2003 Cadillac Escalade Heater Hoses
Your 2003 Cadillac Escalade might be the best vehicle you’ve ever owned. Or you may just be struggling to keep it highway-approved. No matter the situation, Advance Auto Parts has the Heater Hoses you desperately need.
We currently carry 20 Heater Hoses to choose from for your 2003 Cadillac Escalade, and our inventory prices range from as little as $0.83 up to $68.23.
On top of low prices, Advance Auto Parts offers 4 different trusted brands of Heater Hoses for the 2003 Cadillac Escalade. We only sell parts from trusted brands like Dorman so that you can find quality parts you can count on.
Don’t take our word for it – check out customer ratings and reviews to buy with confidence. We have 121 reviews on our Heater Hoses for the 2003 Cadillac Escalade from previous customers.
Have parts delivered straight to your home, or find the nearest Advance Auto Parts store to check out our Heater Hoses stock in-person!
Heater Hoses for Your 2003 Cadillac Escalade
Dayco – Molded Heater Hose; EPDM Rubber, 5/8 Inch Diameter, 28 Inch Length (Part No.87848)
from
$40.99
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:
See More
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
Dayco – Molded Heater Hose; EPDM Rubber, 23/32 Inch Diameter, 12 Inch Length (Part No.88412)
from
$60.99
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:
See More
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
Dorman – Molded Heater Hose: Rubber/Plastic (Part No.626-111)
from
$58.99
This replacement HVAC heater hose assembly is engineered to match the fit and durability of the stock heater hose assembly on specified vehicles. It is designed to withstand extreme temperature changes to extend service life.
Product Features:
See More
Product Features:
- Ideal replacement – this HVAC heater hose assembly directly replaces the original heater hose on specified vehicle years, makes and models
- Durable construction – this part is specifically designed to withstand extreme temperature changes and resist cracking and leaking
- Cost-effective and reliable – offers original manufacturer quality at lower cost than getting replacement at dealer
- Industry-leading design – professionally engineered by the aftermarket leader in heater hose assemblies
ACDelco – Heater Hose (Part No.R3030578543ACD)
from
$68.23
Heater Hose
Dorman – Molded Heater Hose: Rubber (Part No.626-557)
from
$50.99
This replacement HVAC heater hose assembly is engineered to match the fit and durability of the stock heater hose assembly on specified vehicles. It is designed to withstand extreme temperature changes to extend service life.
Product Features:
See More
Product Features:
- Ideal replacement – this HVAC heater hose assembly directly replaces the original heater hose on specified vehicle years, makes and models
- Durable construction – this part is specifically designed to withstand extreme temperature changes and resist cracking and leaking
- Cost-effective and reliable – offers original manufacturer quality at lower cost than getting replacement at dealer
- Industry-leading design – professionally engineered by the aftermarket leader in heater hose assemblies
Dorman – Molded Heater Hose: Aluminum/Rubber, OE Fix, Upgraded Material (Part No.626-538)
from
$47.99
This replacement HVAC heater hose assembly is engineered to match the fit and durability of the stock heater hose assembly on specified vehicles. It is designed to withstand extreme temperature changes to extend service life.
Product Features:
See More
Product Features:
- Upgraded material – this replacement engine heater hose assembly features aluminum Y-connectors for added durability
- Application specific – designed to match the original fit and function of heater hoses on certain vehicle years, makes and models
- Complete replacement – hoses come with necessary clamps for easy installation
- Quality engineering – designed in the United States and backed by decades of automotive aftermarket experience
Dorman – Molded Heater Hose: Rubber (Part No.626-564)
from
$46.99
This replacement HVAC heater hose assembly is engineered to match the fit and durability of the stock heater hose assembly on specified vehicles. It is designed to withstand extreme temperature changes to extend service life.
