420950840 Water Pump Housing Gasket for Sea-Doo Cruise 18-170 1630 2022-2026

Water Pump Housing Gasket for Sea-Doo

The Water Pump Housing Gasket for Sea-Doo is a replacement sealing component that fits between the pump housing and engine case to prevent coolant leaks on 1630-powered watercraft.

Overview

This water pump housing gasket for Sea-Doo seals the mating surface between the pump housing and the engine block, keeping coolant contained and flow steady. It serves riders maintaining a 1630-equipped Sea-Doo who need a fresh gasket during pump service or rebuild. A properly seated water pump housing gasket for Sea-Doo helps avoid drips, pressure loss, and overheating on the water.

Built For Performance

• Precision-cut shape to match the 420950840 housing footprint
• Seals the pump housing to engine case mating surface
• Withstands continuous coolant exposure and heat cycling
• Thin-profile design maintains correct housing clearance
• Direct replacement for the stock gasket position

Fits These Machines

• for Sea-Doo Cruise 18-170 1630, 2022-2026

On-The-Job Use

• Water pump housing reseals during routine maintenance
• Pump rebuilds and impeller service
• Cooling system repairs after leak diagnosis
• Pre-season inspection and refresh

Specs At A Glance

Good To Know

Q: Can this gasket be reused if the housing is removed? A: No, gaskets are designed for single-use sealing and should be replaced each time the housing is separated. Reusing one risks coolant leaks and poor sealing.

Q: Does this gasket need sealant during installation? A: Follow the service manual for your specific model, as some applications call for dry installation while others specify a sealant. Ensure surfaces are clean and flat before fitting.

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