1978 Mercury Grand Marquis Engine Cooling Parts

Replacement Cooling System Parts
Select Your Submodel
5.8L
6.6L
7.5L
  • Standard® - Tru-Tech™ Engine Coolant Temperature Sender
    Standard®Tru-Tech™ Engine Coolant Temperature Sender
    0
    # mpn1423768
    Mercury Grand Marquis 1978, 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 Switch
    Standard®Tru-Tech™ Engine Coolant Temperature Switch
    0
    # mpn1387264
    Mercury Grand Marquis without Automatic Temperature Control 1978, 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 Sender
    WVE®Engine Coolant Temperature Sender
    0
    # mpn4649178548
    Mercury Grand Marquis 1978, 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
  • WVE® - Engine Coolant Temperature Switch
    WVE®Engine Coolant Temperature Switch
    0
    # mpn4649178772
    Mercury Grand Marquis With Automatic Temperature Control 1978, Engine Coolant Temperature Switch by WVE®. Terminal Quantity: 2. Connector Shape: Round. Terminal Type: Threaded. Replace your worn-out or faulty component with this quality...
    Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile
    $18.55
  • Phillips & Temro® - Engine Coolant Hose Heater
    Phillips & Temro®Engine Coolant Hose Heater
    0
    # 4010914224
    Mercury Grand Marquis 1978, Engine Coolant Hose Heater by Phillips & Temro®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and...
    Installs in minutes in non-corrugated lower radiator hoseThermostatically protected (245°F/118°C maximum heater temperature)
    $44.33 - $53.06
  • Gates® - Engine Coolant Safety Release Radiator Cap
    Gates®Engine Coolant Safety Release Radiator Cap
    0
    # mpn1933789
    Mercury Grand Marquis 1978, Engine Coolant Safety Release Radiator Cap by Gates®. Pressure: 16 psi. Type: Optional System. Shell Diameter: 2.61". Filler Neck Outside Diameter: 2.13". Cap Depth: 1.5". Filler Neck Inside Diameter: 1.61"....
    Great design and functionMade from sturdy materials
    $7.85
  • Four Seasons® - Radiator Fan Controller
    Four Seasons®Radiator Fan Controller
    0
    # mpn947117488
    Mercury Grand Marquis 1978, 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
  • Fel-Pro® - Water Pump Gasket
    Fel-Pro®Water Pump Gasket
    0
    # 40675145
    Mercury Grand Marquis 1978, Water Pump Gasket by Fel-Pro®. If you need durable gaskets to prevent leaks on your vehicle, Fel-Pro is the way to go. Engineered using the latest technologies and global engineering resources, the gaskets...
    Meets or exceeds all original equipment specificationsApplication specific design to Ensures a perfect fit
    $1.84 - $3.10
  • Mahle® - Engine Coolant Water Pump Gasket
    Mahle®Engine Coolant Water Pump Gasket
    0
    # 3771330302
    Mercury Grand Marquis 1978, Engine Coolant Water Pump Gasket by Mahle®. Material: Paper. Keep your cooling system running leak-free, with superior-grade Mahle seals and gaskets designed to provide OE form, fit, and function. Made using...
    Designed to seal your cooling system from leaksMade from high-quality materials for utmost reliability
    $2.01 - $2.97
  • Stant® - Engine Coolant Thermostat Gasket
    Stant®Engine Coolant Thermostat Gasket
    0
    # 2687890894
    Mercury Grand Marquis 1978, Engine Coolant Thermostat Gasket by Stant®. Bolt Hole Diameter: 1 27/32". Cut installation time by as much as 50% with Stat Lok® adhesive backed thermostat gaskets. They’ll hold the thermostat in place,...
    Gaskets are cut to specific application requirementsStat Lok® Gaskets have adhesive backs to aid installation
    $0.91
  • Apex Auto® - Engine Coolant Water Pump Gasket
    Apex Auto®Engine Coolant Water Pump Gasket
    0
    # 1684569755
    Mercury Grand Marquis 5.8L Windsor Engine 1978, Engine Coolant Water Pump Gasket by Apex Auto®. Increase the life of your vehicle's engine by keeping your cooling system in top condition. Replace your faulty engine cooling component...
