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Motorad 973-221 Engine Coolant Thermostat
| Brand | Motorad 973-221 |
|---|---|
| Type | Standard |
| Height | 2.3 |
| Gasket Or Seal Included | Yes |
| Jiggle Pin Weep Hole | No |
| Seal Type | O-ring |
| Start to Open Temperature | 221 |
| Bolts Included | No |
| Color | Black, silver |
| Gasket or Seal included | Yes |
| Gasket Type | Seal |
| Gasket/Seal Material | Rubber |
| Hardware included | No |
| Height | 2.30 in |
| Installation Tool Included | No |
| Jiggle Pin Included | No |
| Jiggle Pin Weep Hole | No |
| Material | Plastic, stainless steel, copper |
| Number Of Seals | 1 |
| Opening Temperature | 221 |
| Seal Type | Rubber |
| Start to Open Temperature | 221 deg. f |
| Temperature | 221 deg. f |
| Temperature (Degree) | 221 |
| Product line | Insert |
| Fits | Audi, Seat, and Volkswagen · 18 vehicles |
OE-spec construction. Built with OEM materials and processes for precise cooling system control.
221°F opening temperature. Matches specified thermal calibration for listed applications.
Seal included. Uses an O-ring style seal with rubber sealing material where applicable.
Cross-references Dixie Electric Ltd 15622, Four Seasons 97321 and Motorad 973-221 for the same application. See all 6.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Engine Coolant Thermostat Overview
The Motorad 973-221 engine coolant thermostat is a standard replacement thermostat insert built to OE specifications. It is specified for 221°F operation and includes a housing seal for applications that call for it. This part is a fitment-based choice for Audi A3, Volkswagen Jetta, and related applications that use the same temperature rating.
Key Features
- Standard engine coolant thermostat with OE-style construction
- 221°F opening temperature for specified cooling system calibration
- O-ring seal design with rubber sealing material
- Copper, plastic, and stainless steel construction
- Offset design with air relief valve noted by the manufacturer
- Includes thermostat insert and housing seal where applicable
Detailed Description
Motorad manufactures the 973-221 using OEM-quality materials and OE supplier processes to match the temperature control requirements of the original cooling system. The copper case and wax compound are used to respond quickly to coolant temperature changes, while the offset design and air relief valve support proper coolant flow and system bleeding. This thermostat insert is listed for 2013-2018 Volkswagen Jetta, 2018-2019 Audi A3, and other confirmed applications in the fitment table. The 973-221 is also cross-referenced to Four Seasons 97321 and URO 04E121113F for the same application.
Common Cooling System Issues It May Address
- Engine running cooler or warmer than specified
- Delayed coolant temperature regulation after startup
- Temperature fluctuation caused by a worn thermostat element
- Seal leakage at the thermostat housing interface
- Cooling system performance concerns tied to incorrect thermostat opening temperature
Installation Notes and Tips
Verify the OE-specified temperature and housing style before installation. This part is listed with a seal included, while bolts and installation tools are not included. Follow the vehicle service procedure for coolant draining, housing inspection, and proper seal seating. Confirm fitment against the exact application notes for Audi A3, Volkswagen Jetta, and other listed models before replacement.
Quality Assurance
Motorad states that this thermostat is manufactured to OEM specifications and processes by an OE supplier, with materials selected to meet demanding automotive cooling system requirements.
| Year | Make | Model | Liters | Cylinders | Notes |
|---|---|---|---|---|---|
| 2019 | Audi | A3 | 1.4L | L4 | Temperature 221F; Includes thermostat insert and housing seal; OE Specified Temperature; Insert |
| 2019 | Seat | Toledo | 1.6L | L4 | Includes thermostat insert and housing seal; Insert |
| 2018 | Audi | A3 | 1.4L | L4 | Temperature 221F; Includes thermostat insert and housing seal; OE Specified Temperature; Insert |
| 2018 | Seat | Toledo | 1.6L | L4 | Includes thermostat insert and housing seal; Insert |
| 2018 | Volkswagen | Jetta | 1.4L | L4 | Temperature 221F; Includes thermostat insert and housing seal; Internal Mounted; Located on Water Pump; OE Specified Temperature; Insert |
| 2017 | Audi | A3 Sportback e-tron | 1.4L | L4 | Temperature 221F; Includes thermostat insert and housing seal; External Mounted; Thermostat Located In Water Pump Housing; OE Specified Temperature; Insert |
| 2017 | Seat | Ibiza | 1.6L | L4 | Includes thermostat insert and housing seal; Insert |
| 2017 | Seat | Toledo | 1.6L | L4 | Includes thermostat insert and housing seal; Insert |
| 2017 | Volkswagen | Jetta | 1.4L | L4 | Temperature 221F; Includes thermostat insert and housing seal; Internal Mounted; Located on Water Pump; OE Specified Temperature; Insert |
| 2016 | Audi | A3 Sportback e-tron | 1.4L | L4 | Temperature 221F; Includes thermostat insert and housing seal; Internal Mounted; Located on Water Pump; OE Specified Temperature; Insert |
| 2016 | Seat | Ibiza | 1.6L | L4 | Includes thermostat insert and housing seal; Insert |
| 2016 | Seat | Toledo | 1.6L | L4 | Includes thermostat insert and housing seal; Insert |
| 2016 | Volkswagen | Caddy | 1.2L | L4 | Temperature 221F; Includes thermostat insert and housing seal; Inner Replacement; OE Specified Temperature; Insert |
| 2016 | Volkswagen | Jetta | 1.4L | L4 | Temperature 221F; Includes thermostat insert and housing seal; Internal Mounted; Located on Water Pump; OE Specified Temperature; Insert |
| 2015 | Volkswagen | Caddy | 1.2L | L4 | Temperature 221F; Includes thermostat insert and housing seal; Inner Replacement; OE Specified Temperature; Insert |
| 2015 | Volkswagen | Jetta | 1.4L | L4 | Temperature 221F; Includes thermostat insert and housing seal; Internal Mounted; Located on Water Pump; OE Specified Temperature; Insert |
| 2014 | Volkswagen | Jetta | 1.4L | L4 | Temperature 221F; Includes thermostat insert and housing seal; Internal Mounted; Located on Water Pump; OE Specified Temperature; Insert |
| 2013 | Volkswagen | Jetta | 1.4L | L4 | Temperature 221F; Includes thermostat insert and housing seal; Internal Mounted; Located on Water Pump; OE Specified Temperature; Insert |
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