420256606 Valve Seat Sleeve for Sea-Doo RXT P XRS 300 1630 2018

Valve Seat Sleeve for Sea-Doo

This valve seat sleeve replaces OEM part 420256606 in Sea-Doo RXT P XRS 300 1630 2018 watercraft, holding the valve seat in place so the valve seals correctly against the cylinder head.

Overview

This valve seat sleeve is a replacement component for the Sea-Doo 1630 engine used in RXT P XRS 300 models. The valve seat sleeve fits into the cylinder head and supports the valve seat, keeping compression sealed and valves operating correctly. It suits riders and mechanics rebuilding or servicing the 2018 Sea-Doo RXT P XRS 300 1630 top end.

Built For Performance

• Direct replacement for OEM part number 420256606
• Machined to support proper valve seat installation and alignment
• Manufactured for the 1630 four-stroke engine platform
• Helps maintain correct valve sealing and compression
• Sold as an individual sleeve for precise replacement

Fits These Machines

• for Sea-Doo RXT P XRS 300 1630 2018
• for Sea-Doo RXT P X 300 1630 2018

On-The-Job Use

• Cylinder head rebuilds on the 1630 engine
• Valve seat replacement during top-end service
• Refreshing worn valve train components
• Shop or garage engine repair work

Specs At A Glance

Good To Know

Q: Is this an original Sea-Doo part? A: No, it is an aftermarket valve seat sleeve that replaces OEM part 420256606. It is designed to fit the listed Sea-Doo models.

Q: How many sleeves come with this order? A: This listing is for one valve seat sleeve. Check your engine rebuild requirements to order the correct quantity.

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