1981 GMC C3500 Engine Cooling Hoses

Keep Your 1981 GMC C3500 in Top Shape with Quality Engine Cooling Hoses

Whether you’re repairing or upgrading your Engine Cooling Hose, using high-quality parts is key to keeping your 1981 GMC C3500 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Lower Radiator Hoses and Upper Radiator Hoses. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Top-Rated Engine Cooling Hoses from Trusted Brands

Looking for a reliable Engine Cooling Hose? We’ve got you covered with options from brands you know and trust like Dayco. For example, Dayco Engine Cooling Hoses start at just $14.99 with an average 4.5 star rating. With over 3 reviews and a solid 5 star average, you can shop with confidence knowing other GMC C3500 owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1981 GMC C3500 Engine Cooling Hose at Advance Auto Parts is around $17.25, with a range that starts at $3.99 and goes up to $32.99. With 6 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like Curved Radiator Hoses: EPDM Rubber, Standard Duty, 19" Long, 1.25" Diameter, Premium Molded Coolant Hose, and Premium Molded Coolant Hose start at just $13.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Engine Cooling Hose, don’t forget to check out other key components like Oil Cooler Hoses and Serpentine and V Belts. At Advance Auto Parts, we’re here to help you keep your 1981 GMC C3500 in peak condition, inside and out.

Essential 1981 GMC C3500 Engine Cooling Hoses

Dayco – Curved Radiator Hoses: EPDM Rubber, Standard Duty, 29" Long, .72" Diameter (Part No.E71782)

Curved Radiator Hoses: EPDM Rubber, Standard Duty, 29" Long, .72" Diameter

from

$29.99
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 – Flex Radiator Hoses; EPDM Rubber, 23.81 Inch Long, 1.5 Inch Inner Dia. (Part No.81491)

Flex Radiator Hoses; EPDM Rubber, 23.81 Inch Long, 1.5 Inch Inner Dia.

from

$18.49
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 splitting, ballooning and elongation as well as resist ozone and other detrimental environmental elements, coolants and temperature variations of -40øF (-40øC) to +257øF (+125øC). 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
  • This hose is designed to prevent splitting, ballooning, and elongation
See More

Dayco – Curved Radiator Hoses: EPDM Rubber, Standard Duty, 21" Long, 1.75" Diameter (Part No.E72195)

Curved Radiator Hoses: EPDM Rubber, Standard Duty, 21" Long, 1.75" 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

Gates – Premium Molded Coolant Hose (Part No.21717)

Premium Molded Coolant Hose

from

$23.49
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
See More

Dayco – Curved Radiator Hoses: EPDM Rubber, Standard Duty, 16.50" Long, 1.50" Diameter (Part No.D70649)

Curved Radiator Hoses: EPDM Rubber, Standard Duty, 16.50" Long, 1.50" Diameter

from

$33.99
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 – Flex Radiator Hoses; EPDM Rubber, 22 Inch Long, 1.5 Inch Inner Dia. (Part No.81191)

Flex Radiator Hoses; EPDM Rubber, 22 Inch Long, 1.5 Inch Inner Dia.

from

$15.99
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 -40øF (-40øC) to +257øF (+125øC). 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
  • This hose is designed to prevent splitting, ballooning, and elongation
See More

Gates – Premium Molded Coolant Hose (Part No.21620)

Premium Molded Coolant Hose

from

$24.99
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 – Curved Radiator Hoses: EPDM Rubber, Standard Duty, 20.75" Long, 1.78" Diameter (Part No.E71761)

Curved Radiator Hoses: EPDM Rubber, Standard Duty, 20.75" Long, 1.78" Diameter

from

$70.99
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, 15" Long, 1.53" Diameter (Part No.D71762)

Curved Radiator Hoses: EPDM Rubber, Standard Duty, 15" Long, 1.53" Diameter

from

$24.99
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

Gates – Premium Molded Coolant Hose (Part No.23403)

Premium Molded Coolant Hose

from

$45.99
Gates Molded Coolant Hose is manufactured to fit specific applications. Similar to OEM specifications. Approved for marine applications.

