420431662 Intake Manifold O-Ring for Sea-Doo GTS P STDR 90 900 2018

Intake Manifold O-Ring for Sea-Doo

This intake manifold O-ring seals the joint between the intake manifold and engine to prevent air leaks, and it is a direct match to OEM part number 420431662 for Sea-Doo watercraft.

Overview

This intake manifold O-Ring for Sea-Doo is a sealing component that fits between the intake manifold and the engine to stop unmetered air from entering the system. A failing seal can cause rough running and lean conditions, so replacing this intake manifold O-Ring restores a clean, consistent seal on your watercraft. It is a practical replacement part for riders servicing their own Sea-Doo GTS P STDR 90 900 from 2018.

Built For Performance

• Cross-references OEM part number 420431662 for a direct fit
• Seals the intake manifold mounting surface against air leaks
• Constructed from fuel and heat resistant rubber material
• Built to hold its shape under repeated heat cycling
• Simple press-on installation without special tools

Fits These Machines

• for Sea-Doo GTS P STDR 90 900, 2018

On-The-Job Use

• Intake manifold resealing during top end service
• Leak repair after removing the manifold for cleaning
• Routine maintenance on 900 ACE engine platforms
• Restoring smooth idle and throttle response

Specs At A Glance

Good To Know

Q: How do I know this O-ring fits my watercraft? A: Confirm your engine model and part number 420431662 against your machine before ordering. This O-ring is listed for the Sea-Doo GTS P STDR 90 900, 2018.

Q: Should I replace the O-ring every time the manifold is removed? A: Yes, an intake manifold O-ring is a single-use seal and is best replaced whenever the manifold is separated. Reusing an old seal risks air leaks and poor running.

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