420950253 Exhaust Gasket for Sea-Doo GSI 720 1997

Exhaust Gasket for Sea-Doo

This exhaust gasket for Sea-Doo watercraft replaces OEM part 420950253 and seals the exhaust joint to prevent leaks on 720 series engines.

Overview

This exhaust gasket for Sea-Doo is a direct-fit sealing component for the 720 engine exhaust system. It seals the connection between exhaust components so hot gases stay contained and the engine breathes as designed. A smart pick for anyone refreshing the top end or chasing down an exhaust leak on a 1997 GSI.

Built For Performance

• Precision-cut to match the OEM 420950253 sealing profile
• Heat-resistant material suited to exhaust temperatures
• Compresses evenly for a tight, leak-free seal
• Direct replacement, no modification required
• Withstands vibration from constant marine engine operation

Fits These Machines

• for Sea-Doo GSI 720 (1997)

On-The-Job Use

• Exhaust system rebuilds and top end service
• Leak repairs on 720 series marine engines
• Routine maintenance on 1997 GSI models
• Restoring a personal watercraft for the season

Specs At A Glance

Good To Know

Q: Do I need to replace this gasket every time I remove the exhaust? A: Yes, exhaust gaskets are single-use sealing components and should be replaced whenever the joint is opened to avoid leaks.

Q: Will this gasket work on other 720 engines? A: It is cut to the OEM 420950253 profile, which is used across several 720 applications, but confirm your 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.