420950253 Exhaust Gasket for Sea-Doo GS 720 1997-1999

Exhaust Gasket for Sea-Doo

This exhaust gasket for Sea-Doo replaces OEM part 420950253 and seals the exhaust joint on GS 720 watercraft built from 1997 through 1999.

Overview

This exhaust gasket for Sea-Doo is a sealing component made for the 720 engine exhaust system. It keeps hot exhaust gases contained at the joint and protects surrounding components from leaks. Ideal for riders servicing a GS 720 between 1997 and 1999.

Built For Performance

• Cut to match the OEM 420950253 sealing surface
• Heat-resistant construction for exhaust temperatures
• Seals evenly to prevent gas leaks at the joint
• Bolt-on replacement with no modifications needed
• Holds up to the vibration of marine engine use

Fits These Machines

• for Sea-Doo GS 720 (1997)
• for Sea-Doo GS 720 (1998)
• for Sea-Doo GS 720 (1999)

On-The-Job Use

• Exhaust rebuilds and top end service
• Fixing leaks on 720 series marine engines
• Scheduled maintenance on 1997 to 1999 GS models
• Preparing a personal watercraft for the water

Specs At A Glance

Good To Know

Q: Is this gasket reusable if I take the exhaust apart again? A: No, exhaust gaskets are meant for one-time use and should be swapped out any time the joint is opened to keep a proper seal.

Q: Does this fit both the GS and GSI 720? A: It matches the OEM 420950253 profile used across 720 applications, but always verify your specific model and year before ordering.

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