420256606 Valve Seat Sleeve for Sea-Doo Cruise 18-230 1630 2023-2026

Valve Seat Sleeve for Sea-Doo

This valve seat sleeve is an engine valve train component that presses into the cylinder head to guide and seal the valve for Sea-Doo 1630 ACE engines, carrying OEM cross-reference 420256606.

Overview

The Valve Seat Sleeve is a precision-machined insert that restores valve sealing and guide alignment in the cylinder head of Sea-Doo 1630 engines. This valve seat sleeve is built to OEM dimensions for a direct fit during head service, and it suits riders and shops rebuilding a 1630 powerplant. Keep this valve seat sleeve on hand for top-end work on the 2023-2026 Cruise 18-230.

Built For Performance

• Precision-machined to OEM valve seat dimensions
• Heat-resistant alloy construction for high combustion temperatures
• Restores proper valve sealing and compression
• Direct replacement for OEM cross-reference 420256606
• Suits cylinder head service and rebuild work

Fits These Machines

• for Sea-Doo Cruise 18-230 1630, 2023-2026
• for Sea-Doo models using the 1630 ACE engine with part 420256606

On-The-Job Use

• Cylinder head rebuilds and valve jobs
• Top-end engine service on 1630 ACE powerplants
• Restoring compression after valve seat wear
• Workshop and dealership repair work

Specs At A Glance

Good To Know

Q: Does this valve seat sleeve fit my 2023-2026 Cruise 18-230? A: It is made for the 1630 ACE engine and cross-references 420256606, so confirm your model and serial number before ordering.

Q: Is installation a direct job? A: Valve seat sleeves are press-fit into the cylinder head and typically require machining and specialist tools, so professional installation is recommended.

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