5 Best Thermostat For 5.3 Vortec to Buy in 2022

With the best thermostat for 5.3 Vortec, you’ll be able to adjust the temperature in your home with ease. According to Energy Star, a smart thermostat can save you $40-$90 a year in energy costs, and some thermostat manufacturers promise savings of up to $150 or more, depending on the model.

To maintain your car’s radiator in tip-top shape, we’ll look at some of the best thermostats on the market.

What is a Thermostat?

Controlling the flow of hot water via the radiator cap is the thermostat’s job. Coolant flow is regulated by a thermostat incorporated into the engine block and affixed to the radiator.

Also, consistent performance and longevity are guaranteed by thermostats, which meet or exceed the original equipment manufacturer’s specifications.

Temperature control is the significant role of a thermostat in automobile engines. The thermostat’s job is to keep the engine’s antifreeze and coolant combination from freezing. When it reaches a specific temperature, it opens.

The thermostat will keep the engine temperature sensor near the thermostat’s specified temperature by allowing coolant to flow through the radiator for active fuel management.

5 Best Thermostat For 5.3 Vortec

We’ve done extensive research on thermostats before deciding which one is ideal for you. We’ve spoken to some of the world’s most famous automotive engineers. After that, we surveyed hundreds of automobile owners to determine what they thought was the most excellent thermostat.

The best thermostats for 5.3 Vortec are also based on genuine user reviews from Amazon, eBay, and Walmart. So, follow the list below:

1. Superstar Premium Thermostat

To avoid flooding the engine with coolant, the SuperStat thermostat includes a non-linear, v-notch design that precisely measures the amount of coolant needed to maintain the optimum operating temperature instead of a traditional thermostat’s constant opening and closing.

Brand Stant
Country of Origin USA
Item Weight 2.61 ounces (73.99 grams)
Manufacturer 180 SUPERSTAT
Model Superstat ® Premium Thermostat
Product Dimensions 3.8 x 2.8 x 1.6 inches (9.7 x 7.1 x 4.1 cm)

To ensure long-term reliability, the redesigned thermostats include larger mounting flanges.

My buddy Stella has been using this thermostat for the past 18 months without any problems, plus it has a 25% wider piston diameter than ordinary thermostats.

The stainless-steel flange is polished to a bright shine to reduce stress and enhance corrosion resistance for coolant temp.

Maximum cooling capacity can be achieved by using a high venturi when operating at high temperatures and loads.

Stant’s SuperStat thermostat has everything you need in a thermostat, from a thicker flange to a more substantial opening spring.


  • Springs that are 50% more durable than conventional springs
  • Aids in the re-opening of the thermostat
  • In extreme weather conditions, it prevents running cold.
  • A lifetime guarantee also covers the thermostats.


  • The thermostat does not have a rubber gasket around it.
  • A lip for the housing is not present.

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2. ACDelco GM Original Equipment 131-151 Engine Coolant Thermostat

Your vehicle’s ACDelco GM Original Equipment Engine Coolant Thermostats control the flow of coolant through your radiator hose clamps to ensure that your vehicle’s engine is operating at its optimal temperature, and they are GM-recommended replacement parts.

Brand ‎ACDelco
Country of Origin ‎Mexico
Item Weight ‎2.72 ounces
Manufacturer ‎ACDelco
Product Dimensions ‎3 x 3 x 3 inches

This stock thermostat will assist in maintaining the engine’s average operating temperature by regulating coolant flow through the radiator.

GM-approved replacement part for the original factory component of your GM vehicle and maintain engine coolant temperature.

GM OE’s quality, reliability, and durability may be found in this product.

Fit, form, and function are all considered in the manufacturing process.

In addition, these original equipment thermostats are designed to match your GM car, ensuring the same level of performance and service life you’ve come to expect.


  • It is intended to be 90 degrees Fahrenheit (32 degrees Celsius) at the factory thermostat.
  • keep on for a long time and one of the best thermostat for 5.3 Vortec
  • It fit perfectly and was made of durable materials.
  • A few additional dollars are worth it to avoid having to do it again.


