1978 Mercury Marquis Thermostats & Components

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    • (0 reviews)
      # 911974704
      Mercury 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 vehicle.
      Offer precise pressure controlEnsure the proper fit
      $2.21 - $3.15
    • (0 reviews)
      # 83176491
      Mercury Marquis 1978, Coolant Thermostat Housing by Dorman®. Bolt Hole Diameter: 0.313". Quantity: 2 Bolt Hole. Finish: Natural. Re-engineered to address common failure points in the original equipment, Dorman’s Engine Coolant...
      Direct replacement for a proper fit every timeHoses slide on for easy installation
      $6.07 - $9.30
    • (0 reviews)
      # mpn136796
      Mercury Marquis 5.8L 1978, Engine Coolant Thermostat with Gasket/Seal and without Housing by Beck Arnley®. Temperature: 192 Degree. For one hundred years, Beck Arnley has been providing premium OE quality parts for vehicles. Beginning...
      Features a standard Jiggle Valve where required by OE and has a long stroke for maximum coolingSelf Cleaning and controls the flow of coolant through radiator regulating heat dissipation and allows engine to reach operating temp as quickly as possible
      $6.11
    • (0 reviews)
      # 71672956
      Mercury Marquis 1978, Professional™ Engine Coolant Thermostat by ACDelco®. ACDelco has a Thermostat and Cap for most GM vehicles on the road today. Engineered to work with your car, truck or SUV, ACDelco Professional Thermostats come...
      Heavier-duty components and greater flow rates than standard-line thermostats.Designed to be OE-like.
      $2.67 - $5.89
    • (0 reviews)
      # 911908937
      Mercury Marquis 5.8L / 7.5L 1978, Economy 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
      $1.31 - $1.80
    • (0 reviews)
      # mpn122849049
      Mercury Marquis 5.8L / 6.6L 1978, Thermostat by Motorcraft®. Temperature: 180 Degree. With today’s complicated automotive engines, it is crucial to have the right cooling system components for accurate temperature control, pressure...
      Heavy-duty quality for long lifeStainless steel or brass bridge and spring frame, channel-constructed for strength and rigidity
      $11.31
    • (0 reviews)
      # 906454935
      Mercury Marquis 5.8L / 7.5L 1978, Economy Thermostat without Check Valves and Seal by Stant®. Without Jiggle Pin. Get fast engine warm-up and dependable engine operating temperature with a Stant thermostat. Stant’s exclusive ELAC®...
      Quality construction ensures exact fit and prolonged service life.Stainless steel bridge with channel-design for strength and rigidity.
      $1.81
    • (0 reviews)
      # 101843444
      Mercury Marquis 6.6L 1978, OE Type Thermostat without Gaskets, Check Valves and Seal by Stant®. Without Installation Tool and Jiggle Pin. OE Quality. Get fast engine warm-up and dependable engine operating temperature with a Stant...
      Quality construction ensures exact fit and prolonged service life.Stainless steel bridge with channel-design for strength and rigidity.
      $3.48
    • (0 reviews)
      # 101843811
      Mercury Marquis 5.8L / 7.5L 1978, Premium Thermostat without Check Valves and Seal by Stant®. Without Jiggle Pin. Get fast engine warm-up and dependable engine operating temperature with a Stant thermostat. Stant’s exclusive ELAC®...
      Quality construction ensures exact fit and prolonged service life.Stainless steel bridge with channel-design for strength and rigidity.
      $4.60 - $4.65
    • (0 reviews)
      # 48546461
      Mercury Marquis 5.8L / 7.5L 1978, Economy Thermostat by Gates®. Depth from Flange: 0.78". Flange Diameter: 2.125". Height from Flange: 0.88". If you want to keep your vehicle safe on the road for many years to come, go with this Gates...
      Great design and functionMade from sturdy materials
      $2.69 - $3.05
    • (0 reviews)
      # 48546435
      Mercury Marquis 6.6L 1978, Engine Coolant OE Type Thermostat by Gates®. As Required. 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
      $3.42 - $3.89
    • (0 reviews)
      # 48546464
      Mercury Marquis 5.8L / 7.5L 1978, Premium Thermostat by Gates®. Depth from Flange: 0.91". Flange Diameter: 2.125". Height from Flange: 0.91". If you want to keep your vehicle safe on the road for many years to come, go with this Gates...
      Great design and functionMade from sturdy materials
      $4.51 - $4.97
    • (0 reviews)
      # 906459058
      Mercury Marquis 1978, Professional™ Engine Coolant Thermostat Housing Gasket by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $0.39
    • (0 reviews)
      # mpn749206
      Mercury Marquis 1978, Coolant Thermostat Housing Seal by Fel-Pro®. If you are looking for quality sealing solutions, Fel-Pro offers you various replacement products from seals and bolts to O-Rings and dowel pins. Engineered using the...
      Direct OEM replacement for a proper fitEnsures reliable sealing performance
      $1.04
    • (0 reviews)
      # 101843878
      Mercury Marquis 1978, Thermostat Housing Gasket by Stant®. Cut installation time by as much as 50% with Stat Lok® adhesive backed thermostat gaskets. They’ll hold the thermostat in place, leaving your hands free to secure the outlet....
      Gaskets are cut to specific application requirementsStat Lok® Gaskets have adhesive backs to aid installation
      $0.30 - $0.64
    • (0 reviews)
      # mpn4517491984
      Mercury Marquis 5.8L Windsor Engine 1978, Engine Coolant Thermostat Housing O-Ring 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
      $0.65
    • (0 reviews)
      # 911936025
      Mercury Marquis 1978, Fail Safe Series™ Engine Coolant 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...
      Exclusive, patented designHigh quality Stainless Steel and Copper construction
      $9.24 - $9.65
    • (0 reviews)
      # 912035833
      Mercury Marquis 1978, High-Flow Series™ 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...
      Made of stainless steelProvide increased flow
      $5.92 - $6.71
    • (0 reviews)
      # 911964015
      Mercury Marquis 5.8L / 7.5L Legal for Race Use Only 1978, High Performance Thermostat by Mr. Gasket®. Diameter: 2.12". Keeping your engine cool is pretty important, so Mr. Gasket has a full line of cooling system accessories. Whether...
      Designed to resist large variations of coolant pressure at high RPMOpens at correct temperature consistently regardless of engine RPM
      $16.20
    • (0 reviews)
      # 81804756
      Mercury Marquis 7.5L with Small Block Ford 1978, Thermostat Housing by CSR Performance®. Designed with exceptional craftsmanship, this first-rate product ensures maximum results when it comes to keeping engine temperatures down. Made...
      High quality at an affordable priceExpertly made from premium materials
      $130.70 - $156.80
    • (0 reviews)
      # 911880094
      Mercury Marquis 1978, High Performance Thermostat by Stewart Components®. To keep your engine cool and improve your vehicle's performance, this product is just the right solution. Manufactured from high-quality materials, it will surely...
      High quality at an affordable priceExpertly made from premium materials
      $33.18
    • (0 reviews)
      # 911910945
      Mercury Marquis 1978, Thermostat Housing Gasket by MotoRad®. MotoRad seals and gaskets are made from high quality materials suitable for resistance to high temperatures and engine coolant to maintain a superior, long lasting seal.
      Made of High quality materialsResistance to high tempertures
      $0.26


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