Summit Racing SpeedCard - learn how to get 10% back up to $100

Summit Racing SpeedCard - learn how to get 10% back up to $100

Haul in the Savings - Shop the Truck Savings Event Today!

MERCURY GRAND MARQUIS Cooling & Heating

Part Groups

Results 1 - 24 of 37

Edelbrock High Performance Thermostats

Edelbrock high performance thermostats are designed to ensure consistent cooling in high performance applications. Edelbrock thermostats feature brass and copper valve assemblies with stainless steel bodies for durability. They are bolt-on OE-style replacements and are available to fit many popular domestic and import applications. They are available with160, 180, and 190 degree F ratings.

4.5 out of 5 stars ( 44 )

$22.95

$24.95

On Sale

Mr. Gasket High Performance Thermostats

Mr. Gasket high-performance thermostats are designed to resist large variations in coolant pressures that can occur at high rpms. Under these conditions, coolant temperature and pressure fight for control of the thermostat, keeping it from opening at its designed temperature. These balanced high-performance thermostats have brass-and-copper construction, and open at the right temperature regardless of engine rpm.

3.97 out of 5 stars ( 234 )

$29.11


$21.83

$31.46

Hayden Rapid-Cool Transmission Oil Coolers

Hayden Rapid-Cool transmission oil coolers take the heat, so your vehicle won't! Over 14-million transmissions fail every year, and 9 out of 10 are from overheating. Rapid-Cool's unique plate and fin design combines cooling expertise and space efficiency; multiple sizes are available. Their patented internal turbulation provides better heat transfer. Lower your operating temps with a pioneer in cooling: Hayden!

4.7 out of 5 stars ( 159 )

$43.99

$46.99

Hayden Fan Clutches

Do you need a replacement fan clutch? These fan clutches by Hayden Automotive are manufactured to ensure performance and durability. Hayden offers thermal, non-thermal, and heavy-duty series fan clutches that meet strict factory guidelines. All Hayden Automotive fan clutches should only be used on the specific applications for which they are cataloged. Use of the wrong fan clutch may result in poor cooling, excess noise, reduced mileage, and/or fan clutch failure.

4.51 out of 5 stars ( 443 )

$43.99

$51.99

Hayden Fluid Coolers

Hayden Automotive offers fluid coolers in a variety of sizes and materials. These units help to extend the life of your vehicle by lowering operating temperatures. Coolers are available for many types of fluids, including transmission, hydraulic, and power steering; as well as engine coolant, diesel fluid, and engine and differential oil. Order the universal or vehicle-specific model needed for your application.

4.42 out of 5 stars ( 168 )

$29.99

$51.99

GMB OE Replacement Water Pumps

GMB OE replacement water pumps are precision-built and balanced to meet or exceed original equipment specifications. They're assembled with heavy-duty steel bearings—and are lubricated and sealed for life. Order the model designed for your vehicle application. All GMB water pumps are factory-tested for quality and include the following features: * High-flow design for long-lasting, efficient cooling * Designed for OE fit and performance * Precision-ground shaft and hub accept OE fan clutches perfectly * OE-quality forged housing is specially formed to ensure maximum coolant flow * Pressed-on impeller increases water flow * Unique no-sealant-required gasket makes installation fast and easy * Unitized seal protects bearings for long life and leak-free performance * Factory-sealed, precision-ground, one-piece bearing assembly

4.39 out of 5 stars ( 512 )

$33.99

$48.99

On Sale

Mr. Gasket Chrome Plated O-Ring Water Necks

Mr. Gasket chrome plated water necks feature an O-ring style seal to prevent water leaks. Precision die-cast for a great fit, they're first polished to a high luster, then beautifully chrome plated for lasting beauty. These water necks come complete with an O-ring and mounting bolts.

4.22 out of 5 stars ( 63 )

$22.94

Four Seasons Power Steering Oil Cooler Installation Kits

Power steering oil coolers remove destructive heat generated within the power steering systems of your high performance vehicles. And that's where Four Seasons power steering oil cooler installation kits come into play. These kits are designed to prolong the life of your system's pump, hoses, and seals, and include an oil hose and all necessary hardware for the installation.

4.85 out of 5 stars ( 13 )

$31.99

FlowKooler Robertshaw Series High Performance Thermostats

FlowKooler Robertshaw high performance thermostats are designed to resist large variations in coolant pressures that can occur at high rpm. Under these conditions, coolant temperature and pressure fight for control of the thermostat, keeping it from opening at its designed temperature. These balanced, high performance thermostats feature brass-and-copper construction and will open at the right temperature, regardless of engine rpm.

4.6 out of 5 stars ( 151 )

$28.99

Motorcraft Radiator Caps

Radiator caps from Motorcraft are crafted from heavy-duty zinc plated steel and high-quality plastic, both resistant to rust and corrosion. Stainless steel pressure valve springs maintain the calibrated pressure for a maximum service life. These Motorcraft radiator caps include a rubber pressure valve gasket, and are able to withstand high temperatures and deterioration caused by coolant chemicals. Any accidental cap removal can be prevented with the "positive low-pressure" feature.

