5 Best Thermostats for 5.7 Hemi (2026): Fitment Picks
Choose a 5.7 Hemi thermostat by factory part number, VIN and opening temperature. Most verified replacement listings here describe 203°F OE-style parts; a 180°F part is not a 195°F part.
With so many options on the market, it can be overwhelming to choose the best thermostat for your needs. That’s why we’ve done the research for you and compiled a list of the top 5 thermostats for 5.7 Hemi engines.
In this article, we’ll review each product in detail and provide you with all the information you need to make an informed decision.
Top 5 Thermostats for 5.7 Hemi Engines: listing-checked listing-checked
To help you make an informed decision on the best thermostat for your 5.7 Hemi engine, we’ve ranked the products based on their overall score out of 100. The table below lists the products in order from highest to lowest score, along with their best features and overall score.
| # | Thermostat | Fitment check | Amazon |
|---|---|---|---|
| 1 |  MotoRad 48792 OE Type Thermostat, Stainless Steel | OE-style 203°F listing; verify part number with VIN | View on Amazon |
| 2 |  203°F Thermostat 52028898AE for 5.7 Hemi | 203°F 52028898AE listing; check supersession and VIN | View on Amazon |
| 3 |  203°F Thermostat for Ram 5.7 Hemi 2003–2018 | 2003–2018 listing; verify year and housing | View on Amazon |
| 4 |  Gates Thermostat for Ram 1500 5.7 Hemi | 2011–2020 listing; check exact Gates part and VIN | View on Amazon |
| 5 |  203°F Thermostat 52028898AE for Dodge Ram | 203°F 52028898AE listing; confirm supersession | View on Amazon |
5 Best Thermostats for 5.7 Hemi Engines
1. 1. MotoRad 48792 OE Type Thermostat, Stainless Steel
MotoRad 48792 OE Type Thermostat, Stainless Steel is a thermostat listing. OE-style 203°F listing; verify part number with VIN. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
Key Features:
MotoRad 48792 OE Type Thermostat, Stainless Steel is a thermostat listing. OE-style 203°F listing; verify part number with VIN. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
- MotoRad 48792 OE Type Thermostat, Stainless Steel is a thermostat listing. OE-style 203°F listing; verify part number with VIN. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
- MotoRad 48792 OE Type Thermostat, Stainless Steel is a thermostat listing. OE-style 203°F listing; verify part number with VIN. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
- MotoRad 48792 OE Type Thermostat, Stainless Steel is a thermostat listing. OE-style 203°F listing; verify part number with VIN. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
- MotoRad 48792 OE Type Thermostat, Stainless Steel is a thermostat listing. OE-style 203°F listing; verify part number with VIN. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
Listing and Fitment Notes
MotoRad 48792 OE Type Thermostat, Stainless Steel is a thermostat listing. OE-style 203°F listing; verify part number with VIN. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
Comparison to Similar Products:
MotoRad 48792 OE Type Thermostat, Stainless Steel is a thermostat listing. OE-style 203°F listing; verify part number with VIN. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
Table of Features:
| Feature | Description | OE-style 203°F listing; verify part number with VIN |
| OE Recommended Replacement Part | This thermostat is recommended by GM for use in their vehicles. | OE-style 203°F listing; verify part number with VIN |
| Manufactured to Meet OE Specifications | The thermostat is made to meet GM Original Equipment specifications for fit, form, and function. | OE-style 203°F listing; verify part number with VIN |
| Controls Coolant Flow | The thermostat controls the flow of coolant through the radiator to enable the engine to reach and maintain its normal operating temperature. | OE-style 203°F listing; verify part number with VIN |
| High-Quality Materials | The thermostat is made with high-quality materials for long-lasting durability. | OE-style 203°F listing; verify part number with VIN |
MotoRad 48792 OE Type Thermostat, Stainless Steel is a thermostat listing. OE-style 203°F listing; verify part number with VIN. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
2. 2. 203°F Thermostat 52028898AE for 5.7 Hemi
203°F Thermostat 52028898AE for 5.7 Hemi is a thermostat listing. 203°F 52028898AE listing; check supersession and VIN. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
Key Features:
203°F Thermostat 52028898AE for 5.7 Hemi is a thermostat listing. 203°F 52028898AE listing; check supersession and VIN. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
- 203°F Thermostat 52028898AE for 5.7 Hemi is a thermostat listing. 203°F 52028898AE listing; check supersession and VIN. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
