1981 Mercury Grand Marquis Cooling System Switches, Sensors & Relays
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Four Seasons®Coolant Temperature SensorMercury Grand Marquis 1981, Coolant Temperature Sensor by Four Seasons®. Terminal Quantity: 2. Temperature On: 29. Connector Shape: Round. Connector Gender: Female. Terminal Type: Pin. All products are engineered and tested to provide...Brass Construction for Accurate Temperature SensingColor Coded for Easy Identification$10.90 - WVE®Engine Coolant Temperature SensorMercury Grand Marquis 1981, Engine Coolant Temperature Sensor by WVE®. Terminal Quantity: 2. Connector Shape: Round. Terminal Type: Pin. Replace your worn-out or faulty component with this quality replacement from WVE. This product is...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$12.63
- Motorcraft®Coolant Temperature SensorMercury Grand Marquis 5.8L 1981, Coolant Temperature Sensor by Motorcraft®. With today’s complicated automotive engines, it is crucial to have the right cooling system components for accurate temperature control, pressure relief, and...OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price$37.52
- Walker Products®Engine Coolant Temperature SenderMercury Grand Marquis 1981, Engine Coolant Temperature Sender by Walker Products®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It...High quality at an affordable priceExpertly made from premium materials$12.92
- NTK®Engine Coolant Temperature SensorMercury Grand Marquis 4.2L 1981, Engine Coolant Temperature Sensor by NTK®. Connector Shape: Round. Designed utilizing the latest technology, this product by NTK features premium quality and will perform better than advertised. Perfect...Increases vehicle fuel economy and engine performance while decreasing vehicle exhaust emissionsDirect replacement$12.34
- Standard®Engine Coolant Temperature SensorMercury Grand Marquis 5.0L 1981, Engine Coolant Temperature Sensor by Standard®. Terminal Quantity: 2. Connector Shape: Round. Connector Gender: Female. Terminal Gender: Male. Terminal Type: Pin. Standard is to be the leading...Global manufacturer of automotive aftermarket productsDirect-fit OE replacement that ensures ease of installation$21.12
- Standard®Engine Coolant Temperature SwitchMercury Grand Marquis without Automatic Temperature Control 1981, Engine Coolant Temperature Switch by Standard®. Terminal Quantity: 1. Connector Shape: Round. Connector Gender: Male. Connector Quantity: 1. Terminal Type: Stud. Standard...In production, all thermal switches are factory-calibrated to make electrical contact at the specified lower-temperature set pointStandard switches feature a robust design with high grade materials to meet the stringent demands of today's service professional$15.42
- Standard®Tru-Tech™ Engine Coolant Temperature SensorMercury Grand Marquis 5.0L 1981, Tru-Tech™ Engine Coolant Temperature Sensor by Standard®. Terminal Quantity: 2. Connector Shape: Round. Connector Gender: Female. Connector Quantity: 1. Terminal Gender: Male. Terminal Type: Pin,...OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price$9.22
- Standard®Engine Coolant Temperature SenderMercury Grand Marquis 1981, Engine Coolant Temperature Sender by Standard®. With Gauge. Terminal Quantity: 1. Connector Shape: Round. Connector Gender: Male. Connector Quantity: 1. Terminal Type: Stud. Standard is to be the leading...OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price$18.17
- Standard®Tru-Tech™ Engine Coolant Temperature SenderMercury Grand Marquis 1981, Tru-Tech™ Engine Coolant Temperature Sender by Standard®. Terminal Quantity: 1. Connector Shape: Round. Connector Gender: Male. Connector Quantity: 1. Terminal Type: Stud. With Gauge. Standard is to be the...The terminal is manufactured with high grade materialsThe housing is fabricated using polyamide resins$8.58
- Standard®Tru-Tech™ Engine Coolant Temperature SwitchMercury Grand Marquis without Automatic Temperature Control 1981, Tru-Tech™ Engine Coolant Temperature Switch by Standard®. Terminal Quantity: 1. Connector Gender: Male. Terminal Type: Stud. Standard is to be the leading independent...OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price$12.79
- WVE®Engine Coolant Temperature SenderMercury Grand Marquis 1981, Engine Coolant Temperature Sender by WVE®. Terminal Quantity: 1. Connector Shape: Round. Connector Quantity: 1. Terminal Type: Threaded. Overall Length: 1.71". Replace your worn-out or faulty component with...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$7.92
