420950840 Water Pump Housing Gasket for Sea-Doo GTI SE 130 1630 2020-2026

Water Pump Housing Gasket for Sea-Doo

This water pump housing gasket for Sea-Doo seals the pump housing to the engine case on 1630-powered models, and it cross-references OEM part 420950840.

Overview

This water pump housing gasket for Sea-Doo is a sealing component that fits between the water pump housing and its mounting surface. It keeps coolant and water contained in the pump assembly so the impeller housing holds pressure and stays leak-free. It is aimed at owners and shops servicing 1630-powered Sea-Doo watercraft.

Built For Performance

• Precision-cut shape matched to the housing bolt pattern and port openings
• Material selected to handle the heat and moisture of marine cooling systems
• Compresses evenly across the mating surface to resist weeping and pressure loss
• Replaces OEM 420950840 for direct swap-in service
• Single-piece gasket with no trimming or modification needed

Fits These Machines

• for Sea-Doo GTI SE 130 with 1630 engine, model years 2020 through 2026
• for Sea-Doo models sharing the 1630 water pump housing assembly

On-The-Job Use

• Pump housing reseal during impeller or wear ring service
• Scheduled cooling system maintenance before the season starts
• Repair after overheating or a leak found at the housing
• Freshwater and saltwater recreational riding

Specs At A Glance

Good To Know

Q: Can this gasket be reused if the housing has to come off again? A: No, gaskets are single-use, so fit a fresh one any time the housing is separated. Reusing a compressed gasket risks a coolant or water leak.

Q: Should I clean the mating surfaces before installing it? A: Yes, remove all old gasket residue and degrease both surfaces so the new gasket seats flat. A clean surface means a far better seal.

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