420950840 Water Pump Housing Gasket for Sea-Doo Wake STD 155 1503 2017

Water Pump Housing Gasket for Sea-Doo

The Water Pump Housing Gasket for Sea-Doo seals the pump housing to prevent coolant leaks and maintain proper cooling system pressure on 1503 engine watercraft; it cross-references OEM part 420950840.

Overview

This water pump housing gasket for Sea-Doo is a direct-fit sealing component for the 1503 engine used in 2017 Wake STD 155 models. It seals the joint between the water pump housing and the engine block. This gasket is intended for riders replacing a worn or leaking seal during routine maintenance.

Built For Performance

• Cross-references OEM part 420950840 for a match to the original seal profile
• Precision-cut to seal the water pump housing mating surface
• Constructed to withstand continuous coolant and heat exposure
• Designed for the 1503 engine platform
• Helps maintain proper cooling system pressure

Fits These Machines

• for Sea-Doo Wake STD 155 1503, 2017

On-The-Job Use

• Water pump housing resealing during routine maintenance
• Cooling system repair after a leak is detected at the housing joint
• Engine reassembly after water pump service
• Preventive replacement during impeller or wear ring service

Specs At A Glance

Good To Know

Q: Does this gasket require sealant during installation? A: Most water pump housing gaskets install dry, but always follow the service manual for your specific model and torque the housing bolts to spec.

Q: How do I know if my water pump housing gasket needs replacing? A: Coolant weeping at the housing joint, overheating, or a pressure test failure are common signs that the gasket has failed and should be replaced.

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