Mercury Mountaineer Heater Hoses

Your One-Stop Shop For Trusted Mercury Mountaineer Heater Hoses

If you’re in search of Mercury Mountaineer Heater Hoses aftermarket or OEM parts, consider your search over! Advance Auto Parts carries 23 Heater Hoses from top brands with prices ranging from $0.99 to $132.99.

Beyond great prices, we stock trusted brands manufacturing all types of Heater Hoses for your Mercury Mountaineer.

And don’t forget to read customer reviews across all Heater Hoses categories in our catalog. Buy with confidence by leveraging past customer experiences of our aftermarket and OEM parts.

At Advance Auto Parts, we don’t think top quality Heater Hoses have to cost top dollar, and we prove it. Browse our top Mercury Mountaineer Heater Hoses below, order online to ship to your home, or head into your nearest Advance Auto Parts location to get started.

Essential Mercury Mountaineer Heater Hoses

Dorman – Coolant Fitting (Part No.626-571)

Coolant Fitting

from

$14.99
Made of quality materials, this HVAC heater hose connector matches the fit and function of an original equipment connector to restore leak-free performance.

Product Features:
  • Quality replacement – this heater hose connector matches the fit and function of the original equipment connector
  • Durable construction – this heater hose connector is made of quality materials for a precise fit and leak-free durability
  • Cost-effective solution – offers original equipment quality at competitive price
  • Performance tested – this connector has been rigorously pressure tested to ensure reliable performance
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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
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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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Dorman – Engine Heater Hose Assembly (OE Fix) (Part No.626-551)

Engine Heater Hose Assembly (OE Fix)

from

$132.99
Original equipment HVAC heater hose assemblies often fail due to cracks in the plastic Y-connector. This Dorman OE FIX replacement features an upgraded aluminum Y-connector to prevent similar failures in the future.

Product Features:
  • Upgraded material – this replacement engine heater hose assembly features aluminum Y-connectors for added durability
  • Application specific – designed to match the original fit and function of heater hoses on certain vehicle years, makes and models
  • Convenient replacement – replace only the damaged coolant collector, not the entire hose assembly
  • Quality engineering – designed in the United States and backed by decades of automotive aftermarket experience
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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
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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

$20.49
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

Dayco – Molded Heater Hose; EPDM Rubber, 5/8 Inch Diameter, 10 1/2 Inch Length (Part No.87725)

Molded Heater Hose; EPDM Rubber, 5/8 Inch Diameter, 10 1/2 Inch Length

from

$15.29
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

Dayco – Curved Radiator Hoses: EPDM Rubber, Standard Duty, 5" Long, .63" Diameter (Part No.A71877)

Curved Radiator Hoses: EPDM Rubber, Standard Duty, 5" Long, .63" Diameter

from

$26.99
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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Dayco – Straight Heater Hose; EPDM Rubber, 5/8 Inch Diameter (sold by foot) (Part No.80271)

Straight Heater Hose; EPDM Rubber, 5/8 Inch Diameter (sold by foot)

from

$1.99
Specifically designed to carry the heated coolant from the engine block to the heater core under the dashboard and return it to the engine, this Dayco Standard Heater Hose is constructed using all EPDM compounds and spiral reinforcement for high burst strength and excellent heat resistance. Made for general service on light trucks and passenger cars, this hose is similar to SAE 20R3, Class D-2 and has a temperature rating of -40 Degree F (-40 Degree C) to +257 Degree F (+125 Degree C). This Dayco Standard Heater Hose is compatible with all common coolant and coolant additives. Note: This hose is NOT suitable for fuel or oil transfer.

Product Features:
  • Specifically designed to be compatible with all common coolants and coolant additives
  • Constructed using all EPDM compounds and spiral reinforcements
  • Similar to SAE 20R3, Class D-2
  • Has a high burst strength and excellent heat resistance of -40 Degree F (-40 Degree C) to +257 Degree F (+125 Degree C)
  • PLEASE NOTE: Item is sold and priced by the foot. See store for details.
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Gates – Safety Stripe Standard Straight Heater Hose (Sold by foot) (Part No.28407)

Safety Stripe Standard Straight Heater Hose (Sold by foot)

from

$0.99
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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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
See More

Dayco – Molded Heater Hose; EPDM Rubber, 5/8 Inch Diameter, 12 1/4 Inch Length (Part No.87668)

Molded Heater Hose; EPDM Rubber, 5/8 Inch Diameter, 12 1/4 Inch Length

from

$20.99
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 – 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 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 -40øF (-40øC) to +257øF (+125øC) 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, 8 Inch Length (Part No.87675)

