420254882 Intake or Exhaust Valve Guide for Sea-Doo Speedster 155 1503 2012

Intake or Exhaust Valve Guide for Sea-Doo

This intake or exhaust valve guide, OEM cross-reference 420254882, keeps valve stems aligned in the cylinder head for consistent sealing and reliable engine operation.

Overview

This intake or exhaust valve guide is a cylinder head component that holds valve stems on center so they seat evenly during every combustion cycle. Built to OEM cross-reference 420254882, the valve guide supports steady compression, reduces guide bore wear, and helps keep valve timing accurate. It suits riders and mechanics servicing Sea-Doo 1503 engines who want a direct-fit replacement part.

Built For Performance

• Machined to OEM cross-reference 420254882 for a precise fit in the cylinder head
• Guides the valve stem to keep the valve centered on its seat
• Helps maintain stable compression and consistent combustion
• Reduces stem-to-guide clearance wear for longer valve service life
• Works for intake or exhaust valve positions as required by the head
• Suits rebuild, top-end refresh, and routine valve service work

Fits These Machines

• for Sea-Doo Speedster 155 1503 (2012)

On-The-Job Use

• Cylinder head rebuilds on Sea-Doo 1503 engines
• Valve seal and valve job service
• Top-end refresh after compression loss or valve noise
• Shop and DIY engine repair work

Specs At A Glance

Good To Know

Q: How many valve guides do I need per engine? A: Count the valves in the head you are servicing, since each valve position needs its own guide. Order the quantity that matches your cylinder head before starting the job.

Q: Can this valve guide be pressed in at home? A: Installation typically requires a press and correct driver, plus checking guide height and reaming if specified. A machine shop is a safer route if you lack the tooling.

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