420850948 Water Pump Seal for Sea-Doo GTI STD HO 900 2017-2019

Water Pump Seal for Sea-Doo

This water pump seal for Sea-Doo keeps the cooling system sealed on GTI STD HO 900 models from 2017 to 2019, cross-referencing OEM part 420850948.

Overview

This water pump seal for Sea-Doo is a direct replacement sealing component for the coolant pump on personal watercraft. It prevents coolant from escaping the pump housing and keeps contaminants out of the bearing area so the impeller keeps moving water through the engine. It is made for riders and mechanics servicing Sea-Doo GTI STD HO 900 machines who want a dependable, correctly sized seal.

Built For Performance

• Cross-references OEM part number 420850948 for straightforward replacement
• Seals the water pump housing to stop coolant leaks under operating pressure
• Keeps water and debris out of the pump bearing area to extend component life
• Constructed from seal material suited to continuous contact with coolant
• Designed to match the pump bore and shaft dimensions of the listed models

Fits These Machines

• for Sea-Doo GTI STD HO 900, 2017
• for Sea-Doo GTI STD HO 900, 2018
• for Sea-Doo GTI STD HO 900, 2019

On-The-Job Use

• Routine water pump service and coolant leak repair
• Impeller and pump housing rebuilds
• Pre-season maintenance on personal watercraft
• Workshop repair of overheating or coolant loss issues

Specs At A Glance

Good To Know

Q: How do I know this seal fits my machine? A: It is listed for Sea-Doo GTI STD HO 900 models from 2017 to 2019 and cross-references 420850948. Confirm your model year and serial number before ordering.

Q: Should I replace anything else while the pump is apart? A: Water pump service commonly involves inspecting the impeller, bearing, and housing for wear. Replacing worn parts at the same time can save a second teardown.

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