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2019 Thermostats, Housings & Fillers

Part Groups

Results 1 - 23 of 23

Mishimoto Thermostats

Mishimoto thermostats are effective in noticeably lowering engine coolant temperatures. These thermostats are built with high-quality wax and are shipped with new rubber gaskets (where applicable) for a good, leak-free seal. They are then digitally calibrated for precise operation. Mishimoto thermostats open up at a slightly lower temperature than OEM or standard thermostats once your engine is fully warmed up. This allows the coolant to flow through the engine sooner, thus reducing and maintaining cooler engine temperatures. Whether you have a daily driver or a modified and upgraded turbo, Mishimoto thermostats will maintain optimal temperatures to efficiently cool your application.

4.44 out of 5 stars ( 73 )

$64.95

$101.95

ACDelco GM Genuine Parts Water Necks and Thermostat Housings

ACDelco water necks and thermostat housings fit your vehicle just like the originals. When you need to restore the efficiency of your water inlet/thermostat housing, these quality replacements fix your issues with leak-free performance and peace of mind. The units are available in a variety of configurations for applications from the 1960s and up. You can be assured that not only the fit, but also the function will be just as expected. Replace your water necks with one of the same from ACDelco.

4.6 out of 5 stars ( 30 )

$53.99

$77.99

CVR Thermostat Housings

Position your hose where you want it with CVR thermostat housings. These beautifully machined housings swivel 360 degrees for ease of installation. Crafted from T6-6061 billet aluminum, CVR thermostat housings are bright anodized in several finishes for a professional look under your hood. The flange is sealed at the manifold with an O-ring, eliminating the gasket, plus stainless steel hardware is included. You can count on high performance looks and operation with CVR thermostat housings.

4.16 out of 5 stars ( 67 )

$62.99

$101.99

ACDelco Engine Coolant Thermostat Housings

ACDelco engine coolant thermostat housings are GM-recommended replacements for your vehicle's worn or damaged original equipment. The inline housing holds the thermostat and serves as a connection point for the radiator hose and inlet or outlet, and may also include ports for sensors or switches. These high-quality replacements are manufactured to fit your specific GM vehicle, providing the same performance, durability, and service life that you expect from General Motors.

4.71 out of 5 stars ( 7 )

$72.99

On Sale

Mr. Gasket Water Necks

Mr. Gasket offers replacement water necks in a variety of styles, materials, finishes, sizes, and angles. Water necks help to hold the vehicle's thermostat in place as it opens and closes—to regulate the flow of coolant through your engine. The opening in the water neck created by the thermostat allows coolant to flow from the radiator back to the engine. Order the model recommended for your vehicle.

3.69 out of 5 stars ( 113 )

$63.05

Granatelli Motor Sports High-Flow Thermostats

Granatelli Motor Sports high-flow thermostats are designed to work with all 5.7L, 6.1L, 6.2L, 6.4L, and Hemi engines—including Hellcat. These high-flow thermostats are a direct OEM replacement part that ensures maximum cooling efficiency and can help protect the engine from damage associated with excessive heat. Granatelli high-flow thermostats have a copper, brass, and stainless steel construction to provide long service and high reliability.

1.8 out of 5 stars ( 10 )

$51.87

$55.86

MotoRad Spec-R Integrated Thermostat Housings

MotoRad Spec-R️ integrated housing thermostats are perfect for high performance and racing applications. Designed and manufactured by a leading OE thermostat supplier to withstand high-pressure and high-horsepower demands, they are made with quality materials and carry the Spec-R logo. Keep your vehicle running at maximum cooling efficiency, whether on the track or on the street; select the Spec-R thermostat with integrated housing best suited to your vehicle's needs. Features: * Black oxide coating for high temperature tolerance, corrosion resistance and life-long durability * Lower than OE opening temperature for cooler engine operation, resulting in more power * Specially formulated Spec R heat element mixture for faster response time * Proprietary gasket composition to withstand high-pressure/high performance cooling systems

Not Yet Reviewed

$122.99

Billet Specialties Thermostat Housings

Billet Specialties thermostat housings not only look good, but they also get rid of leaky paper gaskets thanks to their O-ring seal design. You can choose the conventional vertical housing or the high-tech 360 degree swivel housing. They're available straight-up or with a 0, 15, or 45 degree angle and come complete with stainless hardware.

