Cadillac STS Heater Hoses

Your One-Stop Shop For Trusted Cadillac STS Heater Hoses

If you’re in search of Cadillac STS Heater Hoses aftermarket or OEM parts, consider your search over! Advance Auto Parts carries 14 Heater Hoses from top brands with prices ranging from $0.99 to $67.99.

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

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 Cadillac STS Heater Hoses below, order online to ship to your home, or head into your nearest Advance Auto Parts location to get started.

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Essential Cadillac STS Heater Hoses

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:
  • The specially designed materials resist collapse under vacuum.
  • Designed to resist electrochemical degradation, the main cause of casing failure
  • Pre-shaped to fit and ensure a perfect seal
  • 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 Deg. F to +257 degrees F (-40 degrees C to +125 degrees C)
  • Note: Gates recommends replacing the clamps and connectors each time a new radiator hose is installed.
  • Caution: Do not use for fuel or oil transport applications.
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Dayco – Molded Heater Hose; EPDM Rubber, 5/8 Inch Diameter, 21 1/2 Inch Length (Part No.87979)

Molded Heater Hose; EPDM Rubber, 5/8 Inch Diameter, 21 1/2 Inch Length

from

$41.99
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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Gates – Vulco Straight Coolant Hose (Sold by inch) (Part No.24020)

Vulco Straight Coolant Hose (Sold by inch)

from

$0.99
Specially engineered stick hose is ideal for straight coolant/air connections in automotive, stationary engine, industrial and home applications.

Product Features:
  • Heat-resistant lid
  • Lid marked in 1 inch increments to facilitate approximate cutting lengths, allowing for “custom” installations.
  • Meets the requirements of SAE 20R1 standard for Class D-2 walls
  • temperature range Deg. F to +257 degrees F (-40 degrees C to +125 degrees C)
  • Note: For a maintenance-free connection, use PowerGrip SB clamps
  • Warning: Do not use for fuel or oil transfer applications
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Gates – Premium Molded Heater Hose (Part No.19604)

Premium Molded Heater Hose

from

$33.99
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:
  • Possesses all the quality characteristics of Gates molded cooling tubing and is similar to original manufacturer specifications.
  • Designed to resist electrochemical degradation, the main cause of casing failure
  • EPDM tube, synthetic fiber knit reinforcement, EPDM cover
  • Meets SAE 20R3 Type EC Class D-1 and D-2 specifications
  • Temperature Range: -40 Deg. F to 275 Deg. F (-40 Deg. C -135 Deg. C)
  • Note: Gates recommends replacing the clamps and connectors each time a new radiator hose is installed.
  • Caution: Do not use for fuel or oil transport applications.
See More

Dayco – Molded Heater Hose; EPDM Rubber, 3/4 Inch Diameter, 12 Inch Length (Part No.80412)

Molded Heater Hose; EPDM Rubber, 3/4 Inch Diameter, 12 Inch Length

from

$31.99
Providing reliable service in applications requiring molded hoses, the Dayco 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
  • Meets Type EC electro-chemical requirements as specified in SAE J1684
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
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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.
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Dayco – Molded Heater Hose; EPDM Rubber, 5/8 Inch Diameter, 12 Inch Length (Part No.87838)

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

from

$13.79
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 – Molded 90 Degree Heater Hose (Part No.28475)

Molded 90 Degree Heater Hose

from

$20.29
Specially designed for difficult heater hose applications requiring sharp 90 degree bends in the hose. Eliminates the need for extensive inventory of OE type curved heater hose. Just 22 sizes handle thousands of applications.

