420950840 Water Pump Housing Gasket for Sea-Doo GTI P SE 130 1503 2018

Water Pump Housing Gasket for Sea-Doo

This water pump housing gasket for Sea-Doo personal watercraft seals the joint between the pump housing and engine case, and it matches OEM part number 420950840.

Overview

This water pump housing gasket for Sea-Doo is a direct-seal replacement designed to stop coolant or water leaks at the pump housing mating surface. It keeps a tight seal so the cooling system of the 1503 engine circulates properly under load. It is made for riders servicing a Sea-Doo GTI P SE 130 or any machine that runs this housing.

Built For Performance

• Fits between the water pump housing and engine case for a positive seal
• Cross-references OEM part number 420950840
• Built to withstand continuous coolant and water exposure
• Compresses evenly to match the housing mating surface
• Simple bolt-on replacement with no modification required

Fits These Machines

• for Sea-Doo GTI P SE 130 1503
• for Sea-Doo models running the 1503 engine with part 420950840

On-The-Job Use

• Routine cooling system service and resealing
• Pump housing removal and rebuild jobs
• Leak repair after overheating or gasket failure
• Pre-season maintenance on personal watercraft

Specs At A Glance

Good To Know

Q: Should I replace this gasket every time the housing is removed? A: Yes, gaskets are single-use and should be swapped out anytime the housing is separated to keep a reliable seal.

Q: Do I need sealant with this gasket? A: It is designed to seal on its own, though many installers confirm the mating surfaces are clean and flat before assembly.

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