420254882 Intake or Exhaust Valve Guide for Sea-Doo RXT X 300 1630 2016-2023

Valve Guide for Sea-Doo RXT X 300

This intake or exhaust valve guide, OEM cross-reference 420254882, keeps valve stems moving true inside the cylinder head of the 1630 engine used in the Sea-Doo RXT X 300.

Overview

This valve guide is a replacement cylinder head component for the Sea-Doo RXT X 300 1630 engine. It supports accurate valve stem alignment so the intake and exhaust valves seat correctly through the combustion cycle. Built for riders and shops servicing 2016 to 2023 Sea-Doo RXT X 300 watercraft, this valve guide restores the clearances the valvetrain depends on.

Built For Performance

• Direct cross-reference to OEM part number 420254882
• Guides intake and exhaust valve stems in the 1630 cylinder head
• Maintains valve stem to guide clearance for proper sealing
• Machined to fit the 1630 engine cylinder head bore
• Suited to replacement during top-end service or valve work

Fits These Machines

• for Sea-Doo RXT X 300 1630, 2016-2023

On-The-Job Use

• Top-end rebuilds on the 1630 engine
• Valve stem replacement and head reconditioning
• Marine repair shops servicing Sea-Doo RXT X 300 models
• Routine engine maintenance requiring valve guide replacement

Specs At A Glance

Good To Know

Q: Does this valve guide fit both intake and exhaust valves? A: Yes, this guide is listed as an intake or exhaust valve guide for the 1630 cylinder head. Confirm your valve position and head specifications before installing.

Q: How many guides should I order? A: Order one guide per valve position you are servicing on the 1630 head. Check your engine's total valve count so you have the right quantity on hand.

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