5.0 out of 5 stars ( 6 )

$43.99

Four Seasons Ultra-Cool Transmission Oil Coolers

Keep your transmission healthy with Four Seasons Ultra-Cool transmission oil coolers. The aluminum tube and fin oil coolers feed your system cool oil, protecting it from overheating and giving it the strength to climb, tow, and tackle stop-and-go city driving. Four Seasons transmission oil coolers offer your transmission efficient performance and protection. Be good to your transmission--give it a regular dose of cool oil from Four Seasons Ultra-Cool transmission oil coolers.

4.9 out of 5 stars ( 10 )

$37.99

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

$20.99

$23.99

Motorcraft Thermostats

Motorcraft thermostats are constructed for strength and rigidity, with a mounting flange designed to properly fit and seat the thermostat in the housing. The streamlined Venturi nozzle gives you maximum coolant flow, and the stainless steel spring offers precise operating compression.

5.0 out of 5 stars ( 5 )

$20.99

$22.99

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 )

$34.72


$22.57

Four Seasons Fan Clutches

Is your engine running too warm or is your A/C performance failing? It may be time for a new fan clutch. Improve your cooling system's efficiency by engaging the fan when additional cooling is required. Four Seasons fan clutches are offered in clockwise and counterclockwise rotational patterns, depending on the application.

4.18 out of 5 stars ( 67 )

$36.99

$51.99

ACDelco Gold Cooling Fan Clutches

ACDelco Gold cooling fan clutches are high-quality aftermarket replacements for your worn-out original. Fan clutches control the speed of the radiator fan, based on the temperature of the air as it passes through the radiator fins. They're manufactured to meet or exceed your expectations for fit, form and function. Order the model recommended for your vehicle.

4.33 out of 5 stars ( 24 )

$49.99

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 )

$21.99

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 )

$21.99

Clearance

ACDelco Mechanical Water Pumps

ACDelco mechanical pumps are ideal replacement components for many vehicles on the road today. They're manufactured to meet and exceed OE specifications for fit and performance. The pumps are available in many styles, materials, and other options. Order the model recommended for your application. Features and benefits include: * Available for practically all GM vehicles as well as a wide range of non-GM vehicles * Completely pressure-tested for reliable, leak-free performance * Coated seals support seal longevity and durability * Heat-treated shaft assemblies and impellers provide superior strength and durability * High-quality bearings are permanently sealed and lubricated for greater durability and long life * Uniform wall sections and smooth coolant-flow cavities for efficient operation * Cast iron, aluminum, or steel design, depending on vehicle

4.72 out of 5 stars ( 431 )

$46.99

PRW Water Pump Backing Plates

PRW offers water pump backing plates for a variety of applications, including many Ford engines from 1968 and up. These components are used with select pumps, particularly those mounted on engines, to help create a seal and provide support for the pump. PRW replacement plates are machined from aluminum with a natural or black finish. They are crafted to factory specifications to ensure proper fitment and performance. The plates meet or exceed OE quality standards.

Not Yet Reviewed

$22.99

$42.99

Universal Air Conditioner Heater Control Valves

Universal Air Conditioning offers heater control valves for a broad range of vehicles from the 1960s and up. These steel replacements have a gold iridited finish for protection and feature hose barb connection points for common sizes. The valves are built to factory-style specs to ensure a proper fit and performance. Order the model recommended for your application.

5.0 out of 5 stars ( 4 )

$32.99

US Motor Works Thermal Fan Clutches

Designed with quality and performance in mind, US Motor Works thermal fan clutches are engineered and tested to meet or exceed OEM specifications. To produce truly superior fan clutches, US Motor Works uses only the highest quality materials and, as an ISO: 9001:2015 certified company, consistency and quality is verified. Features and benefits of US Motor Works thermal fan clutches: * High-load bearings increase durability and improve wear resistance … for longer life * Improved shaft design for greater strength and enhanced load capacity * Smooth surfaces reduce stress risers * Lowered material stresses during assembly * Full surface contact for all interference fits * Staked end for anti-rotation * CNC-machined, tapped, and drilled mounting surfaces help prevent leaks * Assured fitment with mating components * Select fan clutches include a molded fan

5.0 out of 5 stars ( 5 )

$49.99

Four Seasons Heater Cores

Four Seasons heater cores feature heavy-duty construction for durability and quality engineering to help provide the original factory fit, form, and function. All units include OE-style hardware for installation ease and receive independent testing for proven quality and performance. Keep your older vehicle operating like new with the replacement Four Seasons heater core designed to fit your vehicle.

3.92 out of 5 stars ( 13 )

$34.99

$50.99

Body Parts Radiator Supports

Body Parts radiator supports are aftermarket replacement products for your old or damaged factory units. Keep your radiator secure and your cooling system in tip-top shape with their steel supports parts. An affordable solution for your replacement needs.

3.97 out of 5 stars ( 72 )

$41.99

Modal Header