2004 Mercury Mountaineer Heater Hoses

Your 2004 Mercury Mountaineer might be the best vehicle you’ve ever owned. Or you may just be struggling to keep it highway-approved. No matter the situation, Advance Auto Parts has the Heater Hoses you desperately need.

We currently carry 25 Heater Hoses to choose from for your 2004 Mercury Mountaineer, and our inventory prices range from as little as $1.49 up to $78.48.

On top of low prices, Advance Auto Parts offers 4 different trusted brands of Heater Hoses for the 2004 Mercury Mountaineer. We only sell parts from trusted brands like Dayco so that you can find quality parts you can count on.

Don’t take our word for it – check out customer ratings and reviews to buy with confidence. We have 30 reviews on our Heater Hoses for the 2004 Mercury Mountaineer from previous customers.

Have parts delivered straight to your home, or find the nearest Advance Auto Parts store to check out our Heater Hoses stock in-person!

Heater Hoses for Your 2004 Mercury Mountaineer

Dayco – Molded Heater Hose; EPDM Rubber, 5/8 Inch Diameter, 5 Inch Length (Part No.87659)

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

from

$16.79
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 – Molded Heater Hose; EPDM Rubber, 5/8 Inch Diameter, 6 Inch Length (Part No.87730)

Molded Heater Hose; EPDM Rubber, 5/8 Inch Diameter, 6 Inch Length

from

$28.99
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
See More

Dayco – Curved Radiator Hoses: EPDM Rubber, Standard Duty, 28.5" Long, 1" Diameter (Part No.E72429)

Curved Radiator Hoses: EPDM Rubber, Standard Duty, 28.5" Long, 1" Diameter

from

$37.99
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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Dorman – Molded Heater Hose: Rubber (Part No.626-546)

Molded Heater Hose: Rubber

from

$10.79
This replacement HVAC heater hose assembly is engineered to match the fit and durability of the stock heater hose assembly on specified vehicles. It is designed to withstand extreme temperature changes to extend service life.

Product Features:
  • Ideal replacement – this HVAC heater hose assembly directly replaces the original heater hose on specified vehicle years, makes and models
  • Durable construction – this part is specifically designed to withstand extreme temperature changes and resist cracking and leaking
  • Cost-effective and reliable – offers original manufacturer quality at lower cost than getting replacement at dealer
  • Industry-leading design – professionally engineered by the aftermarket leader in heater hose assemblies
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Dayco – Molded Heater Hose; EPDM Rubber, 5/8 Inch Diameter, 16 1/2 Inch Length (Part No.87867)

Molded Heater Hose; EPDM Rubber, 5/8 Inch Diameter, 16 1/2 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
See More

Dayco – Molded Heater Hose; EPDM Rubber, 5/8 Inch Diameter, 6 1/2 Inch Length (Part No.87927)

Molded Heater Hose; EPDM Rubber, 5/8 Inch Diameter, 6 1/2 Inch Length

from

$24.99
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 fi

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
See More

Motorcraft – Heater Hose (Part No.R3030201689MTR)

Heater Hose

from

$29.95
The Motorcraft rubber goods line, including belts and hoses, combines quality materials and design excellence that promote product integrity and customer satisfaction. Manufactured with the right lengths and widths to replace original equipment (OE) hoses, they are the only hoses recommended by Ford Motor Company. Motorcraft hoses offer long-lasting quality – Ethylene-propylene diolefin monomer (EPDM) rubber used in most underhood hoses resists heat, oil, grease, antifreeze and all approved coolant additives.

Product Features:
  • Ethylene-propylene diolefin monomer (EPDM) rubber reinforced with single rayon-braid tube
  • Provides resistance to the damaging effects of coolants, antifreeze and additives
  • Stands up to high pressures
  • Resists deterioration from heat, aging, ozone and underhood chemicals
  • Recommended by Ford Motor Company
See More

Dayco – Molded Heater Hose; EPDM Rubber, 5/8 Inch Diameter, 19 Inch Length (Part No.87847)

Molded Heater Hose; EPDM Rubber, 5/8 Inch Diameter, 19 Inch Length

from

$33.49
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
See More

Dayco – Molded Heater Hose; EPDM Rubber, 5/8 Inch Diameter, 9 1/2 Inch Length (Part No.87731)

Molded Heater Hose; EPDM Rubber, 5/8 Inch Diameter, 9 1/2 Inch Length

from

$30.99
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
See More

Motorcraft – Heater Hose (Part No.R3030201696MTR)

Heater Hose

from

$78.48
The Motorcraft rubber goods line, including belts and hoses, combines quality materials and design excellence that promote product integrity and customer satisfaction. Manufactured with the right lengths and widths to replace original equipment (OE) hoses, they are the only hoses recommended by Ford Motor Company. Motorcraft hoses offer long-lasting quality – Ethylene-propylene diolefin monomer (EPDM) rubber used in most underhood hoses resists heat, oil, grease, antifreeze and all approved coolant additives.