- 203°F Thermostat 52028898AE for 5.7 Hemi is a thermostat listing. 203°F 52028898AE listing; check supersession and VIN. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
- 203°F Thermostat 52028898AE for 5.7 Hemi is a thermostat listing. 203°F 52028898AE listing; check supersession and VIN. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
- 203°F Thermostat 52028898AE for 5.7 Hemi is a thermostat listing. 203°F 52028898AE listing; check supersession and VIN. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
Listing and Fitment Notes
203°F Thermostat 52028898AE for 5.7 Hemi is a thermostat listing. 203°F 52028898AE listing; check supersession and VIN. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
Comparison to Similar Products:
203°F Thermostat 52028898AE for 5.7 Hemi is a thermostat listing. 203°F 52028898AE listing; check supersession and VIN. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
203°F Thermostat 52028898AE for 5.7 Hemi is a thermostat listing. 203°F 52028898AE listing; check supersession and VIN. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
Table of Features:
| Feature | Description | 203°F 52028898AE listing; check supersession and VIN |
| OE Equivalent | The thermostat is equivalent to OE specifications, ensuring proper fit and function. | 203°F 52028898AE listing; check supersession and VIN |
| High-Quality Construction | Made with high-quality stainless steel and copper construction for long-lasting durability. | 203°F 52028898AE listing; check supersession and VIN |
| Patented ELAC Heat Motor | Provides consistent valve response for precise engine cooling. | 203°F 52028898AE listing; check supersession and VIN |
| Jiggle Pin and Check Valve Design | The unique design ensures air venting and consistent valve response. | 203°F 52028898AE listing; check supersession and VIN |
203°F Thermostat 52028898AE for 5.7 Hemi is a thermostat listing. 203°F 52028898AE listing; check supersession and VIN. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
3. 3. 203°F Thermostat for Ram 5.7 Hemi 2003–2018
203°F Thermostat for Ram 5.7 Hemi 2003–2018 is a thermostat listing. 2003–2018 listing; verify year and housing. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
Key Features:
203°F Thermostat for Ram 5.7 Hemi 2003–2018 is a thermostat listing. 2003–2018 listing; verify year and housing. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
- 203°F Thermostat for Ram 5.7 Hemi 2003–2018 is a thermostat listing. 2003–2018 listing; verify year and housing. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
- 203°F Thermostat for Ram 5.7 Hemi 2003–2018 is a thermostat listing. 2003–2018 listing; verify year and housing. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
- 203°F Thermostat for Ram 5.7 Hemi 2003–2018 is a thermostat listing. 2003–2018 listing; verify year and housing. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
- 203°F Thermostat for Ram 5.7 Hemi 2003–2018 is a thermostat listing. 2003–2018 listing; verify year and housing. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
Listing and Fitment Notes
203°F Thermostat for Ram 5.7 Hemi 2003–2018 is a thermostat listing. 2003–2018 listing; verify year and housing. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
Comparison to Similar Products:
203°F Thermostat for Ram 5.7 Hemi 2003–2018 is a thermostat listing. 2003–2018 listing; verify year and housing. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
203°F Thermostat for Ram 5.7 Hemi 2003–2018 is a thermostat listing. 2003–2018 listing; verify year and housing. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
Table of Features:
| Feature | Description | 2003–2018 listing; verify year and housing |
| Precision Engineering and Quality Materials | Made with precision engineering and quality materials for durability and reliability. | 2003–2018 listing; verify year and housing |
| OE Equivalent Design | The thermostat is designed to meet or exceed OE specifications for proper fit and function. | 2003–2018 listing; verify year and housing |
| High-Temperature Thermoplastic Design | Resists fatigue and warping for reliable performance over time. | 2003–2018 listing; verify year and housing |
| Patented V-Notch Design | Provides accurate control of the thermostat valve for consistent engine temperature and improved fuel efficiency. | 2003–2018 listing; verify year and housing |
203°F Thermostat for Ram 5.7 Hemi 2003–2018 is a thermostat listing. 2003–2018 listing; verify year and housing. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
4. 4. Gates Thermostat for Ram 1500 5.7 Hemi
Gates Thermostat for Ram 1500 5.7 Hemi is a thermostat listing. 2011–2020 listing; check exact Gates part and VIN. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
Key Features:
Gates Thermostat for Ram 1500 5.7 Hemi is a thermostat listing. 2011–2020 listing; check exact Gates part and VIN. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