Product Features:
  • Resists electrochemical degradation and water permeation
  • Use with heating pipe connectors and bulk heating hoses to create custom assemblies
  • Compatible for coolant, air, and water applications
  • EPDM tube and lid, reinforced with synthetic fibers
  • SAE 20R3 EC Class D1, SAE 20R4 EC Class D1
  • temperature range Deg. F to +275 degrees F (-40 degrees C to +135 degrees C)
  • Warning: Do not use for fuel or oil transfer applications
See More

Dayco – Molded Heater Hose; EPDM Rubber, 23/32 Inch Diameter, 15 Inch Length (Part No.88407)

Molded Heater Hose; EPDM Rubber, 23/32 Inch Diameter, 15 Inch Length

from

$18.29
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 – Molded Heater Hose; EPDM Rubber, 3/4 Inch Diameter, 24 Inch Length (Part No.88422)

Molded Heater Hose; EPDM Rubber, 3/4 Inch Diameter, 24 Inch Length

from

$21.79
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 – Molded 90 Degree Heater Hose (Part No.28466)

Molded 90 Degree Heater Hose

from

$19.99
Specially designed for difficult heater hose applications requiring sharp 90 degree bends in the hose. Eliminates the need for extensive inventory of OE type curved heater hose. Just 22 sizes handle thousands of applications.

Product Features:
  • Resistant to electrochemical degradation and water permeation
  • Use with heating pipe connectors and bulk heating hoses to create custom assemblies
  • Compatible for coolant, air, and water applications
  • EPDM tube and lid, reinforced with synthetic fibers
  • SAE 20R3 CE Class D1, SAE 20R4 CE Class D1
  • temperature range Deg. F to +275 degrees F (-40 degrees C to +135 degrees C)
  • Caution: Do not use for fuel or oil transfer applications
See More

Dayco – Molded Heater Hose; EPDM Rubber, 5/8 Inch Diameter, 11 Inch Length (Part No.87631)

Molded Heater Hose; EPDM Rubber, 5/8 Inch Diameter, 11 Inch Length

from

$67.99
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 Heater Hose (Part No.19198)

Premium Molded Heater Hose

from

$55.99
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:
  • Possesses all the quality characteristics of Gates molded cooling tubing and is similar to original manufacturer specifications.
  • Designed to resist electrochemical degradation, which is the primary cause of hose failure
  • EPDM tube, synthetic fiber knit reinforcement, EPDM cover
  • Meets SAE 20R3 Type EC Class D-1 and D-2 specifications
  • Temperature range: -40 Deg. F to +275 Deg. F (-40 Deg. F (+135 Deg. C)
  • Note: Gates recommends replacing the clamps and connectors each time a new radiator hose is installed.
  • Warning: Do not use for fuel or oil transfer applications
See More

Heater Hoses Brands You Can Trust For Your Cadillac STS

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

Most Purchased Cadillac STS 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 Cadillac STS. Here are the Dayco Heater Hoses Advanced Auto customers buy the most:
Molded Heater Hose; EPDM Rubber, 5/8 Inch Diameter, 11 Inch Length
from $67.99
This product is not rated
Molded Heater Hose; EPDM Rubber, 5/8 Inch Diameter, 11 Inch Length
Heater Hoses
Molded Heater Hose; EPDM Rubber, 23/32 Inch Diameter, 15 Inch Length
from $18.29
This product is not rated
Molded Heater Hose; EPDM Rubber, 23/32 Inch Diameter, 15 Inch Length
Heater Hoses

FAQs for Cadillac STS Heater Hoses

What are the most purchased Heater Hoses for the Cadillac STS?

Out of 14 Heater Hoses for the Cadillac STS, the most popular in our inventory are:
Molded Heater Hose; EPDM Rubber, 5/8 Inch Diameter, 11 Inch Length
from $67.99
This product is not rated
Molded Heater Hose; EPDM Rubber, 5/8 Inch Diameter, 11 Inch Length
Heater Hoses
Molded Heater Hose; EPDM Rubber, 23/32 Inch Diameter, 15 Inch Length
from $18.29
This product is not rated
Molded Heater Hose; EPDM Rubber, 23/32 Inch Diameter, 15 Inch Length
Heater Hoses
Straight Radiator Hoses; EPDM Rubber, 1 1/4 Inch Inner Diameter (sold by inch)
from $0.99
This product is not rated
Straight Radiator Hoses; EPDM Rubber, 1 1/4 Inch Inner Diameter (sold by inch)
Heater Hoses