Apex AWO2185 Engine Water Pump O-Ring

Engine Water Pump O-Ring for Toyota and Ford Applications

Apex AWO2185 is an engine water pump O-ring used in sealing-system service for select Toyota, Ford, Mercury, and Pontiac vehicles. This sealing component helps maintain a tight seal at the thermostat housing or water pump-related connection points where listed in the fitment data.

Key Features

• Brand: Apex
• Part number: AWO2185
• Category: Belts and Cooling > Gaskets and Sealing Systems
• Engine water pump O-ring / thermostat seal application
• Compatible with select 1998-2006 Toyota, Ford, Mercury, and Pontiac models
• Fits 2003-2006 Pontiac Vibe, thermostat O-ring
• Fits 2005-2006 Toyota Corolla, thermostat seal
• Fits 2003-2006 Toyota Matrix, thermostat seal

Detailed Description

The Apex AWO2185 is a sealing O-ring for cooling-system service on specific vehicles, including Toyota Corolla, Toyota Matrix, Pontiac Vibe, Ford Focus, Ford Escort, Ford Contour, Mercury Cougar, and Mercury Mystique. In the listed applications, it is used at the thermostat seal or housing O-ring location to help restore a proper seal during cooling system repair. If you are replacing a thermostat seal on a 2005-2006 Toyota Corolla or a thermostat O-ring on a 2003-2006 Pontiac Vibe, this part number identifies the correct sealing component for those applications.

What It Helps Address

• Coolant seepage at the thermostat housing
• Sealing wear from age, heat, and compression
• Leak points created during thermostat service
• Loss of seal integrity at the water pump-related sealing surface
• Repeat cooling-system leaks after prior service

Installation Notes and Tips

Inspect the sealing groove and mating surfaces before installation. Remove old residue, coolant deposits, and debris so the O-ring seats evenly. Use the exact fitment listing for your vehicle year and model, and verify whether your application calls for a thermostat seal or housing O-ring before ordering Apex AWO2185.

Quality Assurance

Apex AWO2185 is cataloged as a direct-fit sealing part for the listed applications. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.