420931481 Exhaust Manifold Gasket for Sea-Doo GTX RFI 800 1998-2002

Exhaust Manifold Gasket for Sea-Doo

This exhaust manifold gasket seals the exhaust manifold joint on select Sea-Doo GTX RFI 800 watercraft, serving as a direct replacement for OEM part number 420931481.

Overview

This exhaust manifold gasket for Sea-Doo is designed to seal the manifold mounting joint on 800 RFI engines and prevent exhaust leaks. The exhaust manifold gasket for Sea-Doo GTX RFI 800 delivers a reliable seal for 1998 to 2002 models. Riders and shops working on the GTX RFI 800 will find this exhaust manifold gasket matches OEM reference 420931481.

Built For Performance

• Direct replacement for OEM part number 420931481
• Heat-resistant construction for exhaust manifold conditions
• Provides a tight seal at the manifold joint
• Helps preserve exhaust flow and engine output
• Sold as a single gasket for easy replacement

Fits These Machines

• for Sea-Doo GTX RFI 800, 1998
• for Sea-Doo GTX RFI 800, 1999
• for Sea-Doo GTX RFI 800, 2000
• for Sea-Doo GTX RFI 800, 2001
• for Sea-Doo GTX RFI 800, 2002

On-The-Job Use

• Manifold removal and installation work
• Exhaust leak repair on RFI models
• Top-end service and gasket replacement
• Seasonal maintenance for 800 series engines

Specs At A Glance

Good To Know

Q: What causes an exhaust manifold gasket to fail on a personal watercraft? A: Constant heat cycling, vibration, and age all break down exhaust gasket material over time. A failed gasket often shows up as exhaust noise or soot near the manifold joint.

Q: Is it safe to reuse an exhaust manifold gasket? A: Exhaust manifold gaskets are generally single-use and should be replaced whenever the manifold is removed. Reusing an old gasket risks leaks and uneven sealing.

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