1981 Chevrolet K20 Heater Hoses

Keep Your 1981 Chevrolet K20 in Top Shape with Quality Heater Hoses

Whether you’re repairing or upgrading your Heater Hose, using high-quality parts is key to keeping your 1981 Chevrolet K20 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Heater 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.

Explore Related Parts

While you’re upgrading or replacing your Heater 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 Chevrolet K20 in peak condition, inside and out.

Essential 1981 Chevrolet K20 Heater Hoses

Dayco – Straight Heater Hose; EPDM Rubber, 3/4 Inch Diameter (sold by foot) (Part No.80273)

Straight Heater Hose; EPDM Rubber, 3/4 Inch Diameter (sold by foot)

from

$1.29
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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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.
See More

Most Popular Heater Hoses for 1981 Chevrolet K20s

Enhance your 1981 Chevrolet K20 with one of the 2 Heater Hoses we have in stock, starting at just $1.29.

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.
See More

Dayco – Straight Heater Hose; EPDM Rubber, 3/4 Inch Diameter (sold by foot) (Part No.80273)

Straight Heater Hose; EPDM Rubber, 3/4 Inch Diameter (sold by foot)

from

$1.29
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.
See More

FAQs for 1981 Chevrolet K20 Heater Hoses

What are the best-selling Heater Hoses for 1981 Chevrolet K20s?

Out of 2 Heater Hoses that fit 1981 Chevrolet K20s, the following parts are the top sellers:

What’s the price range for 1981 Chevrolet K20 Heater Hoses?

The prices of Heater Hoses for the 1981 Chevrolet K20 range from $1.29 up to $1.99 for the most premium parts.

What is the average price of a Heater Hose for a 1981 Chevrolet K20?

The average price for Heater Hoses for the 1981 Chevrolet K20 is $1.64. Keep in mind the variety of part types within our Heater 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 Heater Hoses for other Chevrolet K20 model years?

Yes, we carry Heater Hoses for 10 model years of Chevrolet K20s between 1975 and 1986. The following model years are the most popular for Heater Hose purchases: 1986, 1985, 1984, 1983, 1982, 1977, 1975, 1976, and 1979.

What are the cheapest Heater Hoses for my 1981 Chevrolet K20?

The cheapest 1981 Chevrolet K20 Heater Hoses we carry are:

Does Advance Auto Parts sell Heater Hoses for any other 1981 Chevrolet models?

Yes. We stock Heater Hoses for 21 other popular 1981 Chevrolet models. Some of the most popular are 1981 Impala Heater Hoses, 1981 Malibu Heater Hoses, 1981 Camaro Heater Hoses, 1981 Monte Carlo Heater Hoses, and 1981 Corvette Heater Hoses.

What types of Heater Hoses do you sell for my 1981 Chevrolet K20?

We currently have just 1 Heater Hose in stock for a 1981 Chevrolet K20, and as of 11/2/25, it is a Heater Hose.

Can I get help with 1981 Chevrolet K20 Heater Hose orders?

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

What is your return policy for Chevrolet K20 Heater Hoses?

Advance Auto Parts keeps returns simple. For new Chevrolet K20 Heater Hoses and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.