2003 GMC Sierra 2500 Heater Hoses
More 2003 GMC Sierra 2500 Heater Hoses
Find your specific 2003 GMC Sierra 2500 original or aftermarket Heater Hoses below. Order your parts online and have delivered to your home or pick up in-store at Advance Auto.
Essential 2003 GMC Sierra 2500 Heater Hoses
Gates – Quick-Lok½ Heater Hose Connector (Part No.28500)
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$19.49
Product Features:
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- Used on cars and trucks when the original quick connector fails, or the replacement hose does not include them
- Manufactured w/ a new design that retains the O-ring so they cannot get lost or damaged
- Fit just as the OEM quick connects for easy installation as well as removal
Dorman – Coolant Connector – Inlet/Outlet 3/4In. Tube x 5/8In. Hose (Part No.800-409HP)
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$24.49
HVAC heater hose connectors fail when the plastic material fatigues from heat and vibration. This upgraded Dorman OE FIX replacement connector is made from corrosion-resistant stainless steel for greater durability.
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Product Features:
- Improved design – this HVAC heater hose connector has been redesigned for greater durability the original equipment part
- Durable construction – this heater hose connector is made of stainless steel instead of the original equipment connector to reduce damage from heat fatigue and vibration
- Easy to install – matches the original equipment form and dimensions for a simple replacement
- Quality tested – this part has undergone try-on, corrosion, heat and pressure testing to ensure a quality fit and long service life
Dorman – Heater Hose Connector (Part No.800-916)
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$13.99
Made of quality materials, this HVAC heater hose connector matches the fit and function of an original equipment connector to restore leak-free performance.
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Product Features:
- Quality replacement – this heater hose connector matches the fit and function of the original equipment connector
- Durable construction – this heater hose connector is made of quality materials for a precise fit and leak-free durability
- Cost-effective solution – offers original equipment quality at competitive price
- Performance tested – this connector has been rigorously pressure tested to ensure reliable performance
Dorman – Heater Hose Connecto (Part No.R3036834783DOR)
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$10.87
Heater Hose Connecto
Dorman – Coolant Connector – Inlet/Outlet 3/4In. Tube x 5/8In. Hose (Part No.800-409)
from
$12.49
Made of quality materials, this HVAC heater hose connector matches the fit and function of an original equipment connector to restore leak-free performance.
Product Features:
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Product Features:
- Quality replacement – this heater hose connector matches the fit and function of the original equipment connector
- Durable construction – this heater hose connector is made of quality materials for a precise fit and leak-free durability
- Cost-effective solution – offers original equipment quality at competitive price
- Performance tested – this connector has been rigorously pressure tested to ensure reliable performance
Dorman – Coolant HVAC Connector (Part No.800-917)
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$15.99
Made of quality materials, this HVAC heater hose connector matches the fit and function of an original equipment connector to restore leak-free performance.
Product Features:
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Product Features:
- Quality replacement – this heater hose connector matches the fit and function of the original equipment connector
- Durable construction – this heater hose connector is made of quality materials for a precise fit and leak-free durability
- Cost-effective solution – offers original equipment quality at competitive price
- Performance tested – this connector has been rigorously pressure tested to ensure reliable performance
Dorman – Molded Heater Hose: Rubber (Part No.626-557)
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$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:
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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 – Dayco, Heater Hose (Part No.R30301220888DAY)
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$54.96
Dayco, Heater Hose
Gates – Premium Molded Heater Hose (Part No.18623)
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$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:
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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 – Molded Heater Hose; EPDM Rubber, 5/8 Inch Diameter, 28 Inch Length (Part No.87848)
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$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.
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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:
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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, 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:
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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 Modular Coolant Hose (Part No.22554)
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$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.
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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
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:
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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
ACDelco – Heater Hose (Part No.R3030578543ACD)
from
$68.23
Heater Hose
Dayco – Molded Heater Hose; EPDM Rubber, 3/4 Inch Diameter, 15 1/2 Inch Length (Part No.87959)
from
$68.99
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:
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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.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:
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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 – Straight Heater Hose: EPDM, Direct Fit, 0.625" Inside Diameter (Sold by foot) (Part No.28411)
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$1.49
Premium hose constructed for long service life.
Product Features:
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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 – 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:
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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
Popular 2003 GMC Sierra 2500 Heater Hoses Categories
2003 GMC Sierra 2500 Heater Hoses
Maybe you’re in the middle of a full rebuild of that 2003 GMC Sierra 2500. Maybe you just need a couple of Heater Hoses. Either way, Advance Auto Parts has 18 different Heater Hoses in our inventory ranging from $1.49 to $68.99. That means you can find the exact parts or products you need to keep that 2003 GMC Sierra 2500 running smoothly.
Heater Hoses are only as good as their brand. We stock 4 different brands to make sure you have plenty of trusted parts to choose from for your 2003 GMC Sierra 2500. Dorman, Dayco, and Gates are just some of the brands we stock. Search for brands you know or compare prices and reviews to help you decide!
We know you’ll find the perfect Heater Hoses for your 2003 GMC Sierra 2500, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 117 reviews in this category, some of the top rated parts include Heater Hose with 3.0 stars.
So if you’re in the market for aftermarket Heater Hoses to keep your 2003 GMC Sierra 2500 rolling for years to come, look no further. Shop online and have your products shipped direct to your door, or pick up at the nearest Advance Auto Parts location today!
Heater Hoses Brands To Make Your 2003 GMC Sierra 2500 Last
Simple repair, complete replacement, or a full rebuild. No matter the job, your 2003 GMC Sierra 2500 demands trusted brand parts and products to keep it running. Many trusted brands of Heater Hoses make up Advance Auto Parts’ inventory, and all are ready to help make your Sierra 2500 the best it can be. Be sure to browse some of our top Heater Hoses brands and parts.
Popular Dayco Heater Hoses
We carry Dayco parts in our stock across Heater Hoses categories, plus more. For a 2003 GMC Sierra 2500, our most popular Dayco Heater Hoses include:
Top 2003 GMC Sierra 2500 Heater Hoses from Dorman
Dorman products are another trusted brand when it comes to Heater Hoses for your 2003 GMC Sierra 2500. Popular Dorman parts include:
FAQs for 2003 GMC Sierra 2500 Heater Hoses
What are the most purchased Heater Hoses for the 2003 GMC Sierra 2500?
Out of 18 Heater Hoses for the 2003 GMC Sierra 2500, the most popular in our inventory are:
What are the top-rated 2003 GMC Sierra 2500 Heater Hoses?
Top-rated Heater Hoses for your 2003 GMC Sierra 2500 based on customer reviews/ratings are:
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$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”
