420950840 Water Pump Housing Gasket for Sea-Doo GTX LTD 325 1630 2025-2026

Water Pump Housing Gasket for Sea-Doo

This water pump housing gasket for Sea-Doo seals the pump housing on 1630-powered models to prevent coolant leaks, built to OEM cross-reference 420950840.

Overview

This water pump housing gasket for Sea-Doo creates a reliable seal between the water pump housing and the engine on the 1630 platform. It stops coolant from weeping past the mating surface so this water pump housing gasket keeps cooling performance consistent. It suits riders servicing a GTX LTD 325.

Built For Performance

• Direct fitment for the 1630 engine water pump housing
• Seals the housing mating surface to stop coolant seepage
• Cross-references OEM part 420950840
• Resists heat and coolant breakdown over time
• Built to original-equipment sealing dimensions

Fits These Machines

• for Sea-Doo GTX LTD 325 1630 (2025-2026)

On-The-Job Use

• Routine cooling system service
• Water pump housing removal and reinstall
• Engine rebuild and repair jobs

Specs At A Glance

Good To Know

Q: What does this gasket seal? A: It seals the joint between the water pump housing and the engine, keeping coolant contained. Q: Should I replace it during pump service? A: Yes, a fresh gasket is recommended any time the housing is removed to prevent leaks.

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