1978 Mercury Grand Marquis Belts and Hoses

Essential 1978 Mercury Grand Marquis Belts and Hoses

MacKay – Molded Radiator Hose (Part No.G2000368499MKY)

Molded Radiator Hose

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$17.48
MacKay utilizes leading edge rubber technology and compounds, supported by in-house processes from rubber mixing to final product. This ensures hoses are made to the strict specifications required for the advanced motor vehicles of the 21st century. In vehicles of today, a hose has to be designed to withstand the stresses of modern, more compact but powerful engines that run hotter and at a higher pressure. Other factors include smaller engine compartments with poor heat dissipation, aggressive coolant additives, and stray (electrochemical) current that may be conducting through the cooling system. In short, the smaller but more powerful engines of today work a lot harder than the larger engines that were standard before. More heat is generated, higher burst pressures are required in cooling system components, and hoses have to be made tougher to withstand these demands. MacKay’s research and development chemists have developed new rubber formulations and manufacturing processes that ensure MacKay hoses meet the greater wear and heat demands created by modern engines. Rubber compounds used in automotive hoses today are predominantly synthetic rubber formulation. All MacKay coolant hoses are made from EPDM compounds that are highly resistant to ozone attack. Hoses made from some other rubber compounds may be subject to ozone deterioration.

Product Features:
  • Excellent resistance to high temperatures
  • Resists chemical attack (oils, fuels etc.)
  • Excellent Ozone resistance
  • Good resistance to abrasion
  • High resistance to vibration
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Gates – Premium Molded Coolant Hose (Part No.22392)

Premium Molded Coolant Hose

from

$48.49
Gates Molded Coolant Hose is manufactured to fit specific applications. Similar to OEM specifications. Approved for marine applications.

Product Features:
  • Specifically-engineered materials resist collapse under vacuum
  • Engineered to resist electrochemical degradation, the leading cause of hose failure
  • Pre-shaped to fit and to ensure perfectly sealed conditions
  • EPDM tube: synthetic fiber knit reinforcement: heat-, ozone- and chemical coolant-resistant EPDM cover
  • Meets requirements of SAE 20R4, class D2 and DIN 73411, class A (except for tolerances)
  • Temperature Range: -40 Deg. F to +257 Deg. F (-40 Deg. C to +125 Deg. C)
  • Note: Gates recommends replacing hose clamps each time a new coolant hose is installed
  • Caution: Do not use for fuel or oil transfer applications
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Dayco – Molded Heater Hose; EPDM Rubber, 19/32 Inch Diameter, 9 Inch Length (Part No.86099)

Molded Heater Hose; EPDM Rubber, 19/32 Inch Diameter, 9 Inch Length

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$31.99
Providing reliable service in applications requiring molded hoses in small diameters, the Dayco small I.D. heater hose is designed to replace OEM coolant hoses. Made with the same bends and routing as the original assembly, this molded hose is meant to fit the vehicle precisely. The knitted reinforcement and synthetic EPDM construction provide high-strength performance and resistance to detrimental environmental elements, coolants and temperature variations of -40°F (-40°C) to +257°F (+125°C) and the “quick connect” end allows for fast, convenient installation.

Product Features:
  • Meets the requirements of SAE J20R3, Class D-1
  • Designed to meet Type EC electro-chemical requirements as specified in SAE J1684, which prevents inner tube deterioration caused by the build-up of static electric charges
  • Engineered as an OEM replacement
  • The knitted polyester reinforcement provides high burst strength and resists degradation from temperature extremes and moisture
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Dayco – Molded Heater Hose; EPDM Rubber, 3/4 Inch Diameter, 14 Inch Length (Part No.88434)

Molded Heater Hose; EPDM Rubber, 3/4 Inch Diameter, 14 Inch Length

from

$18.79
Providing reliable service in applications requiring molded hoses in small diameters, the Dayco small I.D. heater hose is designed to replace OEM coolant hoses. Made with the same bends and routing as the original assembly, this molded hose is meant to fit the vehicle precisely. The knitted reinforcement and synthetic EPDM construction provide high-strength performance and resistance to detrimental environmental elements, coolants and temperature variations of -40°F (-40°C) to +257°F (+125°C) and the “quick connect” end allows for fast, convenient installation.

Product Features:
  • Meets the requirements of SAE J20R3, Class D-1
  • Designed to meet Type EC electro-chemical requirements as specified in SAE J1684, which prevents inner tube deterioration caused by the build-up of static electric charges
  • Engineered as an OEM replacement
  • The knitted polyester reinforcement provides high burst strength and resists degradation from temperature extremes and moisture
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Dayco – Flex Radiator Hoses; EPDM Rubber, 17.81 Inch Long, 1.5 Inch Inner Dia. (Part No.81490)

Flex Radiator Hoses; EPDM Rubber, 17.81 Inch Long, 1.5 Inch Inner Dia.

