Ever wonder what keeps your car’s engine from overheating on a hot summer day or freezing up in the winter? It’s a small, often overlooked part that plays a huge role: the automotive thermostat. This unsung hero is like a gatekeeper for your engine’s temperature, making sure it runs at its best.
But choosing the right thermostat can feel like navigating a maze. There are so many different types, and picking the wrong one can lead to engine problems, costly repairs, and even leave you stranded. You want your car to be reliable, and the thermostat is key to that reliability.
In this post, we’ll break down exactly what an automotive thermostat does and why it’s so important. We’ll explore the different kinds you might find and what makes them unique. By the time you finish reading, you’ll feel confident understanding how this tiny part keeps your engine happy and healthy, and how to choose the best one for your needs.
Top Automotive Thermostat Recommendations
- This part fits many vehicle years, makes and models. Please verify fitment with Amazon ConfirmedFit
- Fits Select JEEP: Wrangler 87-06, Grand Cherokee 93-04, Cherokee 74-01, CJ7 76-86, Comanche 86-92, DJ5 72-83, Grand Wagoneer 84-93, CJ5 72-83, Scrambler 81-85, J10 74-88, Wagoneer 66-90, J20 74-88, Commando 72-73, CJ6 72-75, TJ 97-06, J-100 65-73, Gladiator 65-67, J-200 65, J-2500 65-73, Utility Wagon 60, J-4800 70-73, J-4700 70-73, J-4600 70-73, J-4500 70-73, J-3800 65-71, J-3700 65-70, J-3600 65-70, J-3500 65-70, J-2800 65-68, J-2700 65-70, J-2600 65-73 | PONTIAC: Firebird 67-92, LeMans 63-81, Grand Prix 66-91, GTO 67-73, Bonneville 57-86, Grand Am 73-93, Catalina 57-81, Parisienne 66-86, Grandville 71-75, Ventura 71-77, 6000 82-91, Safari 87-89, Grand LeMans 75-83, Executive 67-70
- Fits Select FORD: F-150 75-97, Ranger 91-08, Mustang 64-04, Taurus 86-07, F-250 65-97, F-350 64-97, Windstar 95-03, Bronco 66-96, Freestar 04-07, Explorer 96-01, E-150 Econoline 75-96, F-250 HD 97, Thunderbird 67-97, F-100 65-83, Aerostar 86-97, LTD Crown 87-91, LTD 65-86, Ranchero 60-79, Torino 68-76, Fairlane 62-70, Galaxie 500 62-74, Gran Torino 72-76, Granada 75-82, Mustang II 75-78, Fairmont 78-83, Maverick 70-77, Galaxie 62-67, Country Squire 62-91, Tempo 84-94, Falcon 62-70, Probe 90-92, Custom 500 64-76, Ranch Wagon 62-74, LTD II 77-79, Elite 75-76, Fiesta 78-80, Country Sedan 62-74, Escort 84-87, F-500 75-76, F-3 48-52, F-200 86-90, F-2 48-52, F-100 Ranger 96-99, Custom 64-72
- Fits Select DODGE: Ram 1500 94-03, 2500 94-02, 3500 94-03, Dakota 87-03, Durango 98-03, D150 77-93, B250 81-94, W150 78-93, B3500 95-98, B350 81-94, Ramcharger 74-01, D100 75-89, W250 81-93, B2500 95-98, D250 81-93, B1500 95-98, B150 81-94, W350 81-93, D350 81-93, W100 75-89, Dart 67-82, Charger 68-76, Diplomat 78-89, W200 75-80, B200 75-80, Coronet 67-76, D200 75-80, Aspen 76-80, Challenger 70-72, D300 75-80, B100 75-80, Mirada 80-83, B300 75-80, W300 75-80, Polara 66-71, Magnum 79,St. Regis 79-81, Monaco 77-78, A108 Van 67-70, A100 Truck 64-70, Verna 04-06, RD200 79-80, P200 Van 73-74, P200 67-72, P300 67-72, P100 68, D450 79-81, D400 79-81, CB300 73-80, D100 Panel 76, D100 Pickup 68-74
