420254882 Intake or Exhaust Valve Guide for Sea-Doo Challenger SP 155 1503 2009

Intake or Exhaust Valve Guide for Sea-Doo

This valve guide for Sea-Doo, OEM cross-reference 420254882, is a replacement engine component that keeps intake and exhaust valves moving true inside the cylinder head.

Overview

This intake or exhaust valve guide for Sea-Doo is a precision-machined sleeve that presses into the cylinder head and keeps each valve stem tracking straight through every cycle. It controls valve stem side play so the valve seats evenly and the engine holds compression. Built for riders and rebuilders servicing the 1503 engine platform.

Built For Performance

• Precision bored to match factory valve stem clearance for the 1503 engine
• Bronze alloy construction for heat resistance and long wear life
• Correct installed height for consistent valve seating
• Direct OEM cross-reference 420254882 for straightforward replacement
• Sold as a single guide so you can order the exact quantity your rebuild needs

Fits These Machines

• for Sea-Doo Challenger SP 155 with 1503 engine

On-The-Job Use

• Cylinder head rebuilds on 1503 watercraft engines
• Repairing worn valve guides that cause oil consumption or rough running
• Valve seat and guide service after a top end teardown
• Routine engine refresh on high-hour personal watercraft

Specs At A Glance

Good To Know

Q: How many guides should I order for a full rebuild? A: Order one guide for each valve position you are servicing, since this listing is for a single intake or exhaust valve guide. Verify your cylinder head layout before ordering.

Q: Does this guide require machining after installation? A: Valve guides are typically pressed in and then reamed or honed to reach the correct valve stem clearance. Have the work done by a qualified engine machinist for best results.

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