Product Features:
  • Ethylene-propylene diolefin monomer (EPDM) rubber reinforced with single rayon-braid tube
  • Provides resistance to the damaging effects of coolants, antifreeze and additives
  • Stands up to high pressures
  • Resists deterioration from heat, aging, ozone and underhood chemicals
  • Recommended by Ford Motor Company
See More

Motorcraft – Motorcraft Heater Hose (Part No.R3030201686MTR)

Motorcraft Heater Hose

from

$78.19
The Motorcraft rubber goods line, including belts and hoses, combines quality materials and design excellence that promote product integrity and customer satisfaction. Manufactured with the right lengths and widths to replace original equipment (OE) hoses, they are the only hoses recommended by Ford Motor Company. Motorcraft hoses offer long-lasting quality – Ethylene-propylene diolefin monomer (EPDM) rubber used in most underhood hoses resists heat, oil, grease, antifreeze and all approved coolant additives.

Product Features:
  • Ethylene-propylene diolefin monomer (EPDM) rubber reinforced with single rayon-braid tube
  • Provides resistance to the damaging effects of coolants, antifreeze and additives
  • Stands up to high pressures
  • Resists deterioration from heat, aging, ozone and underhood chemicals
  • Recommended by Ford Motor Company
See More

Gates – Heater Hose (Part No.R3030201701GAT)

Heater Hose

from

$50.44
Heater Hose

Gates – Premium Molded Heater Hose (Part No.19103)

Premium Molded Heater Hose

from

$43.49
Gates Small I.D. Molded Coolant Hose is factory-molded, OEM style hose to fit today’s smaller, tighter-fitting engine compartments. Can be used for coolant, water and air applications. Approved for marine applications.

Product Features:
  • Has all the quality features of Gates molded coolant hose and similar to OEM specifications
  • Engineered to resist electrochemical degradation ┐ the leading cause of hose failure
  • EPDM tube, synthetic fiber knit reinforcement, EPDM cover
  • Meets SAE 20R3 Type EC Class D-1 and D-2 specifications
  • Temperature Range: -40 Deg. F to 275 Deg. F (-40 Deg. C -135 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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Gates – Premium Molded Heater Hose (Part No.18937)

Premium Molded Heater Hose

from

$38.49
Gates Small I.D. Molded Coolant Hose is factory-molded, OEM style hose to fit today’s smaller, tighter-fitting engine compartments. Can be used for coolant, water and air applications. Approved for marine applications.

Product Features:
  • Has all the quality features of Gates molded coolant hose and similar to OEM specifications
  • Engineered to resist electrochemical degradation ┐ the leading cause of hose failure
  • EPDM tube, synthetic fiber knit reinforcement, EPDM cover
  • Meets SAE 20R3 Type EC Class D-1 and D-2 specifications
  • Temperature Range: -40 Deg. F to 275 Deg. F (-40 Deg. C -135 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
See More

Motorcraft – Motorcraft Heater Hose (Part No.R3030201700MTR)

Motorcraft Heater Hose

from

$29.98
The Motorcraft rubber goods line, including belts and hoses, combines quality materials and design excellence that promote product integrity and customer satisfaction. Manufactured with the right lengths and widths to replace original equipment (OE) hoses, they are the only hoses recommended by Ford Motor Company. Motorcraft hoses offer long-lasting quality – Ethylene-propylene diolefin monomer (EPDM) rubber used in most underhood hoses resists heat, oil, grease, antifreeze and all approved coolant additives.

Product Features:
  • Ethylene-propylene diolefin monomer (EPDM) rubber reinforced with single rayon-braid tube
  • Provides resistance to the damaging effects of coolants, antifreeze and additives
  • Stands up to high pressures
  • Resists deterioration from heat, aging, ozone and underhood chemicals
  • Recommended by Ford Motor Company
See More

Motorcraft – Heater Hose (Part No.R3030201690MTR)

Heater Hose

from

$25.79
Heater Hose

Gates – Heater Hose (Part No.R3030201699GAT)

Heater Hose

from

$23.12
Heater Hose

Gates – Premium Molded Coolant Hose (Part No.21738)

Premium Molded Coolant Hose

from

$21.29
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
See More

Gates – Premium Molded Heater Hose (Part No.18453)

Premium Molded Heater Hose

from

$20.99
Gates Small I.D. Molded Coolant Hose is factory-molded, OEM style hose to fit today’s smaller, tighter-fitting engine compartments. Can be used for coolant, water and air applications. Approved for marine applications.

