420431662 Intake Manifold O-Ring for Sea-Doo GTI P STD 90 900 2018

Intake Manifold O-Ring for Sea-Doo

This intake manifold O-ring, OEM cross-reference 420431662, seals the joint between the intake manifold and the engine to prevent air leaks on 2018 Sea-Doo GTI P STD 90 900 personal watercraft.

Overview

This intake manifold O-ring for Sea-Doo is a direct seal replacement for the original gasket ring on 2018 GTI P STD 90 900 models. The intake manifold O-ring keeps the intake tract airtight so the engine runs with the correct air and fuel mixture. It suits riders doing routine maintenance or a top end refresh on their personal watercraft.

Built For Performance

• OEM cross-reference 420431662 for accurate fitment
• Seals the intake manifold joint against air leaks
• Rubber construction resists fuel and oil exposure
• Direct replacement for the original O-ring
• Compact size for easy installation during manifold service

Fits These Machines

• for Sea-Doo GTI P STD 90 900, 2018

On-The-Job Use

• Intake manifold reinstallation after service
• Top end rebuilds and engine resealing
• Routine maintenance on 2018 GTI 90 models

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 brand product. Confirm your engine size and serial number before ordering.

Q: How many O-rings should I replace at once? A: Replacing every sealing ring removed during intake manifold service is good practice to avoid repeat teardown. Check the parts diagram for your 2018 GTI P STD 90 900 to see if additional seals are needed.

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