420950840 Water Pump Housing Gasket for Sea-Doo GTX P LTD 300 1630 2018

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, preventing coolant leaks on the 1630 engine used in the GTX P LTD 300; it cross-references OEM part number 420950840.

Overview

This water pump housing gasket for Sea-Doo is a direct-fit sealing component that keeps coolant contained where the pump housing mates with the engine block. It is built for riders and mechanics servicing the 1630 engine in the GTX P LTD 300, and it installs in the same location as the original gasket. A fresh water pump housing gasket for Sea-Doo helps restore a proper seal and protect cooling system performance.

Built For Performance

• Precision-cut to match the pump housing mating surface
• Constructed from coolant-resistant gasket material
• Cross-references OEM part number 420950840
• Designed for the 1630 engine platform
• Seals the housing-to-engine joint against coolant seepage

Fits These Machines

• for Sea-Doo GTX P LTD 300 1630 (2018)

On-The-Job Use

• Water pump housing resealing during cooling system service
• Coolant leak repair at the pump housing joint
• Routine maintenance on the 1630 engine
• Rebuilds and gasket replacement jobs

Specs At A Glance

Good To Know

Q: Does this gasket require sealant? A: Many installers fit this gasket dry, but always follow the service manual for the 1630 engine to confirm whether sealant is specified. Clean both mating surfaces before installation.

Q: Is this an original Sea-Doo part? A: This is an aftermarket gasket made for Sea-Doo watercraft and cross-references OEM number 420950840. Always verify the part number against your machine 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.