Mack RM Lower Radiator Hoses

Your Mack RM will be happy to know that the search for the right Lower Radiator Hoses you’ve been looking for is over! Advance Auto Parts has 3 different Lower Radiator Hoses for your vehicle, ready for shipping or in-store pick up. The best part is, our Mack RM Lower Radiator Hoses start from as little as $2.99.

When it comes to your Mack RM, you want parts and products from only trusted brands. Here at Advance Auto Parts, we work with only top reliable Lower Radiator Hoses brands so you can shop with complete confidence. Some of our top Lower Radiator Hoses brands are Dayco and Gates. We’re sure you will get the right product to keep that RM running for a long time.

Shop online, find the best price on the right product, and have it shipped right to your door. If you prefer to shop in person for the right Lower Radiator Hoses for your RM, visit one of our local Advance Auto Parts locations and you’ll be back on the road in no time!

Compare 23 Mack Lower Radiator Hoses

Dayco – Curved Radiator Hoses: EPDM Rubber, Standard Duty, 13.25" Long, 1.75" Diameter (Part No.C70218)

Curved Radiator Hoses: EPDM Rubber, Standard Duty, 13.25" Long, 1.75" Diameter

from

$12.79
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 – Curved Radiator Hoses: EPDM Rubber, Standard Duty, 5" Long, 2" Diameter (Part No.B71569)

Curved Radiator Hoses: EPDM Rubber, Standard Duty, 5" Long, 2" Diameter

from

$9.49
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 – Curved Radiator Hoses: EPDM Rubber, Standard Duty, 17" Long, 1.75" Diameter (Part No.D70559)

Curved Radiator Hoses: EPDM Rubber, Standard Duty, 17" Long, 1.75" Diameter

from

$16.49
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 – Curved Radiator Hoses: EPDM Rubber, Standard Duty, 15" Long, 2" Diameter (Part No.C70688)

Curved Radiator Hoses: EPDM Rubber, Standard Duty, 15" Long, 2" Diameter

from

$15.79
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 – Curved Radiator Hoses: EPDM Rubber, Standard Duty, 22.50" Long, 2.25" Diameter (Part No.E70921)

Curved Radiator Hoses: EPDM Rubber, Standard Duty, 22.50" Long, 2.25" Diameter

from

$53.99
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 – Curved Radiator Hoses: EPDM Rubber, Standard Duty, 10" Long, 2.50" Diameter (Part No.C71813)

Curved Radiator Hoses: EPDM Rubber, Standard Duty, 10" Long, 2.50" Diameter

from

$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
See More

Gates – Molded 90 Degree Silicone Coolant Hose (Part No.28212)

Molded 90 Degree Silicone Coolant Hose

from

$148.99
Newer heavy-duty engines with advanced emissions systems (from 2007 to current model year) produce higher under-hood temperatures, requiring the use of silicone coolant hose. In these new low engine-air-flow and high-heat conditions, Gates Silicone Coolant Hose is the perfect product.

Product Features:
  • Premium 4-ply construction
  • High-heat resistance material meets or exceeds OE specifications
  • Multiple layers of first grade silicone material
  • Industry standard blue cover and orange tube for easy identification
  • Polyester knit reinforcement, unaffected by permeation of coolants and heat
  • Extra thick and resilient tube prevents cold water leaks and hardening under effect of heat
  • High-grade silicone cover resists coolants, ozone, weathering, sunlight and extreme ambient temperatures
  • Exceeds requirements of SAE J20R1, Class A
  • Temperature Range: -65 Deg. F to +350 Deg. F (-54 Deg. C to +177 Deg. C)
  • Gates also offers application-specific molded silicone coolant hose for exact dimensional specifications
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Gates – Molded Coolant Hose (Part No.23563)

Molded Coolant Hose

from

$113.99
Gates Molded Coolant Hose is manufactured to fit specific applications. Similar to OEM specifications. Approved for marine applications.

Product Features:
  • Heat and ozone resistant cover.
  • Engineered to resist electrochemical degradation – the leading cause of hose failure.
  • Re-engineered materials resist vacuum collapse. This reduces the need for internal springs in many applications.
  • Meets SAE 20R4 and 20R3 Type EC Class D-1 and D-2 specifications.
  • Temperature Rating: -40° F to 275° F (-40° C to 135° C) in coolant hose applications.
  • Note: Gates recommends replacing standard worm drive and spring loaded clamps with Gates PowerGrip(R) SB Clamps each time a new coolant hose is installed.
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Gates – Molded Heater Hose: EPDM, Steel, Direct Fit, 2.5" Inside Diameter (Part No.26532)