- Fits Select CHEVY: C1500 88-97, K1500 88-95, Corvette 55-91, C10 75-86, Camaro 67-92, S10 82-95, K2500 88-95, G20 75-95, K10 75-86, Monte Carlo 70-88, Caprice 66-93, C2500 88-95, El Camino 64-87, G30 75-96, Blazer 69-94, Chevelle 64-73, P30 75-96, K1500 Suburban 92-95, C20 75-87, K20 75-86, R10 87, K3500 88-95, Tahoe 95, C3500 88-95, Nova 69-79, Astro 85-94, K5 Blazer 75-86, K30 77-86, C30 75-86, S10 Blazer 83-94, V10 87, Malibu 64-83, Impala 59-85, C3500HD 91-95, Celebrity 82-90, Vega 71-77, Corvair 62-69, V30 87-88, Monza 75-80, Laguna 73-76, LUV 82, Bel Air 50-81, Citation 80-85, R2500 89, Biscayne 63-72, Beretta 90-93, Citation II 84-85, Kingswood 59-72, Estate 69-70, Townsman 69-72
- [Vehicle Fitment]: Compatible with Buick Encore 2017 L4 1.4L (VIN: B), Encore 2013-2016 L4 1.4L, Encore 2018-2021 L4 1.4L; Compatible with Chevrolet Cruze 2011-2016 L4 1.4L, Cruze Limited 2016 L4 1.4L, Sonic 2012-2020 L4 1.4L, Trax 2013-2021 L4 1.4L --- It comes with Sensor
- [Reference Number]: 55565336, 902-808, 902808, 55579010, 55593034, 28290034, 730221, 730-221
- [Specification]: ① Start to Open Temperature (℃): 105; ② Material: Aluminum and Rubber; ③ Packaging Type: Box; ④ Gasket or Seal Included: Yes; ⑤ Fitment: Direct Replacement
- [Benefits]: Through strict hardness and crushing tests, having precise structures and reliable performances. More effectively, adjust the heat dissipation capacity to ensure the engine works within the appropriate temperature range
- [Buy with Confidence]: A-Premium offers a one-year unlimited-mileage guarantee on our meticulously crafted Engine Coolant Thermostat Housing Assembly. We offer a wide variety of automotive accessory categories, ensuring that you can hit the road with peace of mind
- Compatibility 1: MITZONE upgraded aluminum coolant thermostat housing assembly compatible with 2011-2014 Dodge Avenger 3.6L, 2011-2020 Dodge Grand Caravan 3.6L, 2011-2019 Dodge Journey 3.6L, 2014-2021 Jeep Cherokee 3.2L
- Compatibility 2: MITZONE upgraded aluminum coolant thermostat housing assembly compatible with 2012-2015 Ram C/V 3.6L, 2014-2021 Ram ProMaster 1500 2500 3500 3.6L, 2011-2017 Chrysler 200 3.6L, 2011-2016 Chrysler Town Country 3.6L
- Function: The engine coolant thermostat and housing assembly helps regulate the engine's operating temperature by controlling the flow of coolant.It ensures optimal cooling efficiency and engine performance, protecting your vehicle from overheating
- Includes: Aluminum thermostat housing, thermostat, gasket, Sturdy Screw. Opening temperature: 95 ℃
- Purchase with confidence: If you are not sure about the vehicle fitment or any questions or concerns, please message us via amazon. We will resolve the issue to meet your satisfaction
- Quality-controlled factory calibration assures accuracy of opening and closing, regardless of pressure changes
- OEM fit, function and design for precise engine cooling
- Jiggle pins for air venting, seals and gaskets make these thermostats equivalent to the original equipment parts
- OE Type Thermostat - 187º Bottom By-Pass w/O-Ring
- Ideal replacement - this engine coolant thermostat housing assembly directly replaces the original water outlet on specified vehicle years, makes and models
- Durable construction - this part is specifically designed to withstand extreme temperature changes and resist cracking and leaking
- Century of experience - for over 100 years, Dorman Products has provided quality automotive replacement parts to its customers
- Industry-leading design - professionally engineered by the aftermarket leader in replacement thermostat housing assemblies
- Ensure fit - Input your vehicle into the garage tool and check Confirmed Fit bar at the top of the page. If there is an “i” in a blue circle, additional verification is needed. Please hover over the "i" to verify fitment notes match your vehicle