Product Features:
  • Has all the quality features of Gates molded coolant hose and similar to OEM specifications
  • Engineered to resist electrochemical degradation ┐ the leading cause of hose failure
  • EPDM tube, synthetic fiber knit reinforcement, EPDM cover
  • Meets SAE 20R3 Type EC Class D-1 and D-2 specifications
  • Temperature Range: -40 Deg. F to 275 Deg. F (-40 Deg. C -135 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
See More

Dayco – Molded Heater Hose; EPDM Rubber, 5/8 Inch Diameter, 18 Inch Length (Part No.87801)

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

from

$20.29
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
See More

Gates – Molded 90 Degree Heater Hose (Part No.28466)

Molded 90 Degree Heater Hose

from

$19.29
Specially designed for difficult heater hose applications requiring sharp 90 degree bends in the hose. Eliminates the need for extensive inventory of OE type curved heater hose. Just 22 sizes handle thousands of applications.

Product Features:
  • Resists electrochemical degradation and water permeation
  • Use with heater hose connectors and bulk heater hose to create custom assemblies
  • Compatible for coolant, air and water applications
  • EPDM tube and cover, synthetic fiber reinforcement
  • SAE 20R3 EC Class D1, SAE 20R4 EC Class D1
  • Temperature Range: -40 Deg. F to +275 Deg. F (-40 Deg. C to +135 Deg. C)
  • Caution: Do not use for fuel or oil transfer applications
See More

Gates – Heater Hose Set (Part No.R3031681180GAT)

Heater Hose Set

from

$16.78
Heater Hose Set

Dayco – Heater Hose (Part No.R3030162839DAY)

Heater Hose

from

$15.03
Heater Hose

Dayco – Molded Small ID Heater Hose (Part No.R3030359234DAY)

Molded Small ID Heater Hose

from

$13.83
Designed to replace original equipment manufacturer hose, Dayco Molded Heater Hose are built with knitted reinforcement and EPDM construction which provides high strength and resistance to oil, mud, salt, road debris, ozone, coolants, and temperature variations of -40F (-40C) to +257F (+125C) that are required for OEM hose replacements. The inner base tube is reinforced with knitted rayon for maximum strength and burst resistance for the life of the hose. The Dayco Molded Radiator and Bypass Hose has a convenient plastic hang strap for quick and easy merchandising. In addition to meeting SAE J20R4, Class D-1 requirements, this hose is now designed to meet Type EC electro- chemical requirements as specified in SAE J1684.

Product Features:
  • Made with synthetic EPDM rubber compounds that provide resistance to deterioration from ozone, coolants, and temperature variations of -40F (-40C) to +257F (+125C)
  • The inner base tube is reinforced with knitted rayon for maximum strength and burst resistance for the life of the hose
  • Meets SAE J20R4, Class D-1 requirements for improved service hose
  • Meets Type EC electro-chemical requirements as specified in SAE J1684; which eliminates premature deterioration of the inner tube caused by the build up of static electric charges
  • Limited Three Year Warranty
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Gates – Straight Heater Hose: EPDM, Direct Fit, 0.625" Inside Diameter (Sold by foot) (Part No.28411)

Straight Heater Hose: EPDM, Direct Fit, 0.625" Inside Diameter (Sold by foot)

from

$1.49
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
  • 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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FAQs for 2004 Mercury Mountaineer Heater Hoses

What are the most popular Heater Hoses for the 2004 Mercury Mountaineer?

With 4 brands you can trust, our most popular Heater Hoses for the 2004 Mercury Mountaineer parts are:
Molded Heater Hose; EPDM Rubber, 5/8 Inch Diameter, 16 1/2 Inch Length
from $18.79
This product is not rated
Molded Heater Hose; EPDM Rubber, 5/8 Inch Diameter, 16 1/2 Inch Length
Heater Hoses

What are the best aftermarket Heater Hoses for the 2004 Mercury Mountaineer?

See what past customers had to say about our highest-rated Heater Hoses for the 2004 Mercury Mountaineer:
Molded Heater Hose: Rubber
from $10.79
(1)
Molded Heater Hose: Rubber
“WOW great hose”