- Original Engine Management®Engine Coolant Temperature SensorMercury Grand Marquis 1981, Engine Coolant Temperature Sensor by Original Engine Management®. Designed to strictly meet O.E. operating temperature specifications, Original Engine Management coolant temperature sensors/switches are...Made to deliver trouble-free operation for years aheadManufactured with cutting-edge technology$8.43
- Four Seasons®Radiator Fan ControllerMercury Grand Marquis 1981, Radiator Fan Controller by Four Seasons®. Connector Shape: Rectangle. Connector Gender: Male. Voltage: 12 V. Radiator Mounted. Activated by radiator temp and/or A/C Clutch. Adjustable (140° - 220 °F) with...OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price$39.63
- WVE®Engine Coolant Temperature Sensor ConnectorMercury Grand Marquis 1981, Engine Coolant Temperature Sensor Connector by WVE®. Terminal Type: Pin. Replace your worn-out or faulty component with this quality replacement from WVE. This product is designed and tested to ensure the...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$2.22 - $13.85
- WVE®Engine Cooling Fan ModuleMercury Grand Marquis 1981, Engine Cooling Fan Module by WVE®. Replace your worn-out or faulty component with this quality replacement from WVE. This product is designed and tested to ensure the ultimate in durability and functionality....Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$46.24
- WVE®Engine Cooling Fan Motor ConnectorMercury Grand Marquis 1981, Engine Cooling Fan Motor Connector by WVE®. Terminal Type: Blade. Replace your worn-out or faulty component with this quality replacement from WVE. This product is designed and tested to ensure the ultimate...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$16.65 - $25.04
- United Motor Products®Engine Coolant Temperature Sensor ConnectorMercury Grand Marquis 1981, Engine Coolant Temperature Sensor Connector by United Motor Products®. Keep your pride and joy operating as it should with this top-notch part from United Motors Products. It’s made using the finest...Excellent replacement for your worn out factory partWill help make your vehicle running as good as new$7.74
- Hayden®Cooling Fan Temperature SwitchMercury Grand Marquis 1981, Cooling Fan Temperature Switch by Hayden®. Hayden Automotive engineers, manufactures and supplies a wide range of products designed to keep your car, truck or performance vehicle running cool. From fan...Designed for single or dual fan applicationsBrass construction for accurate temperature sensing$17.32 - $37.30
- MotoRad®Engine Coolant Temperature SenderMercury Grand Marquis With Coolant Temperature Gauge 1981, Engine Coolant Temperature Sender by MotoRad®. MotoRad conducts highly controlled validation using advanced testing equipment that is integrated into the production process of...Made to keep your vehicle's engine running coolDesigned to maintain proper cooling level and prevent overheating$8.57
- MotoRad®Engine Coolant Temperature SwitchMercury Grand Marquis 1981, Engine Coolant Temperature Switch by MotoRad®. MotoRad conducts highly controlled validation using advanced testing equipment that is integrated into the production process of all products.Made to keep your vehicle's engine running coolDesigned to maintain proper cooling level and prevent overheating$11.66
- Herko®Engine Coolant Temperature SensorMercury Grand Marquis 5.8L Canada Built / USA Built 1981, Engine Coolant Temperature Sensor by Herko®. Make your beloved vehicle perform reliably, efficiently, and smoothly again with this top-grade A/C component from Santech. Designed...Designed as a replacement for your worn-out fuel system partWill help optimize your vehicle’s performance and fuel efficiency$8.45
- Prenco®Engine Coolant Temperature SensorMercury Grand Marquis 1981, Engine Coolant Temperature Sensor by Prenco®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet...High quality at an affordable priceExpertly made from premium materials$7.53
- MotoRad®Engine Coolant Temperature SensorMercury Grand Marquis 5.0L 1981, Engine Coolant Temperature Sensor by MotoRad®. MotoRad conducts highly controlled validation using advanced testing equipment that is integrated into the production process of all products.Made to keep your vehicle's engine running coolDesigned to maintain proper cooling level and prevent overheating$31.13
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1981 Mercury Grand Marquis Models
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