    Quick accurate delivery with excellent fill-rateExcellent inventory availability
    $1.82 - $2.05
  • WVE® - Engine Cooling Fan Module
    WVE®Engine Cooling Fan Module
    0
    # mpn4839941327
    Mercury Grand Marquis 1978, 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
  • Dorman® - Radiator Drain Petcock
    Dorman®Radiator Drain Petcock
    0
    # mpn2362049
    Mercury Grand Marquis 1978, Radiator Drain Petcock by Dorman®. Dorman offers a variety of Radiator Drain Petcocks for a range of applications. Their high-quality design ensures effective draining of the cooling system.
    Designed to maintain proper cooling level and prevent overheatingDurably engineered for a long service life
    $3.93
  • Dorman® - Engine Coolant Water Pump Stud Kit
    Dorman®Engine Coolant Water Pump Stud Kit
    0
    # mpn2371003
    Mercury Grand Marquis 5.8L 1978, Engine Coolant Water Pump Stud Kit by Dorman®. Either zinc-plated or coated with black oxide for corrosion resistance, the hardware included in Dorman’s Water Pump Stud Kit resists stripping or...
    Comes with all necessary hardware to complete the repairRust-resistant
    $8.10
  • SKP® - Engine Coolant Water Pump Stud Kit
    SKP®Engine Coolant Water Pump Stud Kit
    0
    # mpn4759478874
    Mercury Grand Marquis 5.8L 1978, Engine Coolant Water Pump Stud Kit by SKP®. Location: Water Pump to Front Cover. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a...
    High quality at an affordable priceExpertly made from premium materials
    $4.78
  • Victor Reinz® - Engine Coolant Water Pump Gasket
    Victor Reinz®Engine Coolant Water Pump Gasket
    0
    # 3597388179
    Mercury Grand Marquis 1978, Engine Coolant Water Pump Gasket by Victor Reinz®. Increase the life of your vehicle's engine by keeping your cooling system in top condition. Replace your faulty engine cooling component with this highly...
    OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
    $2.06 - $2.73
  • WVE® - Engine Coolant Temperature Sensor Connector
    WVE®Engine Coolant Temperature Sensor Connector
    0
    # mpn4649178580
    Mercury Grand Marquis 1978, Engine Coolant Temperature Sensor Connector by WVE®. Terminal Quantity: 1. Terminal Type: Pin. 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
    $2.22
  • Continental® ContiTech™ - Serpentine Belt
    Continental® ContiTech™Serpentine Belt
    0
    # 631901755
    Mercury Grand Marquis 1978, Serpentine Belt by Continental® ContiTech™. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and...
    Made with precision and quality in mindDesigned to meet your specific needs
    $12.28 - $24.10
  • Dayco® - Top Cog™ V-Belt
    Dayco®Top Cog™ V-Belt
    0
    # 631930850
    Mercury Grand Marquis 1978, Top Cog™ V-Belt by Dayco®. Specially constructed for vehicles that utilize the multiple-belt system, this product features raw-edge construction along with a patented top cogged design, which ensures...
    Designed for power transmission to vehicle accessoriesConstructed for vehicles that utilize V-belts
    $9.85 - $14.17
  • ACDelco® - Professional™ Standard High Capacity V-Belt
    ACDelco®Professional™ Standard High Capacity V-Belt
    0
    # 4880845540
    Mercury Grand Marquis 1978, Professional™ Standard High Capacity V-Belt by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your...
    Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
    $13.72 - $44.05Save: up to 16%
    $11.56 - $37.39
  • Four Seasons® - Adjustable Drive Belt Idler Pulley
    Four Seasons®Adjustable Drive Belt Idler Pulley
    0
    # mpn4919302947
    Mercury Grand Marquis with Dealer A/C 1978, Adjustable Drive Belt Idler Pulley by Four Seasons®. All products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of car parts experience, fix it...
    Made with precision and quality in mindDesigned to meet your specific needs
    $15.79
  • Dayco® - No Slack™ Light Duty Idler/Tensioner Pulley
    Dayco®No Slack™ Light Duty Idler/Tensioner Pulley
    0
    # mpn385425689
    Mercury Grand Marquis with Dealer A/C 1978, No Slack™ Light Duty Idler/Tensioner Pulley by Dayco®. Dayco's reputation for top performance idler and tensioner pulleys is a result of advanced automotive technologies employed in...
