1978 Mercury Grand Marquis A/C Relays, Sensors & Switches
Select Your Submodel
-
Four Seasons®A/C Clutch Cycle SwitchMercury Grand Marquis with Dealer Installed A/C 1978, A/C Clutch Cycle Switch by Four Seasons®. Front. With 34" Capillary Tube. Products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of...Contains gaskets, o-rings, or seals to properly replace the productPrecision engineered$31.86 - Motorcraft®HVAC Blower Control SwitchMercury Grand Marquis 1978, HVAC Blower Control Switch by Motorcraft®. Motorcraft is the way to restore the performance of your vehicle. Designed specifically for your vehicle, Motorcraft products meet stringent Ford Motor Company...Direct OEM replacement for proper fitRecommended by Ford Motor Company$25.22
- Standard®HVAC Blower Control SwitchMercury Grand Marquis with Dealer Installed A/C 1978, HVAC Blower Control Switch by Standard®. Type: 4 Blade Male Terminal. Number Of Switch Positions: 4. Standard is to be the leading independent supplier to the automotive aftermarket,...Standard switches are designed using copper alloy conductors to ensure superior electrical conductivity with low resistive lossesStandard parts are 100% tested to verify both mechanical and electrical switching performance$25.46
- Four Seasons®A/C Compressor Wiring HarnessMercury Grand Marquis with A6 Compressor 1978, A/C Compressor Wiring Harness by Four Seasons®. With 2 Spade Rectangle Connector. Type: 2 Terminals. Products are engineered and tested to provide years of trouble free operation. Backed by...OE style connectorsMolded plastic construction$8.89
- Four Seasons®HVAC Harness ConnectorMercury Grand Marquis without Automatic Temperature Control 1978, HVAC Harness Connector by Four Seasons®. With Gauge. Terminal Quantity: 1. Type: 1 Terminal. Products are engineered and tested to provide years of trouble free...Molded plastic constructionOE style connectors$2.60
- Four Seasons®Harness Connector AdapterMercury Grand Marquis with A6 Compressor 1978, Harness Connector Adapter by Four Seasons®. Products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile A/C experience, fix it once and...Precision moldedOE style connectors$9.42 - $10.31
- Four Seasons®Lever Selector Blower SwitchMercury Grand Marquis 1978, Lever Selector Blower Switch by Four Seasons®. With Rectangle Connector Shape. Type: 4 Terminals. Products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of...Premium parts you can rely onDesigned to keep your A/C system in top shape$24.58 - $38.63
- Dorman®HVAC Clutch Coil ConnectorMercury Grand Marquis with Frigidaire A6 Compressor 1978, HVAC Clutch Coil Connector by Dorman®. Non-Weatherpack Style. Type: Blade Female Terminal. Wire Quantity: 2. Overall Length: 7". Non-Weatherpack Style. Dorman offers a...Direct replacement A/C Clutch Coil Connectors available (where applicable) to ensure a proper fitVehicle try-on testing has been conducted on this part to ensure a trouble-free performance$7.74
- Standard®HVAC Blower Motor ConnectorMercury Grand Marquis 1978, HVAC Blower Motor Connector by Standard®. Type: 5 Blade Female Terminal. Finish: Gray. Wire Quantity: 5. Harness Length: 4". With Butt Splices. Standard is to be the leading independent supplier to the...Offering hundreds of high-quality pigtails and sockets for nearly every electrical jobUtilizing high grade materials to ensure peak conductivity and perfect connections$11.69
- WVE®HVAC Blower Control SwitchMercury Grand Marquis without Automatic Temperature Control 1978, HVAC Blower Control Switch by WVE®. With 4 Terminals. Replace your worn-out or faulty component with this quality replacement from WVE. This product is designed and...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$24.27
- Four Seasons®HVAC Blower Switch ConnectorMercury Grand Marquis 1978, HVAC Blower Switch Connector by Four Seasons®. With Lever. Type: 5 Terminals. Products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile A/C experience,...OE style connectorsMolded plastic construction$13.36
- Dorman®HVAC Switch ConnectorMercury Grand Marquis 1978, HVAC Switch Connector by Dorman®. Location: To Blower Motor. Type: Blade Female Terminal. Wire Quantity: 5. Overall Length: 7". Improved wiring and highly durable insulation resist the corrosion, overheating...Save time and expense by replacing the part, not the entire harnessBulb simply plugs into socket for ease of installation$7.31
- Standard®Handypack™ HVAC Blower Motor ConnectorMercury Grand Marquis 1978, Handypack™ HVAC Blower Motor Connector by Standard®. Type: 5 Female Terminal. Finish: Gray. Standard is to be the leading independent supplier to the automotive aftermarket, providing the highest quality...The handypack™ program is the most complete wiring center with 17 assortments available. Featuring application and non-application electrical products, handypack™ has the products and tools needed to get your electrical job done right.Pigtail and Socket Assembly$8.14
- WVE®HVAC Blower Motor ConnectorMercury Grand Marquis without Automatic Temperature Control 1978, HVAC Blower Motor Connector by WVE®. With 5 Lead Wires. Replace your worn-out or faulty component with this quality replacement from WVE. This product is designed and...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$11.16
- Santech®HVAC Switch ConnectorMercury Grand Marquis with Dealer A/C / with Factory A/C 1978, HVAC Switch Connector by Santech®. Make your beloved vehicle perform reliably, efficiently, and smoothly again with this top-grade A/C component from Santech. Designed to...Designed as a direct, bolt-on replacement for your original A/C partExcellent solution to restore dependable, enjoyable, and worry-free ride$11.11
Shop By Service Type
Popular Products
1978 Mercury Grand Marquis A/C Relays, Sensors Reviews
1 review
Cycling Clutch Sensor
Supercool® - Cycling Pressure SwitchPosted by Jose Manuel (Katy, TX) / June 16, 20201992 Hyundai Sonata
Related Searches