Product Features:
  • Specifically designed materials resist collapse under vacuum
  • Designed to withstand electrochemical degradation, the leading cause of hose failure
  • Pre-shaped to fit and ensure a perfect seal
  • EPDM tube; knitted synthetic fiber reinforcement; EPDM lid resistant to heat, ozone and chemical refrigerants
  • Meets the requirements of SAE 20R4, Class D2 and DIN 73411, Class A (except for tolerances)
  • Temperature range -40 degrees F to +257 degrees F (-40 degrees C to +125 degrees C)
  • Note: Gates recommends replacing clamps and connectors each time a new cooling hose is installed.
  • Warning: Do not use for fuel or oil transfer applications
See More

Gates – Premium Molded Coolant Hose (Part No.20841)

Premium Molded Coolant Hose

from

$26.99
Gates Molded Coolant Hose is manufactured to fit specific applications. Similar to OEM specifications. Approved for marine applications.

Product Features:
  • Specifically designed materials resist collapse under vacuum
  • Designed to withstand electrochemical degradation, the leading cause of hose failure
  • Pre-formed for a good fit and to ensure perfectly sealed connections
  • EPDM Tube; synthetic fiber knit reinforcement; EPDM cover resistant to heat, ozone and chemical refrigerants
  • 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
  • Warning: Do not use for fuel or oil transfer applications
See More

Gates – Premium Molded Coolant Hose (Part No.20843)

Premium Molded Coolant Hose

from

$23.79
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 – Curved Radiator Hoses: EPDM Rubber, Standard Duty, 19" Long, 1.25" Diameter (Part No.E71035)

Curved Radiator Hoses: EPDM Rubber, Standard Duty, 19" Long, 1.25" Diameter

from

$13.99
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, 24" Long, 1.25" Diameter (Part No.E71036)

Curved Radiator Hoses: EPDM Rubber, Standard Duty, 24" Long, 1.25" Diameter

from

$44.99
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, 24" Long, 1.25" Diameter (Part No.E71884)

Curved Radiator Hoses: EPDM Rubber, Standard Duty, 24" Long, 1.25" Diameter

from

$27.99
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, 18.25" Long, 1.25" Diameter (Part No.E71385)

Curved Radiator Hoses: EPDM Rubber, Standard Duty, 18.25" Long, 1.25" Diameter

from

$14.99
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 – Flex Radiator Hoses; EPDM Rubber, 21.44 Inch Long, 1.5 Inch Inner Dia. (Part No.81492)

Flex Radiator Hoses; EPDM Rubber, 21.44 Inch Long, 1.5 Inch Inner Dia.

from

$15.99
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 -40øF (-40øC) to +257øF (+125øC). 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
  • This hose is designed to prevent splitting, ballooning, and elongation
See More

Dayco – Flex Radiator Hoses; EPDM Rubber, 19.5 In. Long, 1.75 In. to 1.5 In. Inner Dia. (Part No.81261)

Flex Radiator Hoses; EPDM Rubber, 19.5 In. Long, 1.75 In. to 1.5 In. Inner Dia.

from

$14.99
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 -40øF (-40øC) to +257øF (+125øC). 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
  • This hose is designed to prevent splitting, ballooning, and elongation
See More

Dayco – Curved Radiator Hoses: EPDM Rubber, Standard Duty, 21.50" Long, 1.25" Diameter (Part No.E71880)

Curved Radiator Hoses: EPDM Rubber, Standard Duty, 21.50" Long, 1.25" Diameter

from

$48.99
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

Gates – Safety Stripe Standard Straight Heater Hose (Sold by foot) (Part No.28412)

Safety Stripe Standard Straight Heater Hose (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 transportation 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.
See More

Gates – Safety Stripe Standard Straight Heater Hose (Sold by foot) (Part No.28413)

Safety Stripe Standard Straight Heater Hose (Sold by foot)

from

$4.99
Premium hose constructed for long service life.

Product Features:
  • Good resistance to high temperatures for extended periods of time, which extends the 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 transportation 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.
See More

Dayco – Curved Radiator Hoses: EPDM Rubber, Standard Duty, 20" Long, 1.50" Diameter (Part No.E70392)

Curved Radiator Hoses: EPDM Rubber, Standard Duty, 20" Long, 1.50" Diameter

from

$17.49
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, 19" Long, 1.81" Diameter (Part No.E71476)

Curved Radiator Hoses: EPDM Rubber, Standard Duty, 19" Long, 1.81" Diameter

from

$28.49
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; EPDM Rubber, 1 1/4 Inch Inner Diameter (sold by inch) (Part No.76125)

Straight Radiator Hoses; EPDM Rubber, 1 1/4 Inch Inner Diameter (sold by inch)

from

$0.99
The Dayco Straight Radiator Hose is designed for a wide range of light and heavy-duty truck applications where the radiator hose routing is relatively straight. Note: This hose is NOT suitable for fuel or oil transfer.

