Motorad 7323-180 Engine Coolant Thermostat

Motorad Fail-Safe Thermostat 7323-180

The Motorad Fail-Safe 7323-180 engine coolant thermostat is built for direct replacement in select Kia and Mazda applications. It uses a 180 degree F temperature rating, a copper case, and wax compound construction to react quickly to coolant temperature changes.

Compatible with 1986-1989 Mazda 626, 1988 Mazda MX-6, 1990-1993 Mazda B2600, 1994-2000 Kia Sephia, and 2001-2003 Kia Rio, this thermostat is part of Motorad’s Fail-Safe line for overheating protection.

Key Features

• 180 degree F thermostat opening temperature
• Copper case and wax compound for fast temperature response
• Offset design with air relief valve
• OEM-style seals included where applicable
• Manufactured to OEM specifications and processes
• Sealing flange outside diameter: 2.05 in
• Flange thickness: 0.05 in

Product Details

Motorad 7323-180 is an engine coolant thermostat designed to regulate coolant flow at the specified 180 degree F setting. The Fail-Safe design allows continuous coolant flow in overheating situations, helping the cooling system maintain circulation when temperature control becomes critical. This makes it a direct-fit choice for drivers servicing Mazda 626, Mazda MX-6, Mazda B2600, Kia Sephia, and Kia Rio cooling systems.

This part cross-references Four Seasons 73238 for the same application. The Motorad 7323-180 thermostat is manufactured with OEM-quality materials and safety standards by an OE supplier, with construction intended to match factory fit and function.

What It Helps Address

• Engine running too cool or too hot due to thermostat wear
• Delayed coolant circulation during warm-up
• Temperature fluctuation in the cooling system
• Overheating concerns tied to a sticking thermostat
• Cooling system service on select Kia Rio, Kia Sephia, and Mazda models

Installation Notes

Verify the 180 degree F temperature rating and sealing flange dimensions before installation. This thermostat does not include a gasket or seal, and no installation tool is included. Inspect the housing, sealing surfaces, and coolant condition during service, and replace worn seals or related cooling components as needed.

Quality Assurance

Motorad manufactures this thermostat to OEM specifications using OE-supplier processes and materials. The Fail-Safe design and copper case construction are intended to support reliable operation in demanding automotive cooling systems.