2006 Peterbilt 378 Heater Hoses

Keep Your 2006 Peterbilt 378 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 2006 Peterbilt 378 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.

Competitive Prices and Extensive Inventory

The average price for a 2006 Peterbilt 378 Heater Hose at Advance Auto Parts is around $3.09, with a range that starts at $1.29 and goes up to $4.99. With 3 options in stock from one trusted brand, finding the right fit is easy. Popular picks like Straight Heater Hose; EPDM Rubber, 1 Inch Diameter (sold by foot), Straight Heater Hose; EPDM Rubber, 3/4 Inch Diameter (sold by foot), and Straight Radiator Hoses; EPDM Rubber, HD, 3 Inch Inner Dia. (sold by foot) start at just $1.29 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Heater Hose, don’t forget to check out other key components like Belt Tensioners and Pulleys. At Advance Auto Parts, we’re here to help you keep your 2006 Peterbilt 378 in peak condition, inside and out.

Essential 2006 Peterbilt 378 Heater Hoses

Dayco – Curved Radiator Hoses: EPDM Rubber, Standard Duty, 10" Long, 1" Diameter (Part No.B71501)

Curved Radiator Hoses: EPDM Rubber, Standard Duty, 10" Long, 1" 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
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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

Dayco – Straight Heater Hose; EPDM Rubber, 1 Inch Diameter (sold by foot) (Part No.80319)

Straight Heater Hose; EPDM Rubber, 1 Inch Diameter (sold by foot)

from

$4.99
This premium Dayco Insulone Heater Hose delivers heated coolant to the heater core with minimal heat loss. The synthetic EPDM rubber compounds and spiral reinforcement gives this hose excellent burst strength, heat resistance, and compatibility with all common coolants and coolant additives. A special compound used in the insulating layer provides an added measure of protection against heat loss. Built with a black cover, this hose is similar to SAE 20R3, Class D-2 with a temperature range of -40 Degree F (-40 Degree C) to +257 Degree F (+125 Degree C). Note: NOT suitable for fuel or oil transfer.

Product Features:
  • Synthetic EPDM rubber compounds and spiral reinforcement provides excellent burst strength and heat resistance
  • Compatible with all common coolants and coolant additives
  • Insulating layer provides an added measure of protection against heat loss
  • Performs well in temperature ranges 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 Radiator Hoses; EPDM Rubber, HD, 1 1/2 Inch Inner Dia. (sold by inch) (Part No.77150GL)

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

from

$1.79
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 Deg. F (-40 Deg. C) to +212 Deg. F (+100 Deg. 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: Item is sold and priced by the inch. 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

Dayco – Straight Radiator Hoses; EPDM Rubber, HD, 3 Inch Inner Dia. (sold by foot) (Part No.77300GL)

Straight Radiator Hoses; EPDM Rubber, HD, 3 Inch Inner Dia. (sold by foot)

from

$2.99
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: Item is sold and priced by the foot. See store for details.
See More

Dayco – Straight Radiator Hoses; EPDM Rubber, HD, 1 1/4 Inch Inner Dia. (sold by foot) (Part No.77125GL)

Straight Radiator Hoses; EPDM Rubber, HD, 1 1/4 Inch Inner Dia. (sold by foot)

from

$1.79
Designed for a wide range of light and heavy duty truck applications where the radiator hose routing is relatively straight, Dayco Heavy Duty Straight Radiator Hose 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: oil, coolants, coolant additives, and temperature ranges of -40 Degree F (-40 Degree C) to +212 Degree F (+100 Degree C). This hose meets SAE requirements J20R1, Class B Tube, Class C Cover, standard wall construction. Note: This hose is NOT suitable for fuel or oil transfer.

Product Features:
  • Meets SAE requirements J20R1, Class B Tube, Class C Cover, standard wall construction
  • Made with the highest quality woven mesh fabric reinforcement, neoprene cover, and nitrile tube compounds
  • Performs well in temperature ranges of -40 Degree F (-40 Degree C) to +212 Degree F (+100 Degree C)
  • Withstands the most corrosive elements in diesel engines: oil, coolants, and coolant additives
  • PLEASE NOTE: Priced and sold by inch. See store for details.
See More

Most Popular Heater Hoses for 2006 Peterbilt 378s

Enhance your 2006 Peterbilt 378 with one of the 3 Heater Hoses we have in stock, starting at just $1.29.

Dayco – Straight Heater Hose; EPDM Rubber, 1 Inch Diameter (sold by foot) (Part No.80319)

Straight Heater Hose; EPDM Rubber, 1 Inch Diameter (sold by foot)

from

$4.99
This premium Dayco Insulone Heater Hose delivers heated coolant to the heater core with minimal heat loss. The synthetic EPDM rubber compounds and spiral reinforcement gives this hose excellent burst strength, heat resistance, and compatibility with all common coolants and coolant additives. A special compound used in the insulating layer provides an added measure of protection against heat loss. Built with a black cover, this hose is similar to SAE 20R3, Class D-2 with a temperature range of -40 Degree F (-40 Degree C) to +257 Degree F (+125 Degree C). Note: NOT suitable for fuel or oil transfer.

Product Features:
  • Synthetic EPDM rubber compounds and spiral reinforcement provides excellent burst strength and heat resistance
  • Compatible with all common coolants and coolant additives
  • Insulating layer provides an added measure of protection against heat loss
  • Performs well in temperature ranges 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 Radiator Hoses; EPDM Rubber, HD, 3 Inch Inner Dia. (sold by foot) (Part No.77300GL)

Straight Radiator Hoses; EPDM Rubber, HD, 3 Inch Inner Dia. (sold by foot)

from

$2.99
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: 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 2006 Peterbilt 378 Heater Hoses

What are the best-selling Heater Hoses for 2006 Peterbilt 378s?

Out of 3 Heater Hoses that fit 2006 Peterbilt 378s, the following parts are the top sellers:

What’s the price range for 2006 Peterbilt 378 Heater Hoses?

The prices of Heater Hoses for the 2006 Peterbilt 378 range from $1.29 up to $4.99 for the most premium parts.

What is the average price of a Heater Hose for a 2006 Peterbilt 378?

The average price for Heater Hoses for the 2006 Peterbilt 378 is $3.09. 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 Peterbilt 378 model years?

Yes, we carry Heater Hoses for 18 model years of Peterbilt 378s between 1988 and 2007. The following model years are the most popular for Heater Hose purchases: 1991, 1989, 1988, 2003, 2004, 2007, 2000, 1994, and 1996.

What are the cheapest Heater Hoses for my 2006 Peterbilt 378?

Does Advance Auto Parts sell Heater Hoses for any other 2006 Peterbilt models?

Yes. We stock Heater Hoses for 7 other popular 2006 Peterbilt models. Some of the most popular are 2006 387 Heater Hoses, 2006 386 Heater Hoses, 2006 385 Heater Hoses, 2006 379 Heater Hoses, and 2006 362 Heater Hoses.

What types of Heater Hoses do you sell for my 2006 Peterbilt 378?

We currently have just 1 Heater Hose in stock for a 2006 Peterbilt 378, and as of 11/2/25, it is a Heater Hose.

Can I get help with 2006 Peterbilt 378 Heater Hose orders?

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

What is your return policy for Peterbilt 378 Heater Hoses?

Advance Auto Parts keeps returns simple. For new Peterbilt 378 Heater Hoses and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.