Product Features:
  • Meets SAE J20R4, Class D-2 requirements.
  • Features a high strength knitted reinforcement and synthetic EPDM rubber construction
  • Resistant to standard coolants, ozone and other detrimental environmental elements
See More

Dayco – Curved Radiator Hoses: EPDM Rubber, Standard Duty, 24" Long, 1.25" Diameter (Part No.E71882)

Curved Radiator Hoses: EPDM Rubber, Standard Duty, 24" Long, 1.25" Diameter

from

$30.99
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, 24" Long, 1.50" Diameter (Part No.E70935)

Curved Radiator Hoses: EPDM Rubber, Standard Duty, 24" Long, 1.50" Diameter

from

$44.99
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

Gates – Premium Molded Coolant Hose (Part No.21201)

Premium Molded Coolant Hose

from

$32.99
Gates Molded Coolant Hose is manufactured to fit specific applications. Similar to OEM specifications. Approved for marine applications.

Product Features:
  • Specifically designed materials resist collapse under vacuum
  • Designed to resist electrochemical degradation, which is the leading cause of hose failure
  • Pre-shaped to fit and ensure a perfect seal
  • EPDM tube; knitted synthetic fiber reinforcement; EPDM lid resistant to heat, ozone and chemical refrigerants
  • Meets the requirements of SAE 20R4, Class D2 and DIN 73411, Class A (except for tolerances)
  • Temperature range -40 degrees F to +257 degrees F (-40 degrees C to +125 degrees C)
  • Note: Gates recommends replacing clamps and connectors each time a new radiator hose is installed.
  • Warning: Do not use for fuel or oil transfer applications
See More

Dayco – Curved Radiator Hoses: EPDM Rubber, Standard Duty, 19" Long, 1.50" Diameter (Part No.E70777)

Curved Radiator Hoses: EPDM Rubber, Standard Duty, 19" Long, 1.50" Diameter

from

$10.99
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

Most Popular Lower Radiator Hoses for 1981 GMC C3500s

Enhance your 1981 GMC C3500 with one of the 3 Lower Radiator Hoses we have in stock, starting at just $13.99.

Dayco – Curved Radiator Hoses: EPDM Rubber, Standard Duty, 19" Long, 1.25" Diameter (Part No.E71035)

Curved Radiator Hoses: EPDM Rubber, Standard Duty, 19" Long, 1.25" Diameter

from

$13.99
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

Gates – Premium Molded Coolant Hose (Part No.20843)

Premium Molded Coolant Hose

from

$23.79
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.20841)

Premium Molded Coolant Hose

from

$26.99
Gates Molded Coolant Hose is manufactured to fit specific applications. Similar to OEM specifications. Approved for marine applications.

Product Features:
  • Specifically designed materials resist collapse under vacuum
  • Designed to withstand electrochemical degradation, the leading cause of hose failure
  • Pre-formed for a good fit and to ensure perfectly sealed connections
  • EPDM Tube; synthetic fiber knit reinforcement; EPDM cover resistant to heat, ozone and chemical refrigerants
  • 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
  • Warning: Do not use for fuel or oil transfer applications
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Best-Selling 1981 GMC C3500 Upper Radiator Hoses

Upgrade your C3500 with one of our 3 best-selling Upper Radiator Hoses, earning an average 5 stars rating across 3 reviews.

Dayco – Flex Radiator Hoses; EPDM Rubber, 19.5 In. Long, 1.75 In. to 1.5 In. Inner Dia. (Part No.81261)

Flex Radiator Hoses; EPDM Rubber, 19.5 In. Long, 1.75 In. to 1.5 In. Inner Dia.

from

$14.99
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 -40øF (-40øC) to +257øF (+125øC). 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
  • This hose is designed to prevent splitting, ballooning, and elongation
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Gates – Premium Molded Coolant Hose (Part No.21201)

Premium Molded Coolant Hose

from

$32.99
Gates Molded Coolant Hose is manufactured to fit specific applications. Similar to OEM specifications. Approved for marine applications.