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$24.49
The Dayco flex radiator hose replaces straight or molded radiator hoses on a wide range of engine applications. Precision molded in standard lengths, it features a knitted reinforcement and synthetic EPDM construction. This hose is designed to prevent spl

Product Features:
  • Designed to meet OE specifications
  • Not suitable for oil or heat transfer
  • Meets SAE J20R4, Class D-2 requirements for improved service hoses
  • This hose is designed to prevent splitting, ballooning, and elongation
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Gates – Premium Modular Coolant Hose (Part No.22787)

Premium Modular Coolant Hose

from

$52.99
Modular coolant hoses are on many of today’s vehicles and are much more complex than the standard molded hoses of the past. Modular coolant hoses are hose assemblies with one or more components built into the hose. Some examples of these components include hose branches, quick connectors, valves, sensors, bleeders and flow restrictors. Manufactured identical or equivalent to the OE hose, modular coolant hoses will keep your vehicle’s cooling system running properly and efficiently for years to come.

Product Features:
  • Specifically-engineered materials resist collapse under vacuum
  • Engineered to resist electrochemical degradation ┐ the leading cause of hose failure
  • EPDM tube: synthetic fiber knit reinforcement, heat-, ozone- and chemical coolant-resistant EPDM cover
  • Manufactured with OEM-exact hose components (quick connects, branch connectors/tees, sensors, etc.)
  • Meets SAE 20R3 EC Class D1 under 25mm (1 in.) ID, SAE 20R4 EC Class D1 for 25mm (1 in.) ID and over
  • Temperature Range: -40 Deg. F to +257 Deg. F (-40 Deg. C to +125 Deg. C)
  • Note: Gates recommends replacing clamps each time a new coolant hose is installed
  • Caution: Do not use for fuel or oil transfer applications
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Gates – Emission Control Duct Hose (Part No.28095)

Emission Control Duct Hose

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$12.99
Product Features:
  • Aluminum polyester construction for economy
  • Black fiberglass aluminum for greater strength and durability
  • Completely +exible and easily bent, yet retains shape after forming
  • Resists heat, cold, oil and water
  • Temperature Range: -40 Deg. F to 400 Deg. F (-40 Deg. C to +204 Deg. C)
  • Temperature rating: -40 Deg. F to 400 Deg. F (-40 Deg. C to +204 Deg. C).
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Dorman – Help – Carburetor Pre-Heater Hose – 2 In. X 18 In. – Aluminum (Part No.96024)

Carburetor Pre-Heater Hose - 2 In. X 18 In. - Aluminum

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$5.99
This HVAC control duct hose is designed to match the fit and function of the original hose on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this HVAC control duct hose is designed to match the fit and function of the original hose on specified vehicles
  • Restores functionality – reliable replacement for an original hose that has failed due to heat or vibration
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Dayco – Flex Radiator Hoses; EPDM Rubber, 3 Inch Long, 1.5 Inch Inner Dia. (Part No.81221)

Flex Radiator Hoses; EPDM Rubber, 3 Inch Long, 1.5 Inch Inner Dia.

from

$28.99
The Dayco flex radiator hose replaces straight or molded radiator hoses on a wide range of engine applications. Precision molded in standard lengths, it features a knitted reinforcement and synthetic EPDM construction. This hose is designed to prevent spl

Product Features:
  • Designed to meet OE specifications
  • Not suitable for oil or heat transfer
  • Meets SAE J20R4, Class D-2 requirements for improved service hoses
  • This hose is designed to prevent splitting, ballooning, and elongation
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Dayco – Curved Radiator Hoses: EPDM Rubber, Standard Duty, 19.50" Long, 1.44" Diameter (Part No.E71514)

Curved Radiator Hoses: EPDM Rubber, Standard Duty, 19.50" Long, 1.44" Diameter

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$18.29
The Dayco curved radiator hose features knitted reinforcement, a protective sleeve and a synthetic EPDM rubber construction for high-strength performance, protection against abrasion and resistance to oil, mud, salt, road debris, ozone and coolants. It can also withstand temperature variations of -40 Deg. F (-40 Deg. C) to +257 Deg. F (+125 Deg. C). The inner base tube is reinforced with knitted rayon for maximum strength and burst resistance for the life of the hose.