- Some ACDelco Gold parts may have formerly appeared as ACDelco Professional
- Premium aftermarket replacement part
- Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models
- Ideal replacement - this engine coolant thermostat housing assembly directly replaces the original water outlet on specified vehicle years, makes and models
- Durable construction - this part is specifically designed to withstand extreme temperature changes and resist cracking and leaking
- Cost-effective and reliable - offers original manufacturer quality at lower cost than getting replacement at dealer
- Industry-leading design - professionally engineered by the aftermarket leader in replacement thermostat housing assemblies
- Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the Amazon Garage
- [Vehicle Fitment]: ①Compatible with Chrysler 200 2011-2014, Sebring 2008-2010 4Cyl 2.4L; ②Compatible with Dodge Avenger 2008-2014 4Cyl 2.4L, Caliber 2007-2012 4Cyl 1.8L 2.0L 2.4L, Journey 2009-2020 4Cyl 2.4L; ③Compatible with Jeep Compass 2007-2016 4Cyl 2.0L 2.4L, Patriot 2007-2017 4Cyl 2.0L 2.4L --- Note: The Year 2007 and 2008 fit for Later Design 2009 & Newer Heater Hoses
- [Reference Number]: 902-319, 902319, 4884571AB, 06508355AA, 4884571AB, 4884873AA, 55111016AD, 55111017AC, 68003582AB.
- [Product Specifications]: ①Thermostat Opening Temperature: 203 Deg. F ②Outlet Port Quantity: 5 ③Mounting Hole Quantity: 3 ④Flange Length: 1.25 in ⑤Flange Width: 1 in ⑥Thermostat Included: with 2x Thermostat, one of the Thermostats is preintalled inside the Housing Assembly ⑦Grade Type: Regular ⑧Material: Plastic ⑨Seal Included: with 2x O-ring
- [Package Includes]: 2x Thermostats, The large one is for the pipe that runs behind the engine, the small one goes on the temp sensor. 1x Plastic Housing; 2x O-rings.
- [Buy with Confidence]: A-Premium offers a one-year unlimited-mileage guarantee on our meticulously crafted thermostat housing assembly. We offer a wide variety of automotive accessory categories, ensuring that you can hit the road with peace of mind.
Your Car’s Temperature Guardian: The Ultimate Thermostat Buying Guide
Your car’s engine needs to stay at a specific temperature to run well. Too hot, and parts can get damaged. Too cold, and it won’t work efficiently. That’s where the thermostat comes in. It’s a small but mighty part that controls the flow of coolant to keep your engine happy. Choosing the right thermostat is important for your car’s health and your wallet.
Key Features to Look For
When you’re shopping for a thermostat, keep these important features in mind:
Opening Temperature
This is the temperature at which the thermostat starts to open and let coolant flow. It’s usually printed on the thermostat itself. Make sure you buy the one recommended for your car’s make and model. Using the wrong temperature can cause overheating or poor performance.
Stamping and Markings
Good quality thermostats have clear markings. These include the brand name, the opening temperature, and sometimes a part number. Clear markings make it easy to confirm you have the correct part.
Built-in Safety Features
Some thermostats have extra safety features. For example, some have a “fail-safe” design. This means if the thermostat gets stuck, it will fail in the open position. This helps prevent your engine from overheating.
