420254882 Valve Guide for Sea-Doo Fish 21-230 1630 2025-2026

Intake or Exhaust Valve Guide for Sea-Doo

This intake or exhaust valve guide, part number 420254882, is a replacement engine component that keeps valves moving in precise alignment within the cylinder head.

Overview

This valve guide is a replacement engine component made for Sea-Doo personal watercraft, cross-referenced under part number 420254882. It keeps the intake or exhaust valve aligned as it opens and closes, which supports stable compression and clean combustion. It suits riders and mechanics replacing worn guides during a top-end rebuild.

Built For Performance

• Direct cross-reference to OEM part number 420254882
• Designed for intake or exhaust valve placement in the cylinder head
• Maintains valve stem alignment through the full lift cycle
• Constructed to withstand continuous high-rpm marine engine operation
• Sold as a single guide for targeted replacement

Fits These Machines

• for Sea-Doo Fish 21-230 1630, 2025-2026

On-The-Job Use

• Cylinder head rebuilds on 1630 engine platforms
• Top-end service after valve seat or valve stem wear
• Restoring valve alignment on high-hour personal watercraft
• Refresh work before a new riding season

Specs At A Glance

Good To Know

Q: How many valve guides does this listing include? A: This listing covers one valve guide, so order the quantity needed for your cylinder head service. Q: Does this guide work for both intake and exhaust positions? A: The title lists it as an intake or exhaust valve guide, so confirm the position required for your specific engine 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.