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

from

$29.99
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 – Molded Heater Hose; EPDM Rubber, 5/8 Inch Diameter, 10 Inch Length (Part No.87633)

Molded Heater Hose; EPDM Rubber, 5/8 Inch Diameter, 10 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
See More

Gates – Premium Molded Coolant Hose (Part No.22038)

Premium Molded Coolant Hose

from

$12.99
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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Gates – Premium Molded Heater Hose (Part No.18937)

Premium Molded Heater Hose

from

$47.99
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:
  • It has all the quality features of Gates molded coolant hose and is similar to OEM specifications
  • Designed to withstand electrochemical degradation, the leading cause of hose failure
  • EPDM tube, synthetic fiber reinforcement, EPDM cover
  • Meets SAE 20R3 Type EC Class D-1 and D-2 specifications
  • Temperature range -40 degrees F to +275 degrees F (-40 degrees C -135 degrees C)
  • Note: Gates recommends replacing clamps and connectors each time a new cooling hose is installed.
  • Caution: Do not use for fuel or oil transportation applications.
See More

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

$19.99
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

Gates – Premium Molded Coolant Hose (Part No.20662)

Premium Molded Coolant Hose

from

$21.99
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

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

Molded Heater Hose: Rubber

from

$12.99
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
See More

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

Premium Molded Heater Hose

from

$54.99
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
  • Designed to withstand electrochemical degradation, the leading cause of hose failure
  • EPDM tube, synthetic fiber reinforcement, EPDM cover
  • Meets SAE 20R3 Type EC Class D-1 and D-2 specifications
  • Temperature range -40 degrees F to +275 degrees F (-40 degrees C -135 degrees C)
  • Note: Gates recommends replacing clamps and connectors each time a new radiator hose is installed.
  • Caution: Do not use for fuel or oil transportation applications.
See More

Dorman – Molded Heater Hose: Rubber/Plastic (Part No.626-522)

Molded Heater Hose: Rubber/Plastic

from

$90.99
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
See More

Heater Hoses Brands You Can Trust For Your Mercury Mountaineer

3 trusted brands of Heater Hoses line our shelves, ready to help keep your Mercury Mountaineer running smooth. Below are some of the most popular brands and their top Heater Hoses offerings:

Top Mercury Mountaineer Heater Hoses from Dayco

Your Mercury Mountaineer will be purring again thanks to Dayco brand Heater Hoses available for online order or in-store pick up. Popular Dayco parts include:

Most Purchased Mercury Mountaineer Heater Hoses from Dayco

When you buy the most frequently purchased Dayco brand Heater Hoses, you can be confident it will be the right part for your Mercury Mountaineer. Here are the Dayco Heater Hoses Advanced Auto customers buy the most:
Molded Heater Hose: Rubber/Plastic
from $90.99
(4)
Molded Heater Hose: Rubber/Plastic
Heater Hoses
Engine Heater Hose Assembly (OE Fix)
from $132.99
(2)
Engine Heater Hose Assembly (OE Fix)
Heater Hoses

FAQs for Mercury Mountaineer Heater Hoses

What are the most purchased Heater Hoses for the Mercury Mountaineer?

Out of 23 Heater Hoses for the Mercury Mountaineer, the most popular in our inventory are:
Straight Heater Hose; EPDM Rubber, 5/8 Inch Diameter (sold by foot)
from $1.99
This product is not rated
Straight Heater Hose; EPDM Rubber, 5/8 Inch Diameter (sold by foot)
Heater Hoses
Molded Heater Hose: Rubber/Plastic
from $90.99
(4)
Molded Heater Hose: Rubber/Plastic
Heater Hoses
Safety Stripe Standard Straight Heater Hose (Sold by foot)
from $0.99
This product is not rated
Safety Stripe Standard Straight Heater Hose (Sold by foot)
Heater Hoses

What are the top-rated Mercury Mountaineer Heater Hoses?

Top-rated Heater Hoses for your Mercury Mountaineer based on customer reviews/ratings are:
Engine Heater Hose Assembly (OE Fix)
from $132.99
(2)
Engine Heater Hose Assembly (OE Fix)
“Good quality and easy to install. unfortunately the lower hose was the wrong size (too big). Had to go to the auto parts store and get a replacemen”
Molded Heater Hose: Rubber
from $12.99
(1)
Molded Heater Hose: Rubber
“WOW great hose”