420855131 Intake Valve for Sea-Doo GTI STD 90 900 2018-2022

Intake Valve for Sea-Doo

This intake valve for Sea-Doo regulates air and fuel flow into the engine cylinder on 900 series watercraft, and it matches the OEM cross-reference 420855131.

Overview

This intake valve for Sea-Doo is a drop-in engine component for top-end service on personal watercraft. The intake valve for Sea-Doo opens on the intake stroke to draw in the air and fuel charge, then closes to seal compression, helping the engine run cleanly and hold power. It is intended for owners and technicians rebuilding 900 series engines.

Built For Performance

• Cross-references OEM part number 420855131
• Precision-ground stem for smooth travel in the valve guide
• Heat-tolerant head material for sustained combustion temperatures
• Machined face for a tight seal against the valve seat
• Consistent dimensions to support correct valve lash and timing

Fits These Machines

• for Sea-Doo GTI STD 90 900, 2018-2022

On-The-Job Use

• Cylinder head rebuilds on 900 series personal watercraft
• Replacing a burnt, sticking, or worn intake valve
• Top-end refresh during seasonal maintenance
• Restoring lost compression on high-hour engines

Specs At A Glance

Good To Know

Q: Can a single intake valve be replaced on its own? A: Yes, but inspecting the remaining valves in the head is wise since they share the same wear conditions. Match the replacement to the engine variant before installation.

Q: What should be checked after installing this valve? A: Valve lash, guide clearance, and seat sealing should all be verified once the head is assembled. Compression testing after startup confirms the top end is sealing correctly.

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