420950840 Water Pump Housing Gasket for Sea-Doo RXP XRS 300 1630 2017-2022

Water Pump Housing Gasket for Sea-Doo

This water pump housing gasket for Sea-Doo seals the pump housing on 1630-powered models to prevent coolant leaks, and is a direct cross-reference for OEM 420950840.

Overview

This water pump housing gasket for Sea-Doo is a sealing component that fits between the pump housing and engine case to keep coolant contained under pressure. The gasket for Sea-Doo water pump applications helps maintain proper cooling flow on 1630 engines used in RXP XRS 300 models from 2017 to 2022. It is intended for riders performing routine maintenance or replacing a worn, leaking seal.

Built For Performance

• Precision-cut to match the OEM 420950840 sealing profile
• Constructed from gasket material rated for coolant and heat exposure
• Compresses evenly to seal the pump housing mating surface
• Resists swelling and breakdown from prolonged coolant contact
• Direct replacement for the original housing gasket

Fits These Machines

• for Sea-Doo RXP XRS 300 1630, 2017
• for Sea-Doo RXP XRS 300 1630, 2018
• for Sea-Doo RXP XRS 300 1630, 2019
• for Sea-Doo RXP XRS 300 1630, 2020
• for Sea-Doo RXP XRS 300 1630, 2021
• for Sea-Doo RXP XRS 300 1630, 2022

On-The-Job Use

• Cooling system repairs on 1630 engines
• Water pump housing reassembly
• Routine gasket replacement during maintenance
• Leak repair at the pump housing mating surface

Specs At A Glance

Good To Know

Q: Do I need to replace this gasket every time the housing is removed? A: Yes, a new gasket should be used each time the water pump housing is taken off to ensure a reliable coolant seal.

Q: Does this gasket fit all years listed? A: It is listed for the 2017 to 2022 RXP XRS 300 1630 models, but you should confirm your serial number and part number 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.