Product Features:
  • Meets SAE J20R4, Class D-1 requirements
  • Meets Type EC electro-chemical requirements as specified in SAE J1684, which prevents inner tube deterioration caused by the build-up of static electric charges
  • Provides excellent protection against external elements
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Dayco – V-Belt Idler/Tensioner Pulley; Steel, 94mm Dia., 16.4mm Width, Grooves (Part No.89020)

V-Belt Idler/Tensioner Pulley; Steel, 94mm Dia., 16.4mm Width, Grooves

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$24.99
Dayco idler/tensioner pulleys are built with smoother surfaces and tighter dimensional tolerances, which translates to less vibration and longer belt life. In addition to stamped, forged steel and powdered metal pulleys, Dayco also designs ultra-strong pl

Product Features:
  • Designed for the majority of automotive vehicle applications on the road today
  • High-quality materials help resist wear and improve belt life
  • Features premium lubricated bearings to extend service life
  • Meets or exceeds OE quality
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ContiTech – Multi Rib (Serpentine) Belt (Part No.W1000861605CON)

Multi Rib (Serpentine) Belt

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$53.95
ContiTech Serpentine Belts come in a wide range of sizes and are designed to be oil-resistant and temperature-stable from -22F to 176F (-30C to 80C). ContiTech Serpentine Belts deliver 98% power efficiency. While a lower profile design easily handles higher engine revs, reducing noise and providing cooler running temperatures. High performance construction features include polychloroprene rubber cover and body, polyester fiber tensile members, and a ribbed belt design. Installation Note: The manufacturer recommends checking and/or replacing idler and tensioner bearings when replacing the serpentine belts

Product Features:
  • OE-Equivalent.
  • Direct fit for easy installation.
  • Resistant against wear, oil and heat.
  • Temperature-stable from -22F to 176F (30C to 80C).
  • Delivers over 98% power efficiency.
  • High performance construction.
  • Polychloroprene rubber cover and body.
  • Polyester fiber tensile members and a ribbed belt design.
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Dayco – Bottom Cog V-Belt; 41.5 Inch Long, Exact Fit Premium Quality (Part No.15415)

Bottom Cog V-Belt; 41.5 Inch Long, Exact Fit Premium Quality

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$16.79
Dayco has combined raw-edge construction and a smooth top to ensure high performance on vehicles and drives that utilize V-belts. The Dayco high performance V-belt delivers more flexibility and increases airflow around the belt so it runs cooler and lasts longer. Three plies of neoprene impregnated fabric resist heat, oil and grease while a specially-formulated treatment of the polyester cord provides the strength, stability and reliability that are required for one of the most innovative, top-performing V-belts.

Product Features:
  •  Provides greater durability and flexibility – 35% stronger than all previous versions
  • Prevents electromechanical interference issues on modern vehicles
  •  Resists heat, oil and grease
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Driveworks – Automotive V-Belt (Part No.60017)

Automotive V-Belt

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$5.99
The Driveworks V-Belt is manufactured with top quality components to deliver the maximum power and performance on all passenger cars and light duty trucks in service today.

Product Features:
  • This belt is made with bottom cogs to provide the maximum flexibility and grip required on v-belt drives
  • Polyester cords provide extreme tension-holding capability for longer belt life
  • The raw edge belt design delivers the maximum gripping power
  • The highly engineered rubber compounds are resistant to under hood heat and ozone deterioration
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Dorman – Engine Oil Cooler Line (Part No.625-200)

Engine Oil Cooler Line

from

$49.99
This engine oil cooler hose assembly matches the fit and function of the original equipment components for reliable repair and restoration of proper oil circulation between the oil cooler and engine.

Product Features:
  • Ideal replacement – this engine oil cooler hose assembly is a direct replacement for the original hose assembly
  • Quality materials – this engine oil cooler hose assembly is made from corrosion-resistant materials to ensure the smooth transfer of oil from the engine to the cooler
  • Easy to install – no special tools required
  • Quality tested – rigorous quality control ensure this hose assembly conforms to product standards
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Dorman – Engine Oil Cooler Line (Part No.625-200HD)

Engine Oil Cooler Line

from

$66.99
This engine oil cooler hose assembly matches the fit and function of the original equipment components for reliable repair and restoration of proper oil circulation between the oil cooler and engine.

Product Features:
  • Ideal replacement – this engine oil cooler hose assembly is a direct replacement for the original hose assembly
  • Quality materials – this engine oil cooler hose assembly is made from corrosion-resistant materials to ensure the smooth transfer of oil from the engine to the cooler
  • Easy to install – no special tools required
  • Quality tested – rigorous quality control ensure this hose assembly conforms to product standards
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Imperial – 1/2" x 12′ Engine Oil Cooler Hose (Part No.240112)

1/2" x 12' Engine Oil Cooler Hose

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$48.49
1/2″ x 12′ engine oil cooler hose. Imperial engine hose is specifically designed for engine cooling applications.

