420256606 Valve Seat Sleeve for Sea-Doo RXP X 325 1630 2024-2026

Valve Seat Sleeve for Sea-Doo

This valve seat sleeve is a replacement engine component for Sea-Doo personal watercraft, cross-referencing OEM part number 420256606, and it provides a durable seat surface for the valve to seal against inside the cylinder head.

Overview

This valve seat sleeve for Sea-Doo is a precision-fit engine component that presses into the cylinder head to give the valve a hard, stable sealing surface. The valve seat sleeve for Sea-Doo helps restore proper compression and valve sealing on 1630 ACE engines used in RXP X 325 models. It is intended for riders and mechanics rebuilding or refreshing a high-output Sea-Doo engine.

Built For Performance

• Cross-references OEM part number 420256606 for straightforward identification
• Designed to seat valves firmly in the 1630 ACE engine cylinder head
• Supports consistent compression and valve sealing under load
• Suited to high-RPM marine engine operating conditions
• Replacement part for worn or damaged original seat sleeves

Fits These Machines

• for Sea-Doo RXP X 325 1630, model years 2024 to 2026

On-The-Job Use

• Cylinder head service and valve work on Sea-Doo 1630 ACE engines
• Top-end rebuilds on RXP X 325 personal watercraft
• Restoring valve sealing after seat wear or damage
• Routine engine refresh on high-hour performance PWC

Specs At A Glance

Good To Know

Q: Is this an original Sea-Doo part? A: No, this is a replacement valve seat sleeve that cross-references OEM number 420256606. Confirm the part number matches your engine before ordering.

Q: How many valve seat sleeves does one engine need? A: A 1630 ACE engine uses multiple valves, so order the quantity your specific cylinder head service requires. Check your model year and engine layout to confirm the count.

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