Apex AWO2191 Engine Coolant Thermostat Gasket

Apex AWO2191 Engine Coolant Thermostat Gasket

The Apex AWO2191 engine coolant thermostat gasket is a direct-fit sealing component for thermostat case to head and thermostat housing service. It is used on select Hyundai and Kia applications where a reliable coolant seal is needed during thermostat replacement or cooling system repair.

Key Features

• Engine coolant thermostat gasket for sealing the thermostat assembly
• Fits thermostat case to head and thermostat housing applications
• Compatible with select Hyundai Santa Fe, Tucson, Sonata, XG350, XG300, Tiburon and Kia Optima, Rondo, Sportage, Amanti, Sorento, Sedona, and Sedona-era cooling system service
• Apex part number AWO2191 for catalog and service matching
• Built for vehicle-specific fitment across 1999-2008 model years

Detailed Description

Apex AWO2191 is an engine coolant thermostat gasket used to seal the thermostat case to the cylinder head and the thermostat housing on listed Hyundai and Kia vehicles. This gasket is relevant during thermostat replacement, coolant leak repair, or any service that requires the thermostat assembly to be removed and resealed. Search terms such as Hyundai Santa Fe thermostat gasket, Kia Optima thermostat housing gasket, and Apex AWO2191 coolant gasket all point to this application.

Fits 2008 Hyundai Santa Fe, N/A; Fits 2003-2008 Hyundai Tiburon, N/A; Fits 2008 Hyundai Tucson, N/A; Fits 2008 Kia Optima, N/A; Fits 2008 Kia Rondo, N/A; Fits 2008 Kia Sportage, N/A; Fits 2001-2007 Hyundai Santa Fe, N/A; Fits 2005-2007 Hyundai Tucson, N/A; Fits 2007 Kia Optima, N/A; Fits 2007 Kia Rondo, N/A; Fits 2005-2007 Kia Sportage, N/A; Fits 2004-2006 Kia Amanti, N/A; Fits 2001-2006 Kia Optima, N/A; Fits 2003-2006 Kia Sorento, N/A; Fits 2002-2005 Hyundai Sonata, N/A; Fits 2002-2005 Hyundai XG350, N/A; Fits 2002-2005 Kia Sedona, N/A; Fits 1999-2001 Hyundai Sonata, N/A; Fits 2001 Hyundai XG300, N/A.

Common Repair Uses

• Coolant seepage at the thermostat housing
• Sealing issues after thermostat replacement
• Coolant odor or visible residue around the thermostat area
• Maintenance on a leaking thermostat case to head joint
• Restoring a proper seal during cooling system service

Installation Notes and Tips

Clean both sealing surfaces before installation and inspect the thermostat housing and mating surfaces for corrosion, pitting, or old gasket material. Verify the vehicle application by year, make, and model before service, especially on 2008 Hyundai and Kia vehicles with the 07/14/08 cutoff noted in the fitment data. Use the correct coolant and follow the manufacturer service procedure for reassembly.

Quality Assurance

Apex AWO2191 is cataloged as a vehicle-specific sealing part for the listed Hyundai and Kia applications. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.