Molded Heater Hose: EPDM, Steel, Direct Fit, 2.5" Inside Diameter

from

$83.99
Product Features:
  • Engineered to resist electrochemical degradation, the leading cause of hose failure
  • Built-in steel spiral wire allows for medium sized curves without kinking or collapsing
  • EPDM tube and Neoprene cover for extended service life
  • Polyester fabric-ply reinforcement vulcanizes into shape without unnecessary strain on connections
  • Resistant to heat, oil and ozone
  • Performs to SAE 20R5 Type EC Class D-2 specifications
  • 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.
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Gates – Premium Molded Coolant Hose (Part No.23564)

Premium Molded Coolant Hose

from

$82.99
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 Coolant Hose (Part No.21892)

Premium Molded Coolant Hose

from

$77.99
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

Gates – Premium Molded Coolant Hose (Part No.20731)

Premium Molded Coolant Hose

from

$70.99
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

Dayco – Flex Radiator Hoses; Neoprene, Heavy Duty, 24 Inch Long, 2 Inch Inner Diameter (Part No.82111GL)

Flex Radiator Hoses; Neoprene, Heavy Duty, 24 Inch Long, 2 Inch Inner Diameter

from

$58.99
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 splitting, ballooning and elongation as well as resist ozone and other detrimental environmental elements, coolants and temperature variations of -40 Deg. F (-40 Deg. C) to +257 Deg. F (+125 Deg. C). With corrugations that provide excellent hose flexibility without flattening or collapsing, the Dayco flex radiator hose also features a helical steel coil spring for increased flexibility.

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
See More

Gates – Molded Heater Hose: EPDM, Steel, Direct Fit, 2.25" Inside Diameter (Part No.26522)

Molded Heater Hose: EPDM, Steel, Direct Fit, 2.25" Inside Diameter

from

$55.99
Product Features:
  • Engineered to resist electrochemical degradation, the leading cause of hose failure
  • Built-in steel spiral wire allows for medium sized curves without kinking or collapsing
  • EPDM tube and Neoprene cover for extended service life
  • Polyester fabric-ply reinforcement vulcanizes into shape without unnecessary strain on connections
  • Resistant to heat, oil and ozone
  • Performs to SAE 20R5 Type EC Class D-2 specifications
  • 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.
See More

Gates – Green Stripe« Heavy-Duty Vulco-Flex« Coolant Hose (Part No.26512)

Green Stripe« Heavy-Duty Vulco-Flex« Coolant Hose

from

$48.99
Heavy-duty flexible hose designed to replace straight or curved coolant hoses. The benefit is maximum coverage with minimum inventory. Hose inside diameter remains constant from end to end. No convolutions inside hose so tube is smooth, allowing free coolant flow. Approved for marine applications.

Product Features:
  • Engineered to resist electrochemical degradation, the leading cause of hose failure
  • Built-in steel spiral wire allows for medium sized curves without kinking or collapsing
  • EPDM tube and Neoprene cover for extended service life
  • Polyester fabric-ply reinforcement vulcanizes into shape without unnecessary strain on connections
  • Resistant to heat, oil and ozone
  • Performs to SAE 20R5 Type EC Class D-2 specifications
  • 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.
See More

Gates – Premium Molded Coolant Hose (Part No.21042)

Premium Molded Coolant Hose

from

$42.99
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

Gates – Premium Molded Coolant Hose (Part No.21115)

Premium Molded Coolant Hose

from

$38.99
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

Dayco – Flex Radiator Hoses; Neoprene, Heavy Duty, 11.5 Inch Long, 2.5 Inch Inner Dia. (Part No.82261GL)

Flex Radiator Hoses; Neoprene, Heavy Duty, 11.5 Inch Long, 2.5 Inch Inner Dia.

from

$34.99
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 splitting, ballooning and elongation as well as resist ozone and other detrimental environmental elements, coolants and temperature variations of -40 Deg. F (-40 Deg. C) to +257 Deg. F (+125 Deg. C). With corrugations that provide excellent hose flexibility without flattening or collapsing, the Dayco flex radiator hose also features a helical steel coil spring for increased flexibility.

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
See More

Gates – Green Stripe« Heavy-Duty Vulco-Flex« Coolant Hose (Part No.26502)

Green Stripe« Heavy-Duty Vulco-Flex« Coolant Hose

from

$27.99
Heavy-duty flexible hose designed to replace straight or curved coolant hoses. The benefit is maximum coverage with minimum inventory. Hose inside diameter remains constant from end to end. No convolutions inside hose so tube is smooth, allowing free coolant flow. Approved for marine applications.

