2003 Cadillac Escalade EXT Radiator Hoses
Keep Your 2003 Cadillac Escalade EXT in Top Shape with Quality Radiator Hoses
Whether you’re repairing or upgrading your Radiator Hose, using high-quality parts is key to keeping your 2003 Cadillac Escalade EXT looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Coolant Hose Connectors, Coolant Hoses, and By-Pass 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 Radiator Hoses from Trusted Brands
Looking for a reliable Radiator Hose? We’ve got you covered with options from brands you know and trust like Dayco and Dorman. For example, Dayco Radiator Hoses start at just $7.99 with an average 4.5 star rating. Dorman offer similar pricing and quality, backed by strong customer feedback. With over 138 reviews and a solid 4.7 star average, you can shop with confidence knowing other Cadillac Escalade EXT owners approve.
Competitive Prices and Extensive Inventory
The average price for a 2003 Cadillac Escalade EXT Radiator Hose at Advance Auto Parts is around $26.32, with a range that starts at $7.99 and goes up to $39.99. With 6 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like Dorman Heater Hose Connector, 800-403, Dorman Heater Hose Connector- Coolant Connector, 800-414, and Dorman – Help Coolant Hose Junction (OE Fix), 47157 start at just $16.99 and offer a great balance of form and function.
Explore Related Parts
While you’re upgrading or replacing your Radiator 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 2003 Cadillac Escalade EXT in peak condition, inside and out.
Find Your Specific 2003 Cadillac Escalade EXT Radiator Hoses
Looking for the perfect Radiator Hose for your 2003 Cadillac Escalade EXT? You’re in the right place. Below, you’ll find links to various types of Radiator Hoses that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Radiator Hoses, ensuring durability and a precise fit for your Cadillac Escalade EXT. Whether you’re driving a 2003 model or another popular model year like
2005,
2006,
2007,
2008,
2009,
2010,
2011,
2012, and
2013, we’ve got you covered. Purchasing Radiator Hoses from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Radiator Hoses that fit your vehicle.
Essential 2003 Cadillac Escalade EXT Radiator Hoses
Dorman – Dorman Heater Hose Connector- Coolant Connector, 800-414 (Part No.800-414)
from
$25.99
Made of quality materials, this HVAC heater hose connector matches the fit and function of an original equipment connector to restore leak-free performance.
See More
Dorman – Help – Dorman – Help Coolant Hose Junction (OE Fix), 47157 (Part No.47157)
from
$39.99
Fixing a failed original plastic coolant hose connector usually requires replacing the entire coolant hose assembly. This Dorman OE FIX coolant hose connector is made from aluminum for greater durability and saves expense by allowing the replacement of just the failed connector._
See More
Dorman – Dorman Heater Hose Connector, 800-403 (Part No.800-403)
from
$16.99
Made of quality materials, this HVAC heater hose connector matches the fit and function of an original equipment connector to restore leak-free performance.
See More
Dayco – "Dayco Curved Radiator Hoses: EPDM Rubber, Standard Duty, 25"" Long, 1.31"" Diameter, E71989" (Part No.E71989)
from
$31.99
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.
See More
Dayco – Dayco Molded Heater Hose EPDM Rubber, 1/4 Inch Diameter, 4 1/2 Inch Length, 86504 (Part No.86504)
from
$7.99
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 €œquick connect€ end allows for fast, convenient installation.
See More
Dayco – Dayco Molded Heater Hose EPDM Rubber, 5/8 Inch Diameter, 36 Inch Length, 80405 (Part No.80405)
from
$34.99
“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 Deg. F (-40 Deg. C) to +257 Deg. F (+125 Deg. C) and the “”quick connect”” end allows for fast, convenient installation.”
See More
Gates – Gates Safety Stripe Standard Straight Heater Hose (Sold by foot), 28410 (Part No.28410)
Popular 2003 Cadillac Escalade EXT Radiator Hoses Categories
Most Popular Coolant Hose Connectors for 2003 Cadillac Escalade EXTs
Enhance your 2003 Cadillac Escalade EXT with one of the 3 Coolant Hose Connectors we have in stock, starting at just $16.99.
