Motorad 234-180 Engine Coolant Thermostat

180F Engine Coolant Thermostat

Motorad Standard 234-180 is an engine coolant thermostat built for OE-style temperature control in a wide range of Volkswagen, Volvo, Audi, Porsche, and Ford applications. It opens at 180 degrees F to help regulate coolant flow and maintain stable operating temperature in demanding cooling systems.

For drivers searching for a 180F thermostat for Volkswagen Jetta, Golf, Passat, or Volvo S40 applications, this Motorad 234-180 thermostat provides a direct-fit replacement option with OEM-style construction details.

Key Features

• Start-to-open temperature: 180 degrees F
• OE supplier manufacturing with OEM quality materials and processes
• Copper case and wax compound for quick response to coolant temperature changes
• Standard thermostat design for broad vehicle coverage
• Offset design and air relief valve included where applicable
• OEM-style seals included where applicable
• Sealing flange outside diameter: 2.12 in
• Height between flanges: 1.4 in
• Bypass diameter: 1.38 in
• Bypass length: 1.23 in
• Flange thickness: 0.06 in

Product Details

The Motorad Standard line focuses on OE-spec thermostat construction for consistent coolant regulation and reliable fitment. Part number 234-180 uses a copper case and wax element to react quickly as coolant temperature rises and falls, helping the engine reach and maintain its intended operating range. This thermostat is listed across many fitments, including 1980-2004 Volkswagen Jetta, 1985-2006 Volkswagen Golf, 2000-2004 Volvo S40, and 1983-1991 Porsche 944 applications. This part cross-references Bosch 13378 and Gates 23480 for the same application.

Common Issues It Can Address

• Engine running cooler or hotter than normal
• Slow warm-up after cold starts
• Temperature fluctuation during stop-and-go driving
• Restricted coolant flow caused by a worn thermostat
• Cooling system performance concerns tied to thermostat response

Installation Notes

Verify housing dimensions and bypass measurements before installation. This thermostat does not include a gasket or seal, and no installation tool is included. Confirm the correct 180F application for your vehicle before service, especially on Volkswagen Jetta, Golf, Passat, and Volvo models where multiple thermostat configurations may exist.

Quality Assurance

Motorad manufactures this thermostat as an OE-supplier part using OEM specifications and processes. The design is built to meet the demands of modern cooling systems while maintaining the temperature control expected from a standard replacement thermostat.