Product Features:
  • Engineered to resist electrochemical degradation, the leading cause of hose failure
  • Built-in steel spiral wire allows for medium sized curves without kinking or collapsing
  • EPDM tube and Neoprene cover for extended service life
  • Polyester fabric-ply reinforcement vulcanizes into shape without unnecessary strain on connections
  • Resistant to heat, oil and ozone
  • Performs to SAE 20R5 Type EC Class D-2 specifications
  • 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.
See More

Dayco – Curved Radiator Hoses: EPDM Rubber, Standard Duty, 7" Long, 2.25" Diameter (Part No.B71010)

Curved Radiator Hoses: EPDM Rubber, Standard Duty, 7" Long, 2.25" Diameter

from

$13.49
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 – Straight Radiator Hoses; Silicone, HD, 2 1/2 Inch Inner Dia. (Sold by foot) (Part No.78250GL)

Straight Radiator Hoses; Silicone, HD, 2 1/2 Inch Inner Dia. (Sold by foot)

from

$6.29
Made with special silicone compounds and reinforced with a ply of braided polyester yarn, the Dayco straight radiator hose H.D. – silicone sustains up to six times longer service life than an ordinary coolant hose when installed with a Dayco lined hose clamp. It has a temperature rating of -40 Deg. F (-40 Deg. C) to +350 Deg. F (+175 Deg. C) and is designed for a range of H.D. trucking applications where routing is relatively straight.

Product Features:
  • Capable of withstanding extreme temperatures and high-pressure environments
  • Meets stringent OE specifications
  • Designed to meet SAE requirements J20R1, Class B Tube, Class C Cover, standard wall construction
  • PLEASE NOTE: Item is sold and priced by the foot. See store for details.
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Gates – Green Stripe« 2-Ply Straight Coolant Hose (Part No.24232)

Green Stripe« 2-Ply Straight Coolant Hose

from

$2.99
Stick hose designed for demanding heavy-duty coolant/air applications. Approved for marine applications.

Product Features:
  • Cover marked in 1 in. increments to facilitate approximate cut lengths, allows ┐custom-fit” installations
  • Engineered with compounds that resist electrochemical degradation
  • Approved for marine applications
  • Exceeds SAE 20R1 Type EC (Class D-1 Tube, and cover, Standard Wall)
  • Temperature Range: -40 Deg. F to +257 Deg. F (-40 Deg. C to +125 Deg. C)
  • Note: For a maintenance free connection, use PowerGrip SB clamps
  • Caution: Do not use for fuel or oil transfer applications
  • PLEASE NOTE: Item is priced and sold by the inch. See store for details.
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Dayco – Straight Radiator Hoses; EPDM Rubber, HD, 2 1/2 Inch Inner Dia. (Sold by inch) (Part No.77250GL)

Straight Radiator Hoses; EPDM Rubber, HD, 2 1/2 Inch Inner Dia. (Sold by inch)

from

$2.49
Designed for a wide range of heavy-duty truck applications where the routing is relatively straight, the Dayco straight radiator hose – H.D. is made with the highest quality woven mesh fabric reinforcement, neoprene cover and nitrile tube compounds to withstand the most corrosive elements in diesel engines. Providing protection from oil, coolants, coolant additives and heat, it has a temperature rating of -40?F (-40?C) to +212?F (+100?C).

Product Features:
  • Capable of withstanding extreme temperatures and high-pressure environments
  • Designed to meet SAE requirements J20R1, Class B Tube, Class C Cover, standard wall construction
  • Not suitable for fuel or oil transfer
  • PLEASE NOTE: Priced and sold by inch. See store for details.
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FAQs for Mack RM Lower Radiator Hoses

What are the most popular Lower Radiator Hoses for the Mack RM?

With 2 brands you can trust, our most popular Lower Radiator Hoses for the Mack RM are:
Curved Radiator Hoses: EPDM Rubber, Standard Duty, 10" Long, 2.50" Diameter
from $18.29
This product is not rated
Curved Radiator Hoses: EPDM Rubber, Standard Duty, 10" Long, 2.50" Diameter
Lower Radiator Hoses
Green Stripe« 2-Ply Straight Coolant Hose
from $2.99
This product is not rated
Green Stripe« 2-Ply Straight Coolant Hose
Lower Radiator Hoses
Flex Radiator Hoses; Neoprene, Heavy Duty, 24 Inch Long, 2 Inch Inner Diameter
from $58.99
This product is not rated
Flex Radiator Hoses; Neoprene, Heavy Duty, 24 Inch Long, 2 Inch Inner Diameter
Lower Radiator Hoses