- Gates Thermostat for Ram 1500 5.7 Hemi is a thermostat listing. 2011–2020 listing; check exact Gates part and VIN. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
- Gates Thermostat for Ram 1500 5.7 Hemi is a thermostat listing. 2011–2020 listing; check exact Gates part and VIN. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
- Gates Thermostat for Ram 1500 5.7 Hemi is a thermostat listing. 2011–2020 listing; check exact Gates part and VIN. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
- Gates Thermostat for Ram 1500 5.7 Hemi is a thermostat listing. 2011–2020 listing; check exact Gates part and VIN. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
Listing and Fitment Notes
Gates Thermostat for Ram 1500 5.7 Hemi is a thermostat listing. 2011–2020 listing; check exact Gates part and VIN. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
Comparison to Similar Products:
Gates Thermostat for Ram 1500 5.7 Hemi is a thermostat listing. 2011–2020 listing; check exact Gates part and VIN. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
Table of Features:
| Feature | Description | 2011–2020 listing; check exact Gates part and VIN |
| OE Recommended Replacement Part | This thermostat is recommended by GM for use in their vehicles. | 2011–2020 listing; check exact Gates part and VIN |
| Manufactured to Meet OE Specifications | The thermostat is made to meet GM Original Equipment specifications for fit, form, and function. | 2011–2020 listing; check exact Gates part and VIN |
| Controls Coolant Flow | The thermostat controls the flow of coolant through the radiator to enable the engine to reach and maintain its normal operating temperature. | 2011–2020 listing; check exact Gates part and VIN |
| High-Quality Materials | The thermostat is made with high-quality materials for long-lasting durability. | 2011–2020 listing; check exact Gates part and VIN |
Gates Thermostat for Ram 1500 5.7 Hemi is a thermostat listing. 2011–2020 listing; check exact Gates part and VIN. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
5. 5. 203°F Thermostat 52028898AE for Dodge Ram
203°F Thermostat 52028898AE for Dodge Ram is a thermostat listing. 203°F 52028898AE listing; confirm supersession. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
Key Features:
203°F Thermostat 52028898AE for Dodge Ram is a thermostat listing. 203°F 52028898AE listing; confirm supersession. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
- 203°F Thermostat 52028898AE for Dodge Ram is a thermostat listing. 203°F 52028898AE listing; confirm supersession. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
- 203°F Thermostat 52028898AE for Dodge Ram is a thermostat listing. 203°F 52028898AE listing; confirm supersession. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
- 203°F Thermostat 52028898AE for Dodge Ram is a thermostat listing. 203°F 52028898AE listing; confirm supersession. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
- 203°F Thermostat 52028898AE for Dodge Ram is a thermostat listing. 203°F 52028898AE listing; confirm supersession. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
Listing and Fitment Notes
203°F Thermostat 52028898AE for Dodge Ram is a thermostat listing. 203°F 52028898AE listing; confirm supersession. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
Comparison to Similar Products:
203°F Thermostat 52028898AE for Dodge Ram is a thermostat listing. 203°F 52028898AE listing; confirm supersession. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
Table of Features:
| Feature | Description | 203°F 52028898AE listing; confirm supersession |
| Designed for Hemi Engines | This thermostat is designed specifically for 2006-2012 Hemi engines. | 203°F 52028898AE listing; confirm supersession |
| Improved Cooling Efficiency | The thermostat offers improved cooling efficiency and engine performance. | 203°F 52028898AE listing; confirm supersession |
| Lower Temperature Opening | The thermostat opens at a lower temperature than OEM thermostats, allowing coolant to flow to the engine sooner. | 203°F 52028898AE listing; confirm supersession |
| High-Quality Materials | The thermostat is made with high-quality materials for long-lasting durability. | 203°F 52028898AE listing; confirm supersession |
203°F Thermostat 52028898AE for Dodge Ram is a thermostat listing. 203°F 52028898AE listing; confirm supersession. The factory-specified temperature and exact part supersession take priority over a lower-temperature marketing claim.
How to Choose the Right Thermostat for Your 5.7 Hemi Engine
When it comes to keeping your 5.7 Hemi engine running at its best, choosing the right thermostat is essential. The thermostat is responsible for regulating the engine’s temperature and ensuring that it stays within a safe and optimal range.