Dorman – Dorman Heater Hose Connector, 800-403 (Part No.800-403)
from
$16.99
Made of quality materials, this HVAC heater hose connector matches the fit and function of an original equipment connector to restore leak-free performance.
See More
Dorman – Dorman Heater Hose Connector- Coolant Connector, 800-414 (Part No.800-414)
from
$25.99
Made of quality materials, this HVAC heater hose connector matches the fit and function of an original equipment connector to restore leak-free performance.
See More
Dorman – Help – Dorman – Help Coolant Hose Junction (OE Fix), 47157 (Part No.47157)
from
$39.99
Fixing a failed original plastic coolant hose connector usually requires replacing the entire coolant hose assembly. This Dorman OE FIX coolant hose connector is made from aluminum for greater durability and saves expense by allowing the replacement of just the failed connector._
See More
Best-Selling 2003 Cadillac Escalade EXT Coolant Hose
Upgrade your Escalade EXT with our best-selling Coolant Hose with a 5 Starts rating across 95 reviews.
Dayco – "Dayco Curved Radiator Hoses: EPDM Rubber, Standard Duty, 25"" Long, 1.31"" Diameter, E71989" (Part No.E71989)
from
$31.99
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.
See More
Top-Quality By-Pass Hoses for 2003 Cadillac Escalade EXTs
Choose a high-quality OEM or aftermarket By-Pass Hose for Cadillac Escalade EXTs and enjoy top-notch performance from $7.99.
Dayco – Dayco Molded Heater Hose EPDM Rubber, 1/4 Inch Diameter, 4 1/2 Inch Length, 86504 (Part No.86504)
from
$7.99
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 €œquick connect€ end allows for fast, convenient installation.
See More
Dayco – Dayco Molded Heater Hose EPDM Rubber, 5/8 Inch Diameter, 36 Inch Length, 80405 (Part No.80405)
from
$34.99
“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 Deg. F (-40 Deg. C) to +257 Deg. F (+125 Deg. C) and the “”quick connect”” end allows for fast, convenient installation.”
See More
Top-Rated Radiator Hose Brands For Your 2003 Cadillac Escalade EXT
When it comes to finding the perfect Radiator Hose for your 2003 Cadillac Escalade EXT, 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 Radiator Hose brands including Dayco and Dorman, and more, all known for their exceptional customer ratings (average brand rating of 4.5 stars) and competitive prices, as low as $7.99. Purchasing a Radiator Hose from us here at Advance Auto Parts is a smart move for both you and your 2003 Cadillac Escalade EXT, providing peace of mind with parts that meet or exceed OEM standards.
Popular Dayco 2003 Cadillac Escalade EXT Radiator Hoses
If you’re looking for a top-quality Radiator Hose for your 2003 Cadillac Escalade EXT, Advance Auto Parts has exactly what you need with our selection of Dayco Radiator Hoses. We have 3 Dayco Radiator Hoses in stock for this fitment, all known for their durability and precision fit. With prices starting at just $7.99 and an average cost of $24.99, you’ll find the perfect Radiator Hose for your needs and budget. Dayco Radiator Hoses for the 2003 Cadillac Escalade EXT come highly rated, with over 107 customer reviews and an impressive average rating of 4.5 stars. Choosing a Dayco Radiator Hose from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
from
$34.99
(11)
Dayco Molded Heater Hose EPDM Rubber, 5/8 Inch Diameter, 36 Inch Length, 80405
“1997 Jeep. Some reviews said hard to get on the water pump end. Used some Vaseline and it went on easy.”
