420855131 Intake Valve for Sea-Doo GTS STDR HO 900 2017

Intake Valve for Sea-Doo

This intake valve for Sea-Doo is a replacement engine component that regulates airflow into the combustion chamber, built to OEM cross-reference 420855131.

Overview

This intake valve for Sea-Doo is a direct-fit engine component engineered for 900 HO and similar powerplants. As a replacement intake valve for Sea-Doo GTS and STDR models, it helps restore proper cylinder sealing and engine breathing. It suits riders and technicians performing valve service or top-end rebuilds.

Built For Performance

• Manufactured to match OEM cross-reference 420855131 for accurate fitment
• Precision-ground valve face for a consistent seal against the valve seat
• Heat-resistant alloy construction suited to high-rpm marine engine operation
• Stem dimensions held to tight tolerances for proper guide clearance
• Designed for direct replacement without machining in most cases

Fits These Machines

• for Sea-Doo GTS 900
• for Sea-Doo STDR 900
• for Sea-Doo GTX HO 900
• for Sea-Doo Spark 900

On-The-Job Use

• Top-end engine rebuilds on 900 HO personal watercraft
• Valve replacement during cylinder head service
• Restoring compression on high-hour recreational skis
• Routine maintenance after valve clearance inspection

Specs At A Glance

Good To Know

Q: Is this an original Sea-Doo part? A: No, this is an aftermarket intake valve made to OEM cross-reference 420855131 and is not an original brand product. It is designed as a replacement for the listed application.

Q: Do I need to replace all valves at once? A: Valve replacement is typically done as a set during a top-end rebuild for even wear and consistent sealing. Confirm your engine's valve count and clearances before ordering.

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