Replacement Cooling System Parts

1978 Mercury Grand Marquis Engine Cooling Parts

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5.8L
6.6L
7.5L
  • iD Select® - Engine Coolant Water Pump
    iD Select®Engine Coolant Water Pump
    0
    # 3771316347
    Mercury Grand Marquis 1978, Engine Coolant Water Pump with 1 Bypass Tube by iD Select®. Swap out your worn-out or malfunctioning part with this top-notch product from iD Select. It’s built to OEM specifications to offer the same fit,...
    Direct OEM replacement for your malfunctioning partMade to deliver the ultimate in quality, reliability, and value
    $51.27
  • Gates® - Engine Coolant Standard Water Pump
    Gates®Engine Coolant Standard Water Pump
    0
    # 49195933
    Mercury Grand Marquis 1978, Engine Coolant Standard Water Pump by Gates®. Material: Cast Iron. Rotation: Standard. Gates water pumps are recognized in the industry for their durability and superior quality. Every Gates water pump is...
    Great design and functionMade from sturdy materials
    $34.77 - $36.56
  • MotoRad® - Engine Coolant Thermostat
    MotoRad®Engine Coolant Thermostat
    0
    # 5738943605
    Mercury Grand Marquis 1978, Engine Coolant Thermostat by MotoRad®. State-of-the-art equipment, strict quality control, and functional testing to each thermostat ensure customers that they can trust the high-quality product used in their...
    Offer precise pressure controlEnsure the proper fit
    $4.04 - $6.09
  • Motorcraft® - Engine Coolant Thermostat
    Motorcraft®Engine Coolant Thermostat
    0
    # mpn122849049
    Mercury Grand Marquis 5.8L / 6.6L 1978, Engine Coolant Thermostat by Motorcraft®. Temperature: 180F. With today’s complicated automotive engines, it is crucial to have the right cooling system components for accurate temperature...
    Heavy-duty quality for long lifeStainless steel or brass bridge and spring frame, channel-constructed for strength and rigidity
    $17.17
  • Gates® - Premium Engine Coolant Molded Radiator Hose
    Gates®Premium Engine Coolant Molded Radiator Hose
    0
    # 450959465
    Mercury Grand Marquis 1978, Premium Engine Coolant Molded Radiator Hose by Gates®. If you want to keep your vehicle safe on the road for many years to come, go with this Gates product. Developed with the utmost attention to detail and...
    Heat and ozone resistant coverRe-engineered materials resist vacuum collapse, this reduces the need for internal springs in many applications
    $14.01 - $21.90
  • ACDelco® - Professional™ Engine Coolant Radiator Hose
    ACDelco®Professional™ Engine Coolant Radiator Hose
    0
    # 71672332
    Mercury Grand Marquis 1978, Professional™ Engine Coolant Radiator Hose by ACDelco®. Composed of specially blended materials to deliver long-life performance, ACDelco Professional™ Automotive Coolant Hoses are designed to resist...
    Protective sleeves help duplicate GM Original Equipment™ for proper fit and functionDesigned to resist electrochemical degradation for durability
    $12.22 - $31.10
  • Dayco® - Engine Coolant Curved Radiator Hose
    Dayco®Engine Coolant Curved Radiator Hose
    0
    # 57952547
    Mercury Grand Marquis 1978, Engine Coolant Curved Radiator Hose by Dayco®. Contains Heat Shield: No. Contains Protective Sleeve: No. Replace your cracked, spongy, worn out, or damaged radiator hose with this Dayco product manufactured...
    Designed as the OE replacementOE quality and performance at an affordable price
    $9.77 - $19.46
  • GMB® - Engine Water Pump
    GMB®Engine Water Pump
    0
    # 64152688
    Mercury Grand Marquis 1978, Engine Water Pump by GMB®. Rotation: Standard. GMB proudly announces that all principal component parts are designed, manufactured and tested in house, such as bearings, impellers, mechanical seal kits and...
    Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
    $56.31 - $62.79
  • Gates® - OE Type Engine Coolant Thermostat
    Gates®OE Type Engine Coolant Thermostat
    0
    # 48545815
    Mercury Grand Marquis 6.6L 1978, OE Type Engine Coolant Thermostat by Gates®. If you want to keep your vehicle safe on the road for many years to come, go with this Gates product. Developed with the utmost attention to detail and...