But with so many options on the market, it can be challenging to know which thermostat is the best fit for your 5.7 Hemi engine. Now, we’ll walk you through some essential factors to consider when choosing the right thermostat for your engine.
Engine Compatibility
The first factor to consider when choosing a thermostat for your 5.7 Hemi engine is compatibility. Not all thermostats are designed to work with all engine types, so it’s essential to choose a thermostat that is specifically designed for your engine.
You can typically find this information in the product description or specifications for the thermostat. Be sure to check the year, make, and model of your engine to ensure that the thermostat you choose is compatible.
Temperature Range
The temperature range is another critical factor to consider when choosing a thermostat for your 5.7 Hemi engine. The thermostat should be designed to open at the correct temperature range for your engine to ensure that it operates at its optimal temperature.
You can typically find the correct temperature range in your engine’s owner’s manual or by consulting with a mechanic.
Construction Materials
The construction materials used in the thermostat are also important to consider. Look for thermostats made with high-quality materials that are durable and long-lasting. Some popular materials used in thermostats include stainless steel, brass, and copper. These materials can withstand high temperatures and provide reliable performance over time.
Performance Features
Different thermostats come with various performance features that can improve the overall performance of your 5.7 Hemi engine. Some common features to look for include a high-temperature rating, faster warm-up time, and improved cooling efficiency. Consider your specific needs and driving conditions when choosing a thermostat with the right performance features for you.
Brand Reputation
Lastly, consider the brand reputation when choosing a thermostat for your 5.7 Hemi engine. Look for brands with a reputation for producing high-quality and reliable thermostats. You can read reviews and ratings online to see what other customers have to say about the brand and their products.
Choosing the right thermostat for your 5.7 Hemi engine is essential to ensure that it operates at its optimal temperature and stays within a safe range. Consider compatibility, temperature range, construction materials, performance features, and brand reputation when choosing a thermostat.
With these factors in mind, you can find the right thermostat for your engine and enjoy reliable performance over time.
Troubleshooting Common Issues with Your 5.7 Hemi Engine’s Thermostat
Your 5.7 Hemi engine’s thermostat is a critical component that regulates the engine’s temperature and ensures that it stays within a safe and optimal range. However, like any part of your engine, the thermostat can experience issues over time.
Now, we’ll go over some common problems that you may encounter with your 5.7 Hemi engine’s thermostat and how to troubleshoot them.
Thermostat Failure
One of the most common issues with a 5.7 Hemi engine’s thermostat is a failure. Over time, the thermostat can become stuck in the open or closed position, which can cause the engine to overheat or not warm up properly.
If your engine is running hotter than usual or not warming up quickly enough, your thermostat has likely failed. You can check the thermostat by removing it from the engine and testing it in boiling water. If it doesn’t open or close as it should, it’s time to replace the thermostat.
Coolant Leaks
Another issue that can occur with a 5.7 Hemi engine’s thermostat is coolant leaks. If the thermostat housing or gasket is damaged or worn, coolant can leak out and cause the engine to overheat.
Check for any signs of coolant leaks around the thermostat housing or radiator. If you notice any leaks, it’s important to replace the damaged components before they cause further damage to the engine.
Improper Installation
Improper installation is another common issue with thermostats. If the thermostat is not installed correctly or if the housing is not properly aligned, it can cause the thermostat to malfunction or fail prematurely.
Be sure to follow the manufacturer’s instructions carefully when installing a new thermostat and check for proper alignment and fit.
Clogged Radiator or Hoses
A clogged radiator or hoses can also cause issues with a 5.7 Hemi engine’s thermostat. If the radiator or hoses are clogged, coolant may not be able to flow freely through the engine, causing it to overheat. Check for any signs of clogs or debris in the radiator or hoses and clean them as necessary.
Your 5.7 Hemi engine’s thermostat plays a crucial role in regulating the engine’s temperature and ensuring that it operates at its best. However, like any part of your engine, it can experience issues over time.
If you encounter any problems with your 5.7 Hemi engine’s thermostat, be sure to troubleshoot them promptly to avoid further damage to the engine. By following these tips and performing regular maintenance on your engine, you can ensure that it stays in top condition for years to come.
See Also:
- 2013 Ram 1500 No Heat On Drivers Side
Fitment reference: Official vehicle or manufacturer guidance. Confirm the current part number and selected Amazon variant before ordering.
