Motorad 442-180 Engine Coolant Thermostat

Engine Coolant Thermostat for OE-Style Cooling Control

The Motorad Standard 442-180 engine coolant thermostat is built for precise temperature regulation in demanding cooling systems. It opens at 180°F and uses OEM-style materials and construction to support stable engine operating temperature in a wide range of Hyundai and Kia applications.

Motorad’s Standard line focuses on OE-style replacement parts for everyday service work. This thermostat follows OEM specifications and processes, with a copper case and wax compound for quick response to coolant temperature changes. The offset design, air relief valve, and jiggle pin weep hole help support proper coolant flow and air bleeding where applicable.

Key Features

• Part number 442-180 engine coolant thermostat
• 180°F start-to-open temperature for OE-style thermal control
• Copper case and wax compound for responsive operation
• Offset design with air relief valve where applicable
• Jiggle pin weep hole included
• Standard type thermostat for direct replacement service
• Sealing flange outside diameter: 2.13 in.
• Height: 2.03 in.; height between flanges: 1.42 in.
• Bypass diameter: 1.09 in.; bypass length: 1.39 in.
• Flange thickness: 0.05 in.

Detailed Description

The Motorad 442-180 is an OE-style engine coolant thermostat designed to maintain the correct coolant temperature in vehicles that call for a 180°F thermostat. It is a direct service part for many Hyundai Elantra, Tucson, Sonata, Accent, Santa Fe, Tiburon, and Kia Sportage, Optima, Sorento, Forte, Rio, Soul, Spectra, and related applications. This part cross-references Four Seasons 14818 and Davico Mfg 48258 for the same application.

Built with OEM-quality materials, the thermostat is intended to meet the demands of modern cooling systems while supporting consistent warm-up and temperature regulation. The copper case and wax element are used to react quickly to coolant temperature changes, helping the engine reach and hold its intended operating range.

What It Helps Address

• Engine running too cool or taking too long to reach operating temperature
• Temperature fluctuations caused by a worn thermostat
• Coolant flow control issues in 180°F thermostat applications
• Air trapped in the cooling system after service
• Replacement needs for Hyundai and Kia OE thermostat applications

Installation Notes and Tips

Verify the required thermostat temperature and dimensions before installation. This unit does not include a gasket or seal, and installation hardware is not included. Clean the housing sealing surfaces thoroughly, inspect the coolant system for contamination, and follow the vehicle service procedure for coolant refill and air bleeding. The jiggle pin weep hole should be oriented according to the manufacturer’s service instructions when applicable.

Quality Assurance

Motorad manufactures this thermostat using OEM-quality materials and OE-supplier standards, with construction based on OEM specifications and processes. The Standard line is positioned as a direct replacement option for routine cooling-system service on supported Hyundai and Kia vehicles, including 2013-2016 Hyundai Santa Fe Sport, 2005-2016 Kia Sportage, and 2009-2015 Kia Optima applications.