  • According to the scanner, it only rotates 180 degrees air temp
  • Boiling water may cause the thermostat to fail to open.

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3. Gates 34198 OE Type Engine Coolant Thermostat

Invest in this Gates product if you want to keep your vehicle on the road for a long time to come. This product has been meticulously designed and built with the best materials is sure to last a long time. Get the best OEM components for your vehicle to save you time, money, and effort.

Brand ‎Gates
Country of Origin ‎China
Item Weight ‎1.76 ounces
Manufacturer ‎Gates
Model ‎Gates
Product Dimensions ‎2.8 x 2.8 x 2.8 inches

Designed for consumers who require a replacement product identical to the original thermostat for operating temp, this lower temp thermostat is superb.

These products keep your engine cool and avoid overheating using only the best materials.

Also, OE Type – Factory calibration ensures that the door will open and close with the same precision, regardless of changes in pressure.

Aside from characteristics like jiggle pins and check valves for air venting, seal and gasket-like properties make these temperature sensors comparable to the original equipment parts.


  • The entire structure is made of sturdy metal for the cooler thermostat.
  • Any LS engine may use this part with no issues.
  • A positive piston heat motor provides accurate temperature control.
  • It is Gates’ belief in the power of possibility that drives him.


  • When you touch the radiator, it’s frigid.
  • For the sake of getting one that stays open at all times, it may not open.

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4. The Liyyoo 55565336 Thermostat for Engine Coolant

Liyyoo has focused on delivering you the latest and most extraordinary things at incredibly affordable costs and providing service that goes above and beyond expected expectations.

This carburetor appears to be an exact replacement for the original, with the gasoline port on the right side, the same materials, and the same level of quality. Easy to install and start my power washer with one pull of the trigger.

Item Weight ‎4 ounces
Manufacturer ‎LIYYOO
Product Dimensions ‎3 x 2 x 2 inches

Liyyoo thermostat is a wholly automatic temperature regulating device for engine heat.

Getting the engine to optimum temperature rapidly and then maintaining that temperature is the primary goal of this device.

The use of high-quality materials boosts durability and resilience.

The product is entirely new and has been thoroughly tested before shipping t stat.

Steel housing provides a direct replacement, simple installation, and excellent sealing.


  • I don’t feel like this colder thermostat is overheated at all!
  • Quality materials were employed.
  • Increase resilience and durability


  • Rubber gaskets were not included
  • You’ll need to replace the gasket.

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5. MotoRad 7456-187 187 °F Fail-Safe Thermostat

Compared to any other thermostat, Fail-Safe Thermostats have unique technology that provides improved safety. Fail-Safe locks in the open position if an overheating problem occurs due to a cooling system component failing. This prevents costly engine damage by allowing the coolant to flow freely.

Brand ‎MotoRad
Country of Origin ‎Israel
Item Weight ‎2.88 ounces
Manufacturer ‎Motorad
Model ‎7456-187
Product Dimensions ‎2.44 x 3.13 x 2.75 inches

Motorad’s revolutionary Fail-Safe Thermostat allows coolant to circulate freely throughout the engine by automatically locking in the open position for overheating.

This can help you avoid spending more money on your engine in the future. Motorad will make the thermostat in the AC Delco box. However, it will not have a failsafe.

For those looking for a fail-safe thermostat, the Motorad Fail-Safe Thermostat is the best option out there.

Failsafe discussion starter is likewise concerned about protecting the environment, preventing environmental dangers, and ensuring the health and safety of our personnel.


  • Building with high-quality stainless steel and copper
  • OEM specifications are met or exceeded.
  • The ability to respond consistently and precisely to cooling system requests
  • Calibrated and tested to the letter


  • Incompatible with 99 Silverado 2500 was the part delivered.

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A Buyer’s Guide The Best Thermostat For 5.3 Vortec

Follow the guidelines before buying a thermostat for your car.

Make Sure Your Wiring Is Everything In Order

Your old thermostat should also be opened so you can see what kind of wiring it has. Two low-voltage lines (standard in older heating systems) can control a thermostat, but newer thermostats may require a standard wire or C-wire.