Included Gasket or Seal
Many thermostats come with a new gasket or seal. This is a rubber or paper ring that creates a tight seal to prevent coolant leaks. It’s best to get a thermostat that includes this, as a damaged or missing gasket can cause problems.
Important Materials
The materials used in a thermostat affect its durability and how well it works.
Brass and Stainless Steel
The main body of most thermostats is made from brass or stainless steel. These metals are strong and resist corrosion from the coolant. High-quality thermostats use thicker, more durable metals.
Wax Pellet
Inside the thermostat is a special wax pellet. When the engine heats up, this wax melts and expands. This expansion pushes a valve open, allowing coolant to flow. The quality of the wax and how it’s sealed inside is important for accurate temperature control.
Factors That Improve or Reduce Quality
Several things can make a thermostat better or worse.
Precision Engineering
A well-made thermostat has precise measurements. The valve needs to open and close smoothly at the correct temperature. Poorly made thermostats can stick or open at the wrong temperature. This can lead to engine problems.
Corrosion Resistance
Coolant can be harsh. A good thermostat is made to resist corrosion. This means it will last longer and won’t break down as easily. Cheaper thermostats might not have good corrosion protection.
Brand Reputation
Trusted brands often produce higher-quality parts. They have a reputation to uphold. They usually test their parts thoroughly. Buying from a well-known brand can give you peace of mind.
User Experience and Use Cases
How a thermostat performs in real-world driving is what matters most.
Smooth Engine Operation
A good thermostat helps your engine run smoothly. It keeps the temperature steady, so you don’t notice big swings. This means better fuel economy and less wear and tear on your engine.
Preventing Overheating
The most important job of a thermostat is to prevent overheating. If your car’s temperature gauge climbs too high, a faulty thermostat is often the culprit. Replacing it with a quality part solves this problem.
Cold Weather Performance
In cold weather, a thermostat helps your engine reach its optimal operating temperature faster. This is important for efficient burning of fuel and for your car’s heater to work well.
Frequently Asked Questions (FAQ)
Q: What is the most important thing to look for when buying a thermostat?
A: The most important thing is to buy the thermostat with the correct opening temperature for your specific car model. This information is usually in your car’s owner’s manual.
Q: Can I use a thermostat with a different opening temperature?
A: It’s not recommended. Using a thermostat with a different opening temperature can cause your engine to run too hot or too cold, leading to damage or poor performance.
Q: How do I know if my thermostat needs replacing?
A: Signs of a bad thermostat include your engine overheating, your car taking too long to warm up, or your heater not blowing hot air.
Q: Should I replace the thermostat every time I change my coolant?
A: It’s a good idea. Thermostats are relatively inexpensive, and replacing it when you flush your coolant can prevent future problems.
Q: What does “fail-safe” mean for a thermostat?
A: A fail-safe thermostat is designed to open completely if it malfunctions. This helps prevent your engine from overheating if the thermostat gets stuck.
Q: Do I need a new gasket when I buy a thermostat?
A: Yes, it’s highly recommended. A new gasket ensures a proper seal and prevents coolant leaks. Many thermostats come with one.
Q: How long does a car thermostat typically last?
A: A good quality thermostat can last for many years, often around 50,000 to 100,000 miles. However, they can fail sooner due to age or other engine issues.
Q: Can a thermostat affect my car’s fuel economy?
A: Yes, a properly working thermostat helps your engine reach its optimal temperature quickly. This leads to better fuel combustion and improved fuel economy.
Q: What is the difference between a standard and a high-performance thermostat?
A: Standard thermostats are designed for normal driving conditions. High-performance thermostats might open at a slightly lower temperature to keep engines running cooler, which is sometimes preferred for modified or high-stress engines.
Q: Where can I find the correct thermostat for my car?
A: You can find the correct thermostat at auto parts stores, online retailers, or by consulting your car’s owner’s manual or a trusted mechanic.