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Motorad 373-194 Engine Coolant Thermostat
| Brand | Motorad 373-194 |
|---|---|
| Material | Steel |
| 10522 | No |
| Sealing Flange Outside Diameter | 2.13 |
| Sealing Flange Outside Diameter | 54.10 |
| Height Between Flanges | 1.61 |
| Height Between Flanges | 40.89 |
| MAP Controlled | No |
| Design | Oem |
| Color | Silver |
| Gasket Or Seal Required | Yes |
| Bolt Hole Quantity | 0 |
| Type | Estándar |
| Type | Standard |
| Height | 2.66 |
| Height | 67.56 |
| Grade Type | Oem |
| Gasket Or Seal Included | No |
| Gasket Quantity | 0 |
| Jiggle Pin Weep Hole | Yes |
| Start to Open Temperature | 194.0 |
| Start to Open Temperature | 90.00 |
| Installation Tool Included | No |
| Flange Thickness | 0.04 |
| Flange Thickness | 1.02 |
| Depth | 1.61 |
| Depth | 40.89 |
| Electric | No |
| 9841 | 0 |
| 9844 | 1 |
| 9852 | 1 |
| Product line | Standard |
| Fits | Hyundai and Kia · 6 vehicles |
OE supplier quality. Built with OEM materials and processes to meet demanding cooling-system standards.
Copper case design. Wax compound delivers rapid response to coolant temperature changes.
OEM thermostat. Standard replacement with a jiggle pin weep hole for reliable coolant flow.
Cross-references Motorad 373-194, 194-373 and 255002G670 for the same application. See all 3.
Motorad 373-194 Engine Coolant Thermostat
The Motorad 373-194 engine coolant thermostat is an OEM-style replacement built with steel construction and OE-supplier manufacturing standards. It is designed to respond quickly to coolant temperature changes, helping maintain stable engine operating temperature in Hyundai Sonata and Kia Optima applications.
Key Features
- Engine coolant thermostat for the cooling system
- OEM design and grade type for factory-style fit and function
- Steel body with silver finish
- Starts to open at 194°F / 90°C
- Copper case and wax compound for responsive temperature control
- Jiggle pin weep hole included in the thermostat design
- Gasket or seal required for installation
Product Details
Motorad Standard part number 373-194 is built to OEM specifications and processes for direct replacement use in the engine cooling system. The thermostat is engineered to regulate coolant flow based on temperature, supporting consistent warm-up and operating control in 2013-2015 Hyundai Sonata and 2014-2016 Kia Optima models. This part cross-references 194-373 and 255002G670 for the same application.
The Motorad Standard line focuses on OE-style cooling system service parts that match factory requirements for material selection, temperature response, and fitment. For buyers searching for a 194 degree thermostat for Hyundai Sonata or Kia Optima, part number 373-194 provides a direct replacement option with OEM-style construction.
Vehicle Fitment
- Fits 2014-2016 Kia Optima, N/A, Standard
- Fits 2013-2015 Hyundai Sonata, N/A, Standard
Common Issues This Part May Address
- Engine running cooler or hotter than normal
- Delayed coolant circulation during warm-up
- Temperature fluctuation caused by a worn thermostat
- Cooling system service requiring thermostat replacement
- Restoring factory-style coolant temperature regulation
Installation Notes
Use a new gasket or seal during installation, as one is required and not included. Verify the thermostat orientation and cooling system condition before reassembly, and follow the vehicle service procedure for coolant refill and bleeding. Confirm fitment by model year before ordering Motorad 373-194.
Quality Assurance
Manufactured by an OE supplier using OEM-quality materials and safety standards, this thermostat is built for demanding automotive cooling systems and follows OEM specifications for consistent operation.
| Year | Make | Model | Liters | Cylinders | Fuel Type | Notes |
|---|---|---|---|---|---|---|
| 2016 | Kia | Optima | 2.4L | L4 | FULL HYBRID EV-GAS (FHEV) | Standard |
| 2015 | Hyundai | Sonata | 2.4L | L4 | FULL HYBRID EV-GAS (FHEV) | Standard |
| 2015 | Kia | Optima | 2.4L | L4 | FULL HYBRID EV-GAS (FHEV) | Standard |
| 2014 | Hyundai | Sonata | 2.4L | L4 | FULL HYBRID EV-GAS (FHEV) | Standard |
| 2014 | Kia | Optima | 2.4L | L4 | FULL HYBRID EV-GAS (FHEV) | Standard |
| 2013 | Hyundai | Sonata | 2.4L | L4 | FULL HYBRID EV-GAS (FHEV) | Standard |
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