The C-wire provides continuous power for features such as screens and WiFi connectivity. Consult an HVAC technician to find out if your home has a C-wire.

Consider The Look And Feel Of  Your Home

Because it will be on your wall for the next decade, you’ll probably want to replace it with something that looks decent. There is a wide range of thermostats on the market today, notably those that are “smart.” Google Nest thermostats come in various shapes and sizes, whereas Ecobee thermostats come in a variety of shapes and sizes.

Decide What You Want To Do

Using a non-connected thermostat if all you need is simple programming and less expensive is a good option. For those who want to manage their thermostat with their voice or an app or have it learn their patterns and change the temperature accordingly, a smart thermostat is a way to go.

Innovative features (such as geofencing), price, and personal preferences (such as color, size, or style) can help you narrow down your options.

Take A Look At Your Heating And Air-conditioning Systems

It’s best to verify the product box for any exceptions to this rule before using our models. This is especially true for smart thermostats, as not all models are compatible with all heating and air-conditioning systems.

A two-stage heat pump system isn’t supported by the E model of the Nest Thermostat, although the Learning Thermostat does. It’s also possible that if you have separate heating and cooling systems, you’ll need a separate thermostat to control each.

Different Types Of Thermostats

Thermostats can be constructed in various ways and employ a variety of temperature sensors. This is a list of the most common thermostats.

Thermostat With A Bimetallic Type:

For use in steam or hot water radiator systems, these thermostats are fitted with a bimetal strip that may be used to control the temperature.

In general, this is a temperature-controlled valve that regulates flow. Mechanical thermostats control the dampers in roof turbine vents to reduce heater hoses loss in cold weather.

When the coolant temperature drops, the thermostat opens and closes the valve. The radiator and engine cooling circuit are separated by a temperature sensor (thermometer).

Thermostat With Electronic Control:

Heating or cooling plates or metal pieces can be attached to these compact, self-contained circular units with an expanded flange exposed to ambient temperature.

As a general rule, the internal sensor and forum software consists of a bimetal disk with electrical connections in the middle.

To switch modes, a convex to concave disk flip causes the contacts to open and close, depending on the temperature at which they are being used (normally closed or open normally). In addition to being an overheating switch, this gadget can also be used.

How Do You Tell If A Car’s Thermostat Is Broken?

Engine overheating might result from a malfunctioning or blocked thermostat and affect the fuel mileage and fuel efficiency that the forum community dedicated.

Damage to the engine can happen from this engine failure caused by a malfunctioning thermostat in your vehicle includes:

Overheating or under-heating of the machine. As a result of a malfunctioning thermostat, your temperature gauge will be out of whack when it should be. Because of this, it is a good idea to keep an eye on your vehicle’s dashboard temperature indicator.

Temperatures in the engine fluctuate. It might also signify a malfunction and poor engine performance if the temperature fluctuates erratically.

Because the thermostat may be stuck in its closed position and causing coolant to seep around or beneath the thermostat housing, the thermostat may also be leaking coolant for forums recommended communities.

Our vehicle’s engine will last longer, consume less fuel, and emit fewer pollutants if we maintain the cooling system properly, using high-quality antifreeze and not mixing or dumping water into the circuit. As a result, the thermostat’s value cannot be overstated.

5.3 Vortec Engine

In terms of performance, the 5.3L V8 Vortec LMF is one of the most sophisticated small-block V-8 engines on the market. Refinement and power go hand-in-hand in this powerful engine.

Engineers have redesigned the cradle and mounting method for quieter operation. Reduces transmission of vibrations from the chassis to the passenger compartment by incorporating these components.


Assembly site Romulus, Michigan, USA and St. Catharines, Ontario, Canada
Bore x stroke 96.01 x 92mm
Compression ratio 9.6:1
Displacement 5328cc (325 ci)
Engine Orientation Longitudinal
Firing order 1 – 8 – 7 – 2 – 6 – 5 – 4 – 3
Fuel system Sequential fuel injection
Fuel Type Regular unleaded and E85 Flex Fuel
Maximum Speed 6000 RPM
Type 5.3L Gen IV V8 Small Block
Valve configuration Overhead valves
Valve lifters Hydraulic roller
Valves per cylinder 2


Main bearing caps Powder metal
Intake manifold Composite
Exhaust manifold Cast nodular iron
Cylinder head Cast aluminum
Crankshaft Cast nodular iron with an undercut and rolled fillets
Connecting rods Powder metal
Camshaft Hollow steel
Block Cast iron

How To Change A Thermostat?