    Map Controlled - Bolt-on solution with included sensor that links to the engine control unitSame easy installation as standard ITH
    $8.28
  • Continental® ContiTech™ - Elite™ Engine Coolant Molded Radiator Hose
    Continental® ContiTech™Elite™ Engine Coolant Molded Radiator Hose
    0
    # 451097770
    Mercury Grand Marquis 1978, Elite™ Engine Coolant Molded Radiator Hose by Continental® ContiTech™. This molded hose can be used to replace a molded radiator hose. It has a corrugated cover that easily follows the bends of the OE...
    Versigard EPDM rubber tube and coverDesigned to withstand temperature from -40°F to +257°F
    $13.20 - $23.86
  • MotoRad® - Fail Safe™ Series Thermostat
    MotoRad®Fail Safe™ Series Thermostat
    0
    # 5738800743
    Mercury Grand Marquis 1978, Fail Safe™ Series Thermostat by MotoRad®. Fail-Safe Thermostats offer premium, patented technology for superior protection over any thermostat on the market. Only Fail-Safe is designed to lock in the open...
    $10.76 - $10.97
  • MotoRad® - High-Flow™ Series Thermostat
    MotoRad®High-Flow™ Series Thermostat
    0
    # 5738979754
    Mercury Grand Marquis 1978, High-Flow™ Series Thermostat by MotoRad®. State-of-the-art equipment, strict quality control, and functional testing to each thermostat ensure customers that they can trust the high quality product used in...
    $4.82 - $6.60
  • MotoRad® - UltraStat™ Series Thermostat
    MotoRad®UltraStat™ Series Thermostat
    0
    # 5738779820
    Mercury Grand Marquis 5.8L / 7.5L 1978, UltraStat™ Series Thermostat by MotoRad®. The new MotoRad UltraStat® thermostats are an innovative line offering many features and benefits over the original equipment. Heavy gauge stainless...
    $7.50 - $9.08
  • Gates® - Premium Engine Coolant Thermostat
    Gates®Premium Engine Coolant Thermostat
    0
    # 48545821
    Mercury Grand Marquis 5.8L / 7.5L 1978, Premium Engine Coolant Thermostat by Gates®. If you want to keep your vehicle safe on the road for many years to come, go with this Gates product. Developed with the utmost attention to detail and...
    Great design and functionMade from sturdy materials
    $9.52 - $10.17
  • SKP® - Engine Water Pump
    SKP®Engine Water Pump
    0
    # 4499528747
    Mercury Grand Marquis 1978, Engine Water Pump by SKP®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured...
    High quality at an affordable priceExpertly made from premium materials
    $54.51 - $57.35
  • Hayden® - Super Duty Puller Electric Fan
    Hayden®Super Duty Puller Electric Fan
    0
    # mpn4890057263
    Mercury Grand Marquis 1978, Super Duty Puller Electric Fan by Hayden®. Hayden Automotive offers a full line of engine and transmission cooling products that meet or exceed the original equipment. Virtually every vehicle's cooling system...
    $97.99
  • MotoRad® - Engine Coolant Thermostat Kit
    MotoRad®Engine Coolant Thermostat Kit
    0
    # mpn4743240434
    Mercury Grand Marquis 6.6L 1978, Engine Coolant Thermostat Kit by MotoRad®. Temperature: 192F. State-of-the-art equipment, strict quality control, and functional testing to each thermostat ensure customers that they can trust the high...
    Offer precise pressure controlEnsure the proper fit
    $20.16
  • Four Seasons® - Electric Fan Kit
    Four Seasons®Electric Fan Kit
    0
    # mpn943785221
    Mercury Grand Marquis With 14" Fan 1978, Electric Fan Kit 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 once and fix it right...
    OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
    $79.93
  • Hayden® - Cooling Fan Temperature Switch
    Hayden®Cooling Fan Temperature Switch
    2
    # 517979477
    Mercury Grand Marquis 1978, 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
    $16.87 - $33.58
  • Motorcraft® - Engine Coolant Hose
    Motorcraft®Engine Coolant Hose
    0
    # mpn132490038
    Mercury Grand Marquis 7.5L 1978, Engine Coolant Hose 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 gasket...
    Direct OEM replacementMeets strict Ford Motor Company standards
    $18.47
  • Continental® ContiTech™ - Elite™ Engine Coolant Molded Bypass Hose
    Continental® ContiTech™Elite™ Engine Coolant Molded Bypass Hose
    0
    # 451071258
    Mercury Grand Marquis 1978, Elite™ Engine Coolant Molded Bypass Hose by Continental® ContiTech™. This flexible hose can be used to replace a molded radiator hose. It has a corrugated cover that easily follows the bends of the OE...