Product Features:
  • Engine oil cooler hose
  • Size: 1/2″ x 12′
  • Designed for engine oil applications
  • 12′ hose length accommodates most applications
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Yukon Gear – Seal Puller Tool (Part No.56063)

Seal Puller Tool

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$57.99
Pinion and axle seal puller. No return.

Product Features:
  • Seal puller
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Dayco – Molded Heater Hose; EPDM Rubber, 5/8 Inch Diameter, 24 Inch Length (Part No.80404)

Molded Heater Hose; EPDM Rubber, 5/8 Inch Diameter, 24 Inch Length

from

$18.79
Providing reliable service in applications requiring molded hoses, the Dayco heater hose is designed to replace OEM coolant hoses. Made with the same bends and routing as the original assembly, this molded hose is meant to fit the vehicle precisely. The knitted reinforcement and synthetic EPDM construction provide high-strength performance and resistance to detrimental environmental elements, coolants and temperature variations of -40°F (-40°C) to +257°F (+125°C) and the “quick connect” end allows for fast, convenient installation.

Product Features:
  • Meets the requirements of SAE J20R3, Class D-1
  • Designed to meet Type EC electro-chemical requirements as specified in SAE J1684, which prevents inner tube deterioration caused by the build-up of static electric charges
  • Engineered as an OEM replacement
  • Meets Type EC electro-chemical requirements as specified in SAE J1684
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Gates – Safety Stripe« Standard Straight Heater Hose (Part No.28409)

Safety Stripe« Standard Straight Heater Hose

from

$2.49
Premium hose constructed for long service life.

Product Features:
  • Good resistance to high temperatures for extended periods of time, which prolongs service life
  • Meets SAE 20R3 Standard Wall Class D-2 requirements
  • Temperature Range: -40 Deg. F to +257 Deg. F (-40 Deg. C to +125 Deg. C)
  • Caution: Do not use for fuel or oil transfer applications
  • PLEASE NOTE: Item is priced and sold by the foot. See store for details.
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Dayco – Molded Heater Hose; EPDM Rubber, 3/4 Inch Diameter, 15 Inch Length (Part No.88351)

Molded Heater Hose; EPDM Rubber, 3/4 Inch Diameter, 15 Inch Length

from

$25.99
Providing reliable service in applications requiring molded hoses in small diameters, the Dayco small I.D. heater hose is designed to replace OEM coolant hoses. Made with the same bends and routing as the original assembly, this molded hose is meant to fit the vehicle precisely. The knitted reinforcement and synthetic EPDM construction provide high-strength performance and resistance to detrimental environmental elements, coolants and temperature variations of -40°F (-40°C) to +257°F (+125°C) and the “quick connect” end allows for fast, convenient installation.

Product Features:
  • Meets the requirements of SAE J20R3, Class D-1
  • Designed to meet Type EC electro-chemical requirements as specified in SAE J1684, which prevents inner tube deterioration caused by the build-up of static electric charges
  • Engineered as an OEM replacement
  • The knitted polyester reinforcement provides high burst strength and resists degradation from temperature extremes and moisture
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Dayco – Molded Heater Hose; EPDM Rubber, 5/8 Inch Diameter, 18 Inch Length (Part No.80402)

Molded Heater Hose; EPDM Rubber, 5/8 Inch Diameter, 18 Inch Length

from

$23.49
Providing reliable service in applications requiring molded hoses, the Dayco heater hose is designed to replace OEM coolant hoses. Made with the same bends and routing as the original assembly, this molded hose is meant to fit the vehicle precisely. The knitted reinforcement and synthetic EPDM construction provide high-strength performance and resistance to detrimental environmental elements, coolants and temperature variations of -40°F (-40°C) to +257°F (+125°C) and the “quick connect” end allows for fast, convenient installation.

Product Features:
  • Meets the requirements of SAE J20R3, Class D-1
  • Designed to meet Type EC electro-chemical requirements as specified in SAE J1684, which prevents inner tube deterioration caused by the build-up of static electric charges
  • Engineered as an OEM replacement
  • Meets Type EC electro-chemical requirements as specified in SAE J1684
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Gates – Straight Heater Hose: EPDM, Direct Fit, 0.75" Inside Diameter (Sold by foot) (Part No.28412)

Straight Heater Hose: EPDM, Direct Fit, 0.75" Inside Diameter (Sold by foot)

from

$3.99
Premium hose constructed for long service life.

