420950840 Water Pump Housing Gasket for Sea-Doo GTS DT 1503 2014

Water Pump Housing Gasket for Sea-Doo

This water pump housing gasket for Sea-Doo seals the mating surface between the pump housing and the engine case to prevent coolant leaks on 1503-powered machines, and it cross-references OEM part 420950840.

Overview

This water pump housing gasket for Sea-Doo is a direct-fit sealing component for the closed-loop cooling system on 1503 engines. It sits between the water pump housing and the engine block to keep coolant contained under pressure and heat. Riders and mechanics rebuilding or servicing a Sea-Doo GTS DT will find this gasket essential for a leak-free reassembly.

Built For Performance

• Precision-cut to match the OEM 420950840 sealing profile
• Constructed from coolant-resistant gasket material
• Withstands the heat cycling of marine engine operation
• Compresses evenly to seal the pump housing mating surface
• Direct replacement for the factory gasket
• Sold individually for one pump housing installation

Fits These Machines

• for Sea-Doo GTS DT 1503 (2014)

On-The-Job Use

• Water pump housing resealing during engine rebuilds
• Cooling system repairs after overheating events
• Routine maintenance on 1503 engine-powered watercraft
• Leak correction at the pump housing mating surface

Specs At A Glance

Good To Know

Q: Does this gasket need sealant during installation? A: Most water pump housing gaskets install dry, but always follow the service manual procedure for your specific engine. Clean both mating surfaces thoroughly before fitting the new gasket.

Q: How do I know if my water pump housing gasket needs replacing? A: Coolant weeping at the pump housing seam or a persistent coolant loss without an external hose leak usually points to a failed gasket. Replace it any time the housing is removed for service.

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