420254882 Intake or Exhaust Valve Guide for Sea-Doo Base 16-170 1630 2026

Valve Guide for Sea-Doo

This intake or exhaust valve guide, OEM cross-reference 420254882, keeps valve stems moving true inside the cylinder head of your Sea-Doo engine.

Overview

This valve guide for Sea-Doo is a cylinder head component that holds each valve stem on its correct axis as it opens and closes. The valve guide for Sea-Doo reduces stem wear and helps maintain a consistent valve seal for strong compression. It suits riders and mechanics rebuilding or refreshing 1630cc Sea-Doo engines.

Built For Performance

• Precision bore sized to the 420254882 specification for a true valve stem fit
• Works on intake or exhaust valve positions
• Hardened surface resists stem scuffing and side load
• Restores correct valve alignment in the cylinder head
• Direct replacement for the original guide

Fits These Machines

• for Sea-Doo Base 16-170 1630, 2026

On-The-Job Use

• Cylinder head rebuilds on 1630cc Sea-Doo engines
• Valve seal and compression service
• Top end refresh after overheating or high hours
• Workshop engine assembly and machine shop work

Specs At A Glance

Good To Know

Q: How many valve guides does one engine need? A: Each cylinder head uses one guide per valve position, so order the quantity that matches your engine's valve count. A:

Q: Should valve guides be replaced with the valves? A: When stems or seats show wear, replacing guides and valves together keeps clearances correct. A:

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