    Made with precision and quality in mindDesigned to meet your specific needs
    $23.58
  • Gates® - Automotive XL™ V-Belt
    Gates®Automotive XL™ V-Belt
    0
    # 631512048
    Mercury Grand Marquis 1978, Automotive XL™ V-Belt by Gates®. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with customers in mind. It...
    Made with precision and quality in mindDesigned to meet your specific needs
    $13.15 - $28.93
  • Continental® ContiTech™ - V-Belt
    Continental® ContiTech™V-Belt
    0
    # mpn4806743966
    Mercury Grand Marquis 5.8L / 6.6L 1978, V-Belt by Continental® ContiTech™. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and...
    Made with precision and quality in mindDesigned to meet your specific needs
    $14.61
  • Goodyear Belts® - Accessory Drive V-Belt
    Goodyear Belts®Accessory Drive V-Belt
    0
    # 3623473318
    Mercury Grand Marquis 1978, Accessory Drive V-Belt by Goodyear Belts®. Goodyear Belts has developed V-belts that meet or exceed OE requirements, ensuring long belt life and quiet operation. Restore your belt drive system’s efficiency...
    Meets or Exceeds OEM SpecificationsLong-life EPDM Rubber Compound
    $8.71 - $22.09
  • Hayden® - Adjustable Idler/Tensioner Pulley
    Hayden®Adjustable Idler/Tensioner Pulley
    0
    # mpn2937090
    Mercury Grand Marquis with Dealer A/C 1978, Adjustable Idler/Tensioner Pulley by Hayden®. This part is designed to route the drive belt and keep it tight. If the pulley goes bad, it can cause problems with cooling, charging, steering,...
    Constructed to ensure OE quality and reliabilityMade of steel and thermoplastic for long service life and superior dampening
    $17.45
  • Continental® ContiTech™ - Accessory Drive Belt
    Continental® ContiTech™Accessory Drive Belt
    0
    # 5733099640
    Mercury Grand Marquis 1978, Accessory Drive Belt by Continental® ContiTech™. This belt is designed with teeth molded directly into its surface to avoid slipping for reliable and efficient performance. Manufactured using the latest...
    OE quality product for safe, reliable, and efficient performanceManufactured using the latest material technology
    $10.97 - $13.58
  • Continental® ContiTech™ - Accessory Drive Belt
    Continental® ContiTech™Accessory Drive Belt
    0
    # 4405675777
    Mercury Grand Marquis 1978, Accessory Drive Belt by Continental® ContiTech™. This belt is designed with teeth molded directly into its surface to avoid slipping for reliable and efficient performance. Manufactured using the latest...
    OE quality product for safe, reliable, and efficient performanceManufactured using the latest material technology
    $12.83 - $19.03
  • Dayco® - Drive Rite™ V-Belt
    Dayco®Drive Rite™ V-Belt
    1
    # 1404661881
    Mercury Grand Marquis 1978, Drive Rite™ V-Belt by Dayco®. Specially formulated high temperature Polymer along with the highest level of engineered reinforcement proves to perform better in belt operating temperature and efficiency...
    Faster and more consistent throttle response at high speedsQuicker throttle response at mid-speed acceleration
    $2.19 - $8.77
  • Dayco® - Top Cog™ GOLD Label™ V-Belt
    Dayco®Top Cog™ GOLD Label™ V-Belt
    0
    # 632024772
    Mercury Grand Marquis 1978, Top Cog™ GOLD Label™ V-Belt by Dayco®. Built with cogs in its top, the belt provides additional flexibility around small pulleys while the increased surface area results in a cooler running belt for...
    Constructed to deliver extended life in demanding diesel applicationsCogs in the top of the belt for increased flexibility around small pulleys
    $17.69 - $26.43




Shop By Service Type

Popular Products

CARiD FacebookCARiD TwitterCARiD YouTube ChannelCARiD PinterestCARiD Instagram
Inspiration Gallery
All manufacturer names, symbols, and descriptions, used in our images and text are used solely for identification purposes only. It is neither inferred nor implied that any item sold by CARiD.com is a product authorized by or in any way connected with any vehicle manufacturers displayed on this page.
CUSTOMER SERVICE
INFORMATION
CONTACTS