Product Features:
See More
Product Features:
- Ideal replacement – this HVAC heater hose assembly directly replaces the original heater hose on specified vehicle years, makes and models
- Durable construction – this part is specifically designed to withstand extreme temperature changes and resist cracking and leaking
- Cost-effective and reliable – offers original manufacturer quality at lower cost than getting replacement at dealer
- Industry-leading design – professionally engineered by the aftermarket leader in heater hose assemblies
Dayco – Molded Heater Hose; EPDM Rubber, 1/4 Inch Diameter, 29 1/2 Inch Length (Part No.86836)
from
$33.49
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:
See More
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
Gates – Premium Molded Heater Hose (Part No.18126)
from
$35.99
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:
See More
Product Features:
- Has all the quality features of Gates molded coolant hose and similar to OEM specifications
- Engineered to resist electrochemical degradation ┐ the leading 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. C -135 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
Gates – Premium Molded Heater Hose (Part No.18622)
from
$56.99
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:
See More
Product Features:
- Has all the quality features of Gates molded coolant hose and similar to OEM specifications
- Engineered to resist electrochemical degradation ┐ the leading 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. C -135 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
Gates – Premium Molded Heater Hose (Part No.18623)
from
$13.79
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:
See More
Product Features:
- Has all the quality features of Gates molded coolant hose and similar to OEM specifications
- Engineered to resist electrochemical degradation ┐ the leading 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. C -135 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
Dayco – Dayco, Heater Hose (Part No.R30301220888DAY)
from
$54.96
Dayco, Heater Hose
Dorman – Heater Hose (Part No.R30301317250DOR)
from
$58.10
Durably engineered to resist corrosion and leakage, Dorman’s HVAC Heater Hose limits the possibility of overheating and subsequent engine damage. Put your engine worries to rest by preserving proper coolant circulation.
Product Features:
See More
Product Features:
- Comes with clamps and fittings (where applicable)
- Tough rubber and steel construction
- Front and rear heating and cooling lines available (where applicable)
- Rigorous quality control measures have been undertaken to ensure that this part conforms to product standards
Gates – Premium Modular Coolant Hose (Part No.22554)
from
$63.99
Modular coolant hoses are on many of today’s vehicles and are much more complex than the standard molded hoses of the past. Modular coolant hoses are hose assemblies with one or more components built into the hose. Some examples of these components include hose branches, quick connectors, valves, sensors, bleeders and flow restrictors. Manufactured identical or equivalent to the OE hose, modular coolant hoses will keep your vehicle’s cooling system running properly and efficiently for years to come.
Product Features:
See More
Product Features:
- Specifically-engineered materials resist collapse under vacuum
- Engineered to resist electrochemical degradation ┐ the leading cause of hose failure
- EPDM tube: synthetic fiber knit reinforcement, heat-, ozone- and chemical coolant-resistant EPDM cover
- Manufactured with OEM-exact hose components (quick connects, branch connectors/tees, sensors, etc.)
- Meets SAE 20R3 EC Class D1 under 25mm (1 in.) ID, SAE 20R4 EC Class D1 for 25mm (1 in.) ID and over
- Temperature Range: -40 Deg. F to +257 Deg. F (-40 Deg. C to +125 Deg. C)
- Note: Gates recommends replacing clamps each time a new coolant hose is installed
- Caution: Do not use for fuel or oil transfer applications
ACDelco – Heater Hose (Part No.R3030207231ACD)
from
$52.90
Heater Hose
Dorman – Heater Hose (Part No.R30302471089DOR)
from
$48.45
Heater Hose
Gates – Heater Hose (Part No.R3030206332GAT)
from
$41.88
Heater Hose
Gates – Straight Heater Hose: EPDM, Direct Fit, 0.75" Inside Diameter (Sold by foot) (Part No.28412)
from
$3.99
Premium hose constructed for long service life.
Product Features:
See More
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 transfer 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.
Gates – Straight Heater Hose: EPDM, Direct Fit, 0.625" Inside Diameter (Sold by foot) (Part No.28411)
from
$1.49
Premium hose constructed for long service life.
Product Features:
See More
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 transfer 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.
Dayco – Straight Heater Hose: EPDM Rubber, Universal Fit, 5/16" Inside Diameter (Sold by foot) (Part No.80258)
from
$0.83
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:
See More
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.
FAQs for 2003 Cadillac Escalade Heater Hoses
What are the most popular Heater Hoses for the 2003 Cadillac Escalade?
With 4 brands you can trust, our most popular Heater Hoses for the 2003 Cadillac Escalade parts are:
What are the best aftermarket Heater Hoses for the 2003 Cadillac Escalade?
See what past customers had to say about our highest-rated Heater Hoses for the 2003 Cadillac Escalade:
from
$68.23
(1)
Heater Hose
“The employee saw the picture and told me to order this. The picture shows that silver part on one end. the hose does come with it. you will have to bu”