Product Features:
  • Good resistance to high temperatures for extended periods of time, which prolongs service life
  • Meets SAE 20R3 Standard Wall Class D-2 requirements
  • Temperature Range: -40 Deg. F to +257 Deg. F (-40 Deg. C to +125 Deg. C)
  • CAUTION: Do not use for fuel or oil transfer applications
  • CAUTION: Do not use for fuel or oil transfer applications
  • PLEASE NOTE: Item is priced and sold by the foot. See store for details.
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Edelbrock – Fuel Bowl Inverted Flare Fuel Inlet Fitting #12415 (Part No.12415)

Fuel Bowl Inverted Flare Fuel Inlet Fitting #12415

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$20.99
Edelbrock part #12415 Fuel Bowl Inverted Flare Fitting is a 3/8″ inverted flare fuel inlet fitting. The fitting is designed for use with Holley 2300, 4150, 4150HP and 4160 (center hung floats only), 4500, 4500HP and Rochester Quadrajet applications up to

Product Features:
  • Brass Material
  • 3/8 in. Single Barb
  • 7/8-20 in. Male End
  • 5/8-18 in. Female Flare
  • With 3/8 in. Tube
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1978 Mercury Grand Marquis Belts and Hoses

You count on your 1978 Mercury Grand Marquis to run right. That means taking care of it with regular maintenance, necessary repairs, and the right parts. Advance Auto Parts can help with all of that thanks to our extensive inventory of trusted Belts and Hoses. With 71 Belts and Hoses ranging in price from $1.49 to $79.99, you’re sure to find everything you need for your 1978 Mercury Grand Marquis.

Brands matter. If you want to shop a specific Belts and Hoses brand, we stock 7 different brands like Dayco, Dorman, and Imperial. 1978 Mercury Grand Marquis Belts and Hoses start as low as $1.49!

One of the best ways to find top quality OEM or aftermarket Belts and Hoses is by asking professionals. Short of that, you can shop with confidence thanks to our 187 extensive product reviews on 1978 Mercury Grand Marquis Belts and Hoses. Some of the top-rated Belts and Hoses products we carry are Automotive V-Belt with 3.8 stars and Curved Radiator Hoses: EPDM Rubber, Standard Duty, 18.50" Long, 1.50" Diameter with 4.7 stars.

Did we mention you can order your Belts and Hoses from our online catalog and have them shipped right to your garage? Or, if you feel like seeing the parts first-hand, search for your nearest Advance Auto Parts location above and pick up in-store when you’re ready. Browse our full Belts and Hoses inventory for your 1978 Mercury Grand Marquis below to get started!

Top-Rated Belts and Hoses Brands For Your 1978 Mercury Grand Marquis

Trusted Belts and Hoses OEM and aftermarket product brands are what Advance Auto Parts specializes in. The brands we work with are sure to keep that 1978 Mercury Grand Marquis running right for years to come. In our inventory you’ll find brands like Dayco, Dorman, Imperial, and even more.

Popular Dorman – Help Belts and Hoses

You’ll find popular Dorman – Help brand products across Duct Hoses. All are waiting to get your 1978 Mercury Grand Marquis back on the road. Some of the top-rated Dorman – Help products in these categories are:

Top-Rated Dayco Belts and Hoses


If Dayco are what you’re looking for, our inventory holds plenty. We stock Dayco brand Belts and Hoses for your 1978 Mercury Grand Marquis, and some of our most reviewed Dayco parts include:

FAQs for 1978 Mercury Grand Marquis Belts and Hoses

What are the most purchased Belts and Hoses for the 1978 Mercury Grand Marquis?

Out of 71 Belts and Hoses for the 1978 Mercury Grand Marquis, the most popular in our inventory are:

What are the top-rated 1978 Mercury Grand Marquis Belts and Hoses?

Top-rated Belts and Hoses for your 1978 Mercury Grand Marquis based on customer reviews/ratings are:
Automotive V-Belt
from $5.29
(8)
Automotive V-Belt
“Perfect fit”
Curved Radiator Hoses: EPDM Rubber, Standard Duty, 18.50" Long, 1.50" Diameter
from $16.79
(6)
Curved Radiator Hoses: EPDM Rubber, Standard Duty, 18.50" Long, 1.50" Diameter
“Would not hesitate to purchase another when time comes.”
Curved Radiator Hoses: EPDM Rubber, Standard Duty, 21" Long, 1.50" Diameter
from $21.99
(5)
Curved Radiator Hoses: EPDM Rubber, Standard Duty, 21" Long, 1.50" Diameter
“Fit exactly like the old OEM part”