420254882 Intake or Exhaust Valve Guide for Sea-Doo Speedster Wake 155 1503 2007

Intake or Exhaust Valve Guide for Sea-Doo

This intake or exhaust valve guide is a replacement engine component that keeps valve stems aligned inside the cylinder head on select Sea-Doo watercraft, and it carries the OEM cross-reference 420254882.

Overview

This valve guide is a replacement engine component made to keep intake and exhaust valves moving true inside the cylinder head. It fits select Sea-Doo personal watercraft and jet boats that use the 1503 four-stroke engine family, including the Speedster Wake 155. Install it during a top-end refresh when guides show wear, scoring, or excess clearance.

Built For Performance

• Precision-machined bore for consistent valve stem clearance
• Guides valve stems to reduce side loading and seat wear
• Original equipment cross-reference 420254882 for easy lookup
• Suits both intake and exhaust positions where the application calls for it
• Direct-fit replacement for worn or out-of-spec guides

Fits These Machines

• for Sea-Doo Speedster Wake 155
• for Sea-Doo models using the 1503 four-stroke engine

On-The-Job Use

• Cylinder head rebuilds and top-end service
• Valve seal and valve job work
• Marine engine maintenance on personal watercraft and jet boats
• Restoring correct valve stem clearance after wear

Specs At A Glance

Good To Know

Q: How many valve guides does one engine need? A: Count depends on the cylinder head design, so match the quantity to the number of valves you are servicing during the rebuild.

Q: Should valve guides be replaced in full sets? A: Many technicians replace all guides at once when wear is found in one, since heat and mileage typically affect the whole head evenly.

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