4.56 out of 5 stars ( 239 )

$68.95

$120.95

Holley Thermostat Housing Assemblies

Holley thermostat housing assemblies are replacement components for mid-mount accessory drive systems. These thermostat and housing kits are genuine Holley parts providing the correct fit to restore optimum operation and engine cooling.

3.5 out of 5 stars ( 2 )

$81.69

$88.84

Dorman Thermostat Housings

Replace your stock thermostat housing with new parts from Dorman. These quality replacement components offer solution upgrades for your coolant system, and they are available for several applications. Don't wait for your engine to overheat or for the check engine light to illuminate--upgrade to reliable, OE-fitting thermostat housings from Dorman.

4.23 out of 5 stars ( 175 )

$50.99

$102.99

MotoRad Integrated Housing Thermostats

MotoRad offers integrated housing thermostats for a variety of car and truck applications from the 1990s and up. They feature high-grade stainless steel and copper construction, and are 100 percent tested and calibrated for consistent, precise response to your cooling system needs. The thermostats provide an OE design for worry-free direct-fit replacement; they meet or exceed factory standards. Order the model recommended for your vehicle.

Not Yet Reviewed

$82.99

$102.99

MotoRad Spec-R Racing Thermostats

In racing, precision is everything--from the driver's skill to each component under the hood. A racing engine thermostat isn't just about maintaining a lower temperature; it must endure the relentless demands of high-flow, high-pressure environments that standard parts simply can't handle. MotoRad Spec-R racing thermostats are engineered to offer rapid response and precise temperature control under extreme conditions, allowing optimal engine performance without compromise. They are manufactured to provide durability, withstand intense vibrations, and maintain reliability at every stage, ensuring that racers get consistent performance, lap after lap. Run your vehicle with maximum cooling efficiency; select the Spec-R racing thermostat best suited to your vehicle's needs. Features: * Black oxide coating for high temperature tolerance, corrosion resistance and life-long durability * Lower than OE opening temperature for cooler engine operation, resulting in more power * Specially formulated Spec R heat element mixture for faster response time * Proprietary gasket composition to withstand high-pressure/high performance cooling systems Note: Gaskets/seals may or may not be included.

Not Yet Reviewed

$64.99

March Performance Thermostat Housings

March Performance thermostat housings are available in several styles and finishes covering a wide range of vehicle engine applications. Each housing is CNC-machined from 6061 T-6 aluminum and available polished, black anodized, or clearcoated. Most styles include mounting hardware and an O-ring for a clean seal. The 1.5 in. radiator hose neck swivels inside of base for perfect routing. March Performance thermostat housings are compatible with OEM and numerous aftermarket thermostats. Choose the one designed for your application.

3.22 out of 5 stars ( 9 )

$54.99

$66.99

Four Seasons Outlet and Thermostat Housing Kits

Four Seasons outlet and thermostat housing kits are designed and manufactured from durable materials. These direct-fit engine coolant components meet or exceed OEM standards and include quality gaskets or O-rings. They are 100 percent leak tested to ensure proper sealing and performance.

3.2 out of 5 stars ( 5 )

$52.99

$104.99

Hybrid Racing Low Temp Thermostats

Hybrid Racing offers low temp thermostats for a variety of applications, including many Honda© and Acura© models from 1990 and up. The advantages of using a low-temperature thermostat in high performance or race environments are evident. Opening the thermostat's valve at a lower temperature allows coolant to flow more freely during low-load sections of the racetrack. This enables the radiator to effectively regulate the engine's temperature within the optimal range during high-load sections. If a cooling system is pushed to its limits at the racetrack and overheating becomes an issue, a low-temperature thermostat can often resolve this problem. It achieves this by allowing the radiator to perform more cooling at lower engine loads, thereby preventing or delaying overheating during high-engine loads. Overall, low-temperature thermostats provide improved engine cooling, prevent temperature hunting, offer durability, and allow for customizable cooling systems. These advantages make them a valuable component, especially in high performance applications where maintaining optimal temperatures is crucial for engine performance and longevity. Order the model recommended for your vehicle.