When it comes to thermostat replacement, it’s a challenging task for even the most experienced DIYer. It necessitates a level of safety that is second to none.

Would you please consult your new thermostat’s instructions and your boiler’s manual in addition to this tutorial?

Ensure your new thermostat is compatible with your current wiring before detaching the old one or buying a new one. To install the new one, there may be a need to add or modify existing wiring.

Your old thermostat undoubtedly had a 240v power supply and a switched live, but it may be 24 volts! You need to know the voltage before you replace it. If you connect the wrong wires, you could have a faulty boiler.

Tools You Will Need:

  • Approved voltage tester
  • Drill
  • Mini spirit level
  • Pencil
  • Safety first
  • rad cap
  • Screwdriver

When working with electricity, it’s critical to be aware of your surroundings and your surroundings. A 240-volt circuit that serves your boiler and thermostat may be at risk.

Therefore you must isolate it correctly and demonstrate its death using appropriate safe isolation equipment, techniques, and precautions.

An experienced electrician is essential if you’re not confident in your abilities. A mains voltage electricity accident can be fatal for coolant leak also.

Procedures For Safe Electrical Isolation:

  • A fused connection unit (FCU) or socket near the boiler should also be used to isolate the thermostat, as the heating circuitry should all be isolated from a single point of contact.
  • It’s a good idea to flip on the circuit breaker on the sockets in your fuse box or consumer unit while the boiler is running so that all of your home’s sockets are cut off.
  • Your boiler has been turned off, and if you test the thermostat with safe isolation equipment and methods, you can be sure it’s on the sockets circuit because it’s now dead.
  • Switching and unplugging at the outlet adjacent to the boiler is not a substitute for doing so.
  • Before you begin any work on the thermostat, ensure that the wire has been appropriately isolated using your safe isolation equipment and procedures.

Frequently Asked Questions

What is the life expectancy of a 5.3 Vortec?

53l Vortec engines often last between 200 and 300 thousand miles, making them exceptionally durable. The LM7 engine in my 2002 Suburban is still going strong at 220k miles for 180 thermostat, and I’ve had no engine problems while owning it.

How much horsepower does a cold air intake add to a 5.3 Vortec?

On average, a cold air intake will increase your Silverado’s horsepower by 11 hp. Adding a throttle body spacer or a new mass airflow sensor can improve airflow management. Ideally, a tuner can improve the performance of your cold air intake.

How much is a thermostat for a Chevy Silverado 1500?

The estimated cost of replacing the thermostat in a Chevrolet Silverado 1500. Parts, which cost $77, are anticipated to cost between $97 and $122 in labor charges.

Based on the number and age of Chevrolet Silverado 1500s on the road, this price range has been established.

Are 5.3 Vortec suitable motors?

One of the most reliable engines is the 5.3L V8 Vortec for 160 deg. Many car owners say that the engine has run smoothly for up to 220,000 kilometers. Furthermore, the engine runs blocks are pretty sturdy on a water pump of fora platform of 160 degree.

What Temperature Thermostat Should I Have?

When you’re at home in the winter, the ideal setting for the thermostat is 68 degrees Fahrenheit for fuel economy.

At 68 degrees, Energy.gov recommends keeping your room temperature at this level while you’re at home, but reduce it when you’re sleeping or away from home. You can save up to 15% on your heating bill by lowering your thermostat 10-15 degrees for eight hours.


A thermostat’s primary function is to control the engine’s temperature. So, it’s crucial to select a perfect thermostat for your car to keep the radiator well functioning.

We hope that our recommended best thermostat for 5.3 Vortec will help you find the suitable one. Always be careful that choosing the wrong thermostat can be a reason for a major fault or accident.

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