea-Doo is a precision-machined sleeve that presses into the cylinder head to hold the valve seat securely in place for the 1503 engine. It restores a stable valve seating surface on the Sea-Doo GTR 215, helping maintain proper compression and combustion. Built for riders and mechanics servicing 2012 through 2016 GTR 215 machines, this valve seat sleeve keeps valve geometry true so the engine runs clean.

Built For Performance

• Machined to hold the valve seat concentric with the valve guide
• Restores a stable seating surface for consistent valve seal
• Withstands the heat and load of the 1503 engine
• Direct cross-reference to 420256606 for straightforward sourcing
• Installs in the cylinder head as a press-fit sleeve

Fits These Machines

• for Sea-Doo GTR 215 1503, 2012-2016

On-The-Job Use

• Cylinder head service and valve seat replacement
• Top-end rebuilds on the 1503 engine
• Restoring valve seal after seat wear
• Shop repair work on GTR 215 machines

Specs At A Glance

Good To Know

Q: What does the valve seat sleeve do? A: It holds the valve seat in the cylinder head so the valve seals correctly against it. A sound sleeve helps keep compression and combustion consistent.

Q: Does this fit every GTR 215? A: It is listed for the GTR 215 1503 from 2012 to 2016. Confirm your model year and serial number before ordering.

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