420431662 Intake Manifold O-Ring for Sea-Doo GTS STDR HO 900 2017

Intake Manifold O-Ring for Sea-Doo

This intake manifold O-ring, OEM cross-reference 420431662, seals the intake manifold joint to prevent air leaks on the Sea-Doo GTS STDR HO 900 from 2017.

Overview

This intake manifold O-ring is a direct-fit sealing component for the Sea-Doo GTS STDR HO 900, carrying OEM cross-reference 420431662. It seals the intake manifold connection so the engine draws unmetered air only through the intended path, helping keep idle and throttle response consistent. It suits owners servicing the intake on their Sea-Doo.

Built For Performance

• OEM cross-reference 420431662 for simplified parts matching
• Seals the intake manifold joint against vacuum leaks
• Withstands fuel vapor, oil mist, and engine bay heat cycles
• Restores factory sealing after manifold removal or rebuild
• Ring profile sized for the 900 ACE intake tract

Fits These Machines

• for Sea-Doo GTS STDR HO 900, 2017

On-The-Job Use

• Intake manifold reseal during routine servicing
• Top-end work where the manifold must be removed and refitted
• Troubleshooting rough idle or lean condition traced to a manifold leak
• Refresh of aging seals on high-hour personal watercraft

Specs At A Glance

Good To Know

Q: Is this an original Sea-Doo part? A: This is an aftermarket intake manifold O-ring built to cross-reference 420431662, and it is not an original Sea-Doo product. Confirm the number on your old seal before ordering.

Q: Should the O-ring be replaced every time the manifold comes off? A: Yes, intake seals are one-time-use in most cases and should be swapped whenever the manifold is separated. Reusing a compressed ring risks an air leak.

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