420950840 Water Pump Housing Gasket for Sea-Doo GTX Fish Pro 170 1630 2020-2021

Water Pump Housing Gasket for Sea-Doo

This water pump housing gasket for Sea-Doo seals the pump housing on the 1630 engine, cross-referencing OEM part 420950840 to prevent coolant leaks.

Overview

This water pump housing gasket for Sea-Doo is a sealing component built for the 1630 engine found in the GTX Fish Pro 170. It creates a tight barrier between the water pump housing and engine case, keeping coolant contained under operating pressure. Ideal for owners and technicians servicing 2020 to 2021 models.

Built For Performance

• Cut to match the OEM 420950840 gasket shape
• Resists coolant, heat, and pressure cycling
• Compressible material seals minor surface imperfections
• Holds torque without splitting
• Direct replacement for the factory gasket

Fits These Machines

• for Sea-Doo GTX Fish Pro 170 with 1630 engine, 2020-2021

On-The-Job Use

• Water pump housing service and resealing
• Coolant leak fixes at the housing joint
• Engine teardown and rebuild projects
• Seasonal maintenance checks

Specs At A Glance

Good To Know

Q: Does this gasket fit other Sea-Doo models? A: It is listed for the GTX Fish Pro 170 with the 1630 engine from 2020 to 2021. Always verify your engine and model year before ordering.

Q: Do I need sealant with this gasket? A: Follow the service manual for your model, since some applications call for a dry fit while others use a light sealant. Installing dry is common when surfaces are clean and flat.

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