420431662 Intake Manifold O-Ring for Sea-Doo GTI SE HO 900 2017

Intake Manifold O-Ring for Sea-Doo

This intake manifold O-ring, OEM cross-reference 420431662, seals the manifold joint on select Sea-Doo GTI SE HO 900 watercraft, helping maintain a leak-free intake path for reliable engine performance.

Overview

This intake manifold O-ring is a sealing component built for the Sea-Doo GTI SE HO 900 platform. It sits between manifold mating surfaces to stop unmetered air from entering the intake, which supports smooth idle and consistent fueling. Suitable for owners handling routine maintenance or replacing a worn seal.

Built For Performance

• OEM cross-reference 420431662 for accurate part matching
• Shaped to seal the intake manifold mating surface
• Withstands heat and fuel vapor typical of marine engine bays
• Flexible material keeps a tight seal under engine vibration
• Lightweight, compact part fitted during manifold service

Fits These Machines

• for Sea-Doo GTI SE HO 900, 2017

On-The-Job Use

• Intake manifold resealing during top-end repair
• Routine replacement of a hardened or leaking O-ring
• Fixing lean-running symptoms caused by intake air leaks
• Seasonal Sea-Doo GTI SE HO maintenance

Specs At A Glance

Good To Know

Q: What symptoms point to a bad intake manifold O-ring? A: Rough idle, hard starting, or a visible leak at the manifold joint are common indicators. Inspect the O-ring for flattening, cracking, or hardening whenever the manifold is removed.

Q: Do I need to lubricate this O-ring before fitting? A: A thin layer of compatible O-ring lubricant helps it seat without pinching. Avoid petroleum-based grease and verify manifold fastener torque specs before reassembly.

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