420950840 Water Pump Housing Gasket for Sea-Doo Speedster 430 1503 2008

Water Pump Housing Gasket for Sea-Doo

This water pump housing gasket for Sea-Doo seals the joint between the pump housing and engine case on 1503-powered craft, and it is a direct replacement for OEM part 420950840.

Overview

This water pump housing gasket for Sea-Doo is a sealing component that fits between the pump housing and the engine block to prevent coolant and water leaks. The gasket for Sea-Doo 1503 engines helps maintain proper cooling system pressure so the engine runs at the right temperature. It suits riders and mechanics servicing the 2008 Speedster 430 or other 1503-equipped machines.

Built For Performance

• Direct replacement for OEM part number 420950840
• Precision-cut to match the pump housing mating surface
• Seals coolant passages against leakage under pressure
• Resists heat and water exposure typical of marine cooling systems
• Simple bolt-on fit during water pump service

Fits These Machines

• for Sea-Doo Speedster 430 with 1503 engine
• for Sea-Doo models using 1503 engine and part 420950840

On-The-Job Use

• Water pump housing resealing during cooling system repairs
• Routine maintenance on 1503-powered Sea-Doo watercraft
• Replacing a worn or leaking housing gasket

Specs At A Glance

Good To Know

Q: Does this gasket fit my 2008 Speedster 430? A: It is listed for Sea-Doo 1503-equipped machines including the 2008 Speedster 430, but confirm your engine and part number before ordering.

Q: Is this an original Sea-Doo part? A: No, this is an aftermarket gasket for Sea-Doo applications that cross-references OEM part 420950840.

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