420950840 Water Pump Housing Gasket for Sea-Doo Cruise 18-130 1630 2023-2025

Water Pump Housing Gasket for Sea-Doo

This water pump housing gasket for Sea-Doo seals the pump housing to prevent coolant leaks, and it cross-references OEM part 420950840.

Overview

This water pump housing gasket for Sea-Doo is a direct-fit sealing component for the 1630 engine platform. The water pump housing gasket keeps coolant contained at the housing mating surface so the cooling system holds pressure and circulates properly. It suits riders performing routine maintenance or rebuilding the pump on their Sea-Doo watercraft.

Built For Performance

• Precision-cut to match the housing mating surface for a positive seal
• Constructed from coolant-resistant gasket material
• Direct replacement for OEM part number 420950840
• Withstands repeated heat cycles in the cooling system
• Thin profile maintains correct housing mating clearance

Fits These Machines

• for Sea-Doo Cruise 18-130 1630, 2023-2025

On-The-Job Use

• Water pump housing reseals during routine cooling system service
• Coolant leak repair at the pump housing joint
• Impeller or pump rebuild projects on 1630 engines
• Preventive maintenance before seasonal riding

Specs At A Glance

Good To Know

Q: Is this an original Sea-Doo part? A: This is an aftermarket water pump housing gasket that cross-references OEM part 420950840. It is not an original brand product.

Q: Should the gasket be replaced every time the housing is opened? A: Gaskets are single-use sealing components, so fitting a new one whenever the housing is removed is standard practice. Reusing an old gasket risks coolant leaks.

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