from
$7.99
(1)
Dayco Molded Heater Hose EPDM Rubber, 1/4 Inch Diameter, 4 1/2 Inch Length, 86504
“Hose to coolant reservoir and the pump were the correct length, the one to the heater core was about 6″ too long (good). Hose does not come with quic”
from
$31.99
(95)
"Dayco Curved Radiator Hoses: EPDM Rubber, Standard Duty, 25"" Long, 1.31"" Diameter, E71989"
“Works like new”
Top-Quality Dorman 2003 Cadillac Escalade EXT Radiator Hoses
For those in search of a high-quality Radiator Hose for their 2003 Cadillac Escalade EXT, Advance Auto Parts offers a great selection of Dorman Radiator Hoses. With 2 Dorman Radiator Hoses in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Radiator Hoses start at just $16.99, with an average price of $21.49, giving you a range of options to suit your budget. Backed by over 31 customer ratings and an average rating of 4.2 stars, Dorman Radiator Hoses provide both reliability and excellent performance. Choosing a Dorman Radiator Hose from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
from
$16.99
(26)
Dorman Heater Hose Connector, 800-403
“Glad it was available to save me when my hose broke on the side of the road”
from
$25.99
(5)
Dorman Heater Hose Connector- Coolant Connector, 800-414
“This connector was a little difficult to slide onto the Heater Hose Connector. Once I applied some silicone grease, it installed easily and worked we”
FAQs for 2003 Cadillac Escalade EXT Radiator Hoses
What are the best-selling Radiator Hoses for 2003 Cadillac Escalade EXTs?
Out of 6 Radiator Hoses that fit 2003 Cadillac Escalade EXTs, the following parts are the top sellers:
- Dorman Heater Hose Connector, 800-403 (9110038) – $16.99
- Dorman Heater Hose Connector- Coolant Connector, 800-414 (10191251) – $25.99
- Dorman – Help Coolant Hose Junction (OE Fix), 47157 (12486385) – $39.99
What’s the price range for 2003 Cadillac Escalade EXT Radiator Hoses?
The prices of Radiator Hoses for the 2003 Cadillac Escalade EXT range from $7.99 up to $39.99 for the most premium parts.
What is the average price of a Radiator Hose for a 2003 Cadillac Escalade EXT?
The average price for Radiator Hoses for the 2003 Cadillac Escalade EXT is $26.32. Keep in mind the variety of part types within our Radiator 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 Radiator Hoses for other Cadillac Escalade EXT model years?
What are the cheapest Radiator Hoses for my 2003 Cadillac Escalade EXT?
The cheapest 2003 Cadillac Escalade EXT Radiator Hoses we carry are:
- Dayco Molded Heater Hose EPDM Rubber, 1/4 Inch Diameter, 4 1/2 Inch Length, 86504 (11452475) – $7.99
- Dorman Heater Hose Connector, 800-403 (9110038) – $16.99
- Dorman Heater Hose Connector- Coolant Connector, 800-414 (10191251) – $25.99
- "Dayco Curved Radiator Hoses: EPDM Rubber, Standard Duty, 25"" Long, 1.31"" Diameter, E71989" (12025457) – $31.99
- Dayco Molded Heater Hose EPDM Rubber, 5/8 Inch Diameter, 36 Inch Length, 80405 (5198410) – $34.99
Does Advance Auto Parts sell Radiator Hoses for any other 2003 Cadillac models?
Yes. We stock Radiator Hoses for 4 other popular 2003 Cadillac models. Some of the most popular are 2003 Escalade Radiator Hoses, 2003 Escalade ESV Radiator Hoses, 2003 DeVille Radiator Hoses, 2003 Seville Radiator Hoses, and 2003 CTS Radiator Hoses.
What are the top-rated Radiator Hoses that fit the 2003 Cadillac Escalade EXT?
Based on 138 reviews by customers, our 2003 Cadillac Escalade EXT Radiator Hoses have an average customer rating of 4.7 stars. These are the highest-rated categories of Radiator Hoses for the 2003 Cadillac Escalade EXT and their top-rated products:
- Coolant Hose Connectors
- Dorman Heater Hose Connector, 800-403 (9110038) – $16.99
- Dorman Heater Hose Connector- Coolant Connector, 800-414 (10191251) – $25.99
- Coolant Hoses
- By-Pass Hoses
What types of Radiator Hoses do you sell for my 2003 Cadillac Escalade EXT?
As of 8/2/26, these are some of the most in-demand types of Radiator Hoses for a 2003 Cadillac Escalade EXT:
Can I get help with 2003 Cadillac Escalade EXT Radiator Hose orders?
Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Cadillac Radiator Hoses and more.
What is your return policy for Cadillac Escalade EXT Radiator Hoses?
Advance Auto Parts keeps returns simple. For new Cadillac Escalade EXT Radiator Hoses and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.