Product Features:
  • Specifically designed materials resist collapse under vacuum
  • Designed to resist electrochemical degradation, which is the leading cause of hose failure
  • Pre-shaped to fit and ensure a perfect seal
  • EPDM tube; knitted synthetic fiber reinforcement; EPDM lid resistant to heat, ozone and chemical refrigerants
  • Meets the requirements of SAE 20R4, Class D2 and DIN 73411, Class A (except for tolerances)
  • Temperature range -40 degrees F to +257 degrees F (-40 degrees C to +125 degrees C)
  • Note: Gates recommends replacing clamps and connectors each time a new radiator hose is installed.
  • Warning: Do not use for fuel or oil transfer applications
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Gates – Safety Stripe Standard Straight Heater Hose (Sold by foot) (Part No.28412)

Safety Stripe Standard Straight Heater Hose (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 transportation 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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Top-Rated Engine Cooling Hose Brands For Your 1981 GMC C3500

When it comes to finding the perfect Engine Cooling Hose for your 1981 GMC C3500, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 2 trusted brands. We carry the most popular Engine Cooling Hose brands including Dayco, and more, all known for their exceptional customer ratings (average brand rating of 4.5 stars) and competitive prices, as low as $14.99. Purchasing a Engine Cooling Hose from us here at Advance Auto Parts is a smart move for both you and your 1981 GMC C3500, providing peace of mind with parts that meet or exceed OEM standards.

Popular Dayco 1981 GMC C3500 Engine Cooling Hoses

If you’re looking for a top-quality Engine Cooling Hose for your 1981 GMC C3500, Advance Auto Parts has exactly what you need with our selection of Dayco Engine Cooling Hoses. We have 1 Dayco Engine Cooling Hoses in stock for this fitment, all known for their durability and precision fit. With prices starting at just $14.99, you’ll find the perfect Engine Cooling Hose for your needs and budget. Dayco Engine Cooling Hoses for the 1981 GMC C3500 come highly rated, with over 3 customer reviews and an impressive average rating of 4.5 stars. Choosing a Dayco Engine Cooling Hose from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.

FAQs for 1981 GMC C3500 Engine Cooling Hoses

What are the best-selling Engine Cooling Hoses for 1981 GMC C3500s?

Out of 6 Engine Cooling Hoses that fit 1981 GMC C3500s, the following parts are the top sellers:

What’s the price range for 1981 GMC C3500 Engine Cooling Hoses?

The prices of Engine Cooling Hoses for the 1981 GMC C3500 range from $3.99 up to $32.99 for the most premium parts.

What is the average price of an Engine Cooling Hose for a 1981 GMC C3500?

The average price for Engine Cooling Hoses for the 1981 GMC C3500 is $17.25. Keep in mind the variety of part types within our Engine Cooling Hose category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Engine Cooling Hoses for other GMC C3500 model years?

Yes, we carry Engine Cooling Hoses for 18 model years of GMC C3500s between 1979 and 1999. The following model years are the most popular for Engine Cooling Hose purchases: 1999, 1998, 1997, 1996, 1995, 1994, 1993, 1992, and 1991.

What are the cheapest Engine Cooling Hoses for my 1981 GMC C3500?

Does Advance Auto Parts sell Engine Cooling Hoses for any other 1981 GMC models?

Yes. We stock Engine Cooling Hoses for 18 other popular 1981 GMC models. Some of the most popular are 1981 Jimmy Engine Cooling Hoses, 1981 K2500 Engine Cooling Hoses, 1981 C2500 Engine Cooling Hoses, 1981 K1500 Engine Cooling Hoses, and 1981 C1500 Engine Cooling Hoses.

What are the top-rated Engine Cooling Hoses that fit the 1981 GMC C3500?

The one 1981 GMC C3500 Engine Cooling Hose we have in stock is the Safety Stripe Standard Straight Heater Hose (Sold by foot). It costs $3.99.

What types of Engine Cooling Hoses do you sell for my 1981 GMC C3500?

As of 11/2/25, these are some of the most in-demand types of Engine Cooling Hoses for a 1981 GMC C3500:

Can I get help with 1981 GMC C3500 Engine Cooling Hose orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about GMC Engine Cooling Hoses and more.

What is your return policy for GMC C3500 Engine Cooling Hoses?

Advance Auto Parts keeps returns simple. For new GMC C3500 Engine Cooling Hoses and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.