    Versigard EPDM rubber tube and coverDesigned to withstand temperature from -40°F to +257°F
    $3.76 - $13.80
  • Dayco® - Engine Coolant Flexible Radiator Hose
    Dayco®Engine Coolant Flexible Radiator Hose
    0
    # 57952555
    Mercury Grand Marquis 1978, Engine Coolant Flexible Radiator Hose by Dayco®. Constructed to replace straight or molded radiator hoses when routing allows, this product is precisely molded in standard lengths. Thanks to its corrugations,...
    Designed to replace straight or molded radiator hoses when routing allowsPrecisely molded in standard lengths
    $15.00 - $21.98
  • ACDelco® - Professional™ Engine Coolant Thermostat
    ACDelco®Professional™ Engine Coolant Thermostat
    0
    # 71672312
    Mercury Grand Marquis 5.8L / 7.5L 1978, Professional™ Engine Coolant Thermostat by ACDelco®. Flange Diameter: 2.125". ACDelco has a Thermostat and Cap for most GM vehicles on the road today. Engineered to work with your car, truck or...
    Heavier-duty components and greater flow rates than standard-line thermostats.Designed to be OE-like
    $2.76 - $6.74
  • Gates® - Economy Engine Coolant Thermostat
    Gates®Economy Engine Coolant Thermostat
    0
    # 48545818
    Mercury Grand Marquis 5.8L / 7.5L 1978, Economy Engine Coolant Thermostat by Gates®. If you want to keep your vehicle safe on the road for many years to come, go with this Gates product. Developed with the utmost attention to detail and...
    Great design and functionMade from sturdy materials
    $6.73 - $7.16
  • Dayco® - Engine Coolant Water Pump
    Dayco®Engine Coolant Water Pump
    0
    # 1845997481
    Mercury Grand Marquis 1978, Engine Coolant Water Pump by Dayco®. The engine cooling system stabilizes the engine operating temperature by limiting the rise above the expected limits. The coolant is circulated by the water pump, which...
    Designed for the replacement of worn or damaged timing belts, tensioners, belt idlers, hydraulic actuators and water pumpsMeets or exceeds OE quality, fit, form and function requirements
    $45.44 - $47.57
  • Four Seasons® - Auxiliary Engine Cooling Fan
    Four Seasons®Auxiliary Engine Cooling Fan
    0
    # 2569272588
    Mercury Grand Marquis 1978, Auxiliary Engine Cooling Fan by Four Seasons®. Location: Auxiliary. All products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of car parts experience, fix it...
    OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
    $112.02 - $121.57
  • Hayden® - Rapid-Cool™ Universal Fit Reversible Fan Kit
    Hayden®Rapid-Cool™ Universal Fit Reversible Fan Kit
    0
    # mpn4890057268
    Mercury Grand Marquis 1978, Rapid-Cool™ Universal Fit Reversible Fan Kit by Hayden®. This product can be used for either primary or add-on cooling. The Hayden Rapid-Cool fan features a thin, aerodynamic profile and reversible...
    $70.68
  • Hayden® - Super Duty Pusher Electric Fan
    Hayden®Super Duty Pusher Electric Fan
    0
    # mpn4890057267
    Mercury Grand Marquis 1978, Super Duty Pusher Electric Fan by Hayden®. Hayden Automotive offers a full line of engine and transmission cooling products that meet or exceed the original equipment. Virtually every vehicle's cooling system...
    $110.05
  • ACDelco® - Professional™ Straight Engine Coolant Bypass Hose
    ACDelco®Professional™ Straight Engine Coolant Bypass Hose
    0
    # mpn4632877353
    Mercury Grand Marquis 7.5L 1978, Professional™ Straight Engine Coolant Bypass Hose by ACDelco®. Contains Spring: No. Construction: Straight. Composed of specially blended materials to deliver long-life performance, ACDelco...
    Protective sleeves help duplicate GM Original Equipment™ for proper fit and function.Designed to resist electrochemical degradation for durability.
    $56.39
  • Gates® - Vulco-Flex II™ Radiator Coolant Flexible Hose
    Gates®Vulco-Flex II™ Radiator Coolant Flexible Hose
    0
    # 49195936
    Mercury Grand Marquis 1978, Vulco-Flex II™ Radiator Coolant Flexible Hose by Gates®. If you want to keep your vehicle safe on the road for many years to come, go with this Gates product. Developed with the utmost attention to detail...
    Great design and functionMade from sturdy materials
    $17.26 - $27.24




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