Not Yet Reviewed

$85.49

Philadelphia Racing Products Thermostat Housings

Philadelphia Racing Products billet swivel thermostat housings make the connection from your upper radiator hose to your engine. Each water neck is fully CNC-machined from 6061-T6 billet aluminum and able to swivel 360 degrees. The housings come complete with stainless steel mounting hardware and O-ring for positive sealing. All units will accept any standard thermostat and one of Philadelphia Racing's O-ring style water pump fittings. Order the size and finish you prefer for your application.

3.2 out of 5 stars ( 5 )

$79.99

URO Parts Thermostat Housings and Coolant Flanges

URO Parts thermostat housings and coolant flanges are an important part of their line of cooling system parts that also includes thermostat housing caps, hose connectors, and seats. They offer aluminum thermostat housings that are an upgrade from weak plastic OE components that frequently warp, crack, and leak due to high underhood temperatures. URO Parts thermostat housings and coolant flanges meet or exceed OEM standards, including those of prestigious European auto makers.

1.0 out of 5 stars ( 1 )

$62.99

$78.99

URO Parts Thermostat Assemblies

URO Parts offers engine coolant thermostats/water inlet assemblies for a wide range of vehicles and engine applications, including Mercedes-Benz cars and trucks from 2014 and up. They feature high-flow OE-style design for optimal engine cooling performance. These replacements are manufactured to factory housing dimensions for easy bolt-on installation and reliable hose connections. They're made from high-quality alloy or composite material that's temperature-stable—to resist warping or cracking which can lead to coolant leakage. Guaranteed to fit, the assemblies carry a 24-month Unlimited Mileage Warranty. (Temperature sensor included, where applicable.)

Not Yet Reviewed

$77.99

Beck/Arnley Coolant Thermostats

You always get high-quality replacement parts from Beck/Arnley. Their self-cleaning engine coolant thermostats are constructed from high-quality stainless steel and copper to prevent corrosion and have long-stroke capabilities to provide maximum cooling. They allow your engine to reach operating temperature quickly to reduce oil dilution, fuel consumption, and exhaust emissions. Improve the overall efficiency of your heating system with Beck/Arnley coolant thermostats.

4.09 out of 5 stars ( 11 )

$58.99

$74.99

Mopar Replacement Thermostats

Mopar Replacement thermostats offer high-quality, along with an original equipment fit and function to keep your favorite Chrysler, Dodge, Plymouth, or Jeep rolling down any road you choose to travel. For a direct fit and reliable, safe operation, service your vehicle with genuine Mopar Replacement thermostats to maintain the "cooling" performance you've come to expect. Order the model designed for your specific application.

4.33 out of 5 stars ( 9 )

$52.99

Four Seasons Water Necks

Four Seasons water necks are offered in a wide selection for most popular import and domestic vehicles. These water necks include the necessary gaskets or O-rings where applicable.

3.85 out of 5 stars ( 249 )

$50.99

$58.99

Dorman Thermostats

Replace your stock thermostat with new parts from Dorman. These quality components offer solution upgrades for your coolant outlets. Dorman offers thermostats for several applications. Don't wait for your engine to overheat or for the check engine light to illuminate--upgrade to reliable, OE-fitting thermostats from Dorman.

3.07 out of 5 stars ( 28 )

$93.95

Fleece Performance Thermostat Housings

Fleece Performance thermostat housings have an auxiliary port with plug to allow you to customize your coolant routings. Two elbow options are available as direct replacements for specific model years of RAM trucks with 5.9L or 6.7L Cummins, and in specific Fleece coolant bypass kits.

Not Yet Reviewed

$89.99

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