Summit Racing SpeedCard - learn how to get 15% back up to $150

Summit Racing SpeedCard - learn how to get 15% back up to $150

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MERCURY GRAND MARQUIS Cooling & Heating

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Results 1 - 6 of 6

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ACDelco Air Conditioning Compressors

ACDelco air conditioning compressors are an ideal choice for a custom hot rod project or standard OEM replacement. They're available in new or cost-alternative remanufactured units for fitment on a wide range of applications. The heart of any air conditioning system is the compressor—their primary function is to compress and transfer refrigerant gas. The intake side draws in refrigerant gas from the outlet of the evaporator. Once condensed to a gas, it's then discharged to the condenser, where it can transfer the heat that is absorbed from the inside of the vehicle.

4.18 out of 5 stars ( 91 )

$232.99

Summit Bucks

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 )

$50.99

$59.99

On Sale

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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 )

$68.95


$62.06

Summit Bucks

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

4.71 out of 5 stars ( 441 )

$52.99

Summit Bucks

ACDelco Heater Valves

ACDelco heater valves control the flow of coolant through the heater core. These valves close to stop coolant from flowing through the heater core, permitting maximum cooling from the A/C evaporator. ACDelco aftermarket replacement HVAC heater control valves are manufactured to meet or exceed your expectations for quality and function.

4.86 out of 5 stars ( 7 )

$16.99

Summit Bucks

ACDelco Air Intake Duct Drain Hoses

ACDelco air intake duct drain hoses feature flexible, heat-resistant materials reinforced with helical wire for longer life. You can easily cut and form them to a desired shape and length for your convenience. For the quality, reliability, and durability of original equipment—all manufactured to factory specifications for fit, form, and function—order the recommended ACDelco air intake duct drain hoses designed to fit your vehicle.

3.0 out of 5 stars ( 2 )

$18.99

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