Motorad 7273-180 Engine Coolant Thermostat
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Motorad
 Fail-Safe

Motorad 7273-180 Engine Coolant Thermostat

Brand Motorad 7273-180
Sealing Flange Outside Diameter 2.64
Gasket Or Seal Included No
Jiggle Pin Weep Hole No
Bypass Diameter 1.30 in
Bypass Length 1.01 in
Flange Thickness 0.068 in
Installation Tool Included No
Temperature 180 deg. f
Temperature (Degree) 180
Product line Fail-Safe
Fits Volkswagen · 9 vehicles

OE supplier quality. Built with OEM materials and processes for dependable cooling performance.

Copper case. Wax compound responds quickly to coolant temperature changes.

180°F thermostat. Opens at the specified temperature for precise engine cooling control.

Cross-references Four Seasons 77390, Motorad 7273-180 and NI for the same application. See all 4.

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Motorad Fail-Safe Thermostat for Vanagon

The Motorad Fail-Safe Engine Coolant Thermostat, part number 7273-180, is built for 1983-1991 Volkswagen Vanagon applications that need precise coolant temperature control. It opens at 180 degrees F and uses a fail-safe design that locks open after an overheating event to help protect the cooling system.

Manufactured to OEM specifications with OE-supplier quality materials, this Motorad thermostat is made for demanding cooling systems. The copper case and wax compound support fast reaction to coolant temperature changes, helping maintain stable engine operating temperature in Volkswagen Vanagon service.

Key Features

  • Fits 1983-1991 Volkswagen Vanagon, N/A
  • Motorad Fail-Safe line for overheating protection
  • 180 degree F thermostat opening temperature
  • Copper case and wax compound for responsive temperature control
  • OEM-quality materials and manufacturing processes
  • Sealing flange outside diameter: 2.64 in
  • Bypass diameter: 1.30 in
  • Bypass length: 1.01 in
  • Flange thickness: 0.068 in

Detailed Description

Motorad 7273-180 is an engine coolant thermostat designed for Volkswagen Vanagon cooling systems that require a 180 degree F operating range. The Fail-Safe design is intended to lock open after an overheating condition, giving the cooling system a built-in fallback response. This makes it a direct choice for drivers searching for a 1983-1991 Volkswagen Vanagon engine coolant thermostat with fail-safe design and 180F temperature rating. This part cross-references Four Seasons 77390 for the same application.

The thermostat is manufactured with OEM specifications and processes, and the copper case with wax compound helps it react quickly to coolant temperature changes. Motorad 7273-180 is also referenced by NI and SS180-3727 interchange numbers.

Common Problems This Part Addresses

  • Engine running hotter than normal
  • Thermostat sticking closed or opening late
  • Unstable coolant temperature during driving
  • Cooling system overheating concerns in Volkswagen Vanagon service
  • Need for a 180 degree F thermostat replacement

Installation Notes and Tips

Verify the thermostat housing dimensions before installation, including the 2.64 in sealing flange outside diameter and bypass measurements. This thermostat does not include a gasket or seal, and no installation tool is included, so the correct sealing components should be selected separately for the vehicle service procedure.

For Volkswagen Vanagon cooling system repairs, confirm the thermostat orientation and housing condition before reassembly. Proper coolant fill and bleeding are important after installation to restore normal temperature control.

Quality Assurance

Motorad manufactures this thermostat as an OE-supplier part using OEM-quality materials and safety standards. The copper case and wax compound are selected to support consistent response in demanding automotive cooling systems.

Related reading

This part fits 9 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
1991VolkswagenVanagon2.1LH4N/AEngine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe
1990VolkswagenVanagon2.1LH4N/AEngine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe
1989VolkswagenVanagon2.1LH4N/AEngine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe
1988VolkswagenVanagon2.1LH4N/AEngine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe
1987VolkswagenVanagon2.1LH4N/AEngine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe
1986VolkswagenVanagon2.1LH4N/AEngine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe
1985VolkswagenVanagon1.9LH4N/AEngine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe
1984VolkswagenVanagon1.9LH4N/AEngine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe
1983VolkswagenVanagon1.9LH4N/AEngine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe
Directly replaces or cross-references 4 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Four Seasons — 77390Motorad — 7273-180NISS180-3727