420950840 Water Pump Housing Gasket for Sea-Doo GTI Rental 1503 2006-2010

Water Pump Housing Gasket for Sea-Doo

This water pump housing gasket for Sea-Doo seals the housing to the engine block on 1503-powered GTI Rental models, with an OEM cross-reference of 420950840.

Overview

The water pump housing gasket for Sea-Doo is a direct-fit sealing component for the 1503 engine platform. It seals the joint between the pump housing and the engine case to keep coolant flowing where it should. This gasket is for riders and shops servicing GTI Rental machines from 2006 through 2010.

Built For Performance

• Precision-cut to match the OEM 420950840 sealing surface
• Constructed for the 1503 four-stroke engine platform
• Seals the pump housing joint against coolant seepage
• Withstands the heat cycling of marine engine operation
• Direct replacement for the original housing gasket

Fits These Machines

• for Sea-Doo GTI Rental 1503, 2006-2010

On-The-Job Use

• Coolant system service on 1503-powered GTI Rental craft
• Water pump removal and reinstallation jobs
• Routine maintenance in rental fleet workshops
• Impeller or wear ring service that requires opening the housing

Specs At A Glance

Good To Know

Q: Should this gasket be replaced every time the housing is removed? A: Yes, gaskets are single-use sealing items and should be swapped whenever the housing is taken off. Reusing a compressed gasket risks coolant leaks.

Q: Does this gasket fit other Sea-Doo models with the 1503 engine? A: It is listed for the GTI Rental 1503 from 2006 to 2010, but other 1503 platforms may share the same housing. Confirm your part number before ordering.

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