GMC Sierra 3500 HD Heater Hose Fittings

Your GMC Sierra 3500 HD will be happy to know that the search for the right Heater Hose Fittings you’ve been looking for is over! Advance Auto Parts has 10 different Heater Hose Fittings for your vehicle, ready for shipping or in-store pick up. The best part is, our GMC Sierra 3500 HD Heater Hose Fittings start from as little as $12.49.

When it comes to your GMC Sierra 3500 HD, you want parts and products from only trusted brands. Here at Advance Auto Parts, we work with only top reliable Heater Hose Fittings brands so you can shop with complete confidence. Some of our top Heater Hose Fittings brands are Dorman and Gates. We’re sure you will get the right product to keep that Sierra 3500 HD running for a long time.

We even have reviews of our OEM and aftermarket Heater Hose Fittings products to help you buy with confidence. Hear from other customers via the 2,906 reviews on parts for your GMC Sierra 3500 HD.

Shop online, find the best price on the right product, and have it shipped right to your door. If you prefer to shop in person for the right Heater Hose Fittings for your Sierra 3500 HD, visit one of our local Advance Auto Parts locations and you’ll be back on the road in no time!

Compare 25 GMC Heater Hose Fittings

Dorman – Heater Hose Connector (Part No.800-401)

Heater Hose Connector

from

$12.79
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:
  • 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
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Dorman – Heater Hose Tee – 5/8 In. X 5/8 In. X 3/4 In. (Part No.800-422)

Heater Hose Tee - 5/8 In. X 5/8 In. X 3/4 In.

from

$14.99
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:
  • 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
See More

Dorman – Coolant Connector – Inlet/Outlet 3/4In. Tube x 5/8In. Hose (Part No.800-409)

Coolant Connector - Inlet/Outlet 3/4In. Tube x 5/8In. Hose

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:
  • 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
See More

Dorman – Heater Hose Connector (Part No.800-403)

Heater Hose Connector

from

$15.49
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:
  • 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
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Dorman – Heater Hose Connector- Coolant Connector (Part No.800-414)

Heater Hose Connector- Coolant Connector

from

$24.99
Our heater hose connectors are designed to resist brittleness, cracks, and coolant leaks for a longer service life.

Product Features:
  • Direct replacement for ease of installation
  • Replace only the connector, not the entire Heater Hose assembly
  • Made of high-quality materials for a longer service life
  • Fits a wide variety of applications
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Dorman – Heater Hose Connector 5/8 x 5/8 (Part No.800-416)

Heater Hose Connector 5/8 x 5/8

from

$18.49
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:
  • 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
See More

Dorman – Heater Hose Connector (Part No.800-414CD)

Heater Hose Connector

from

$26.49
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:
  • 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
See More

Dorman – Heater Hose Connector (Part No.800-413CD)

Heater Hose Connector

from

$22.29
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:
  • 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
See More

Dorman – Heater Hose Connector (Part No.800-916)

Heater Hose Connector

from

$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.

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
See More

Gates – Quick-Lok½ Heater Hose Connector (Part No.28500)

Quick-Lok½ Heater Hose Connector

from

$19.49
Product Features:
  • 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
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Dorman – Coolant HVAC Connector (Part No.800-917)

Coolant HVAC Connector

from

$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:
  • 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
See More

Dorman – Heater Hose Retaining Clip 2002-90 GM 3.1L, 3.4L, 5.0L, 5.7L and 6.2L (Part No.800-405)

Heater Hose Retaining Clip 2002-90 GM 3.1L, 3.4L, 5.0L, 5.7L and 6.2L

from

$7.99
This HVAC heater hose retainer clip is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:
  • Direct replacement – this HVAC heater hose retainer clip matches the fit and function of the factory part on specified years, makes and models
  • Ideal solution – this clip is a reliable replacement for an original part that is missing or has failed due to fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Dorman – Heater Hose Tee Connector (Part No.800-918)

Heater Hose Tee Connector

from

$28.49
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:
  • 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
See More

Dorman – Heater Hose Connector (Part No.800-411)

Heater Hose Connector

from

$14.29
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:
  • 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
See More

Dorman – Coolant Connector – Inlet/Outlet 3/4In. Tube x 5/8In. Hose (Part No.800-409HP)

Coolant Connector - Inlet/Outlet 3/4In. Tube x 5/8In. Hose

from

$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.

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
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Dorman – Cooling Quick Connector (Part No.800-413)

Cooling Quick Connector

from

$21.49
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:
  • 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
See More

Gates – Quick-Lok½ Heater Hose Connector (Part No.28501)

Quick-Lok½ Heater Hose Connector

from

$20.79
Product Features:
  • 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
See More

Dorman – Coolant Hose Connector (Part No.800-919)

Coolant Hose Connector

from

$15.29
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:
  • 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
See More

Dorman – Help – Heater Hose Connector – 5/8 In. Tube x 5/8 In. Hose (Part No.47165)

Heater Hose Connector - 5/8 In. Tube x 5/8 In. Hose

from

$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:
  • 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
See More

ACDelco – Heater Hose Connecto (Part No.R3036209226ACD)

Heater Hose Connecto

from

$18.86
Heater Hose Connecto

Dorman – Heater Hose Connector (Part No.800-402)

Heater Hose Connector

from

$17.49
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:
  • 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
See More

Dorman – Heater Hose Connector (sold by each) (Part No.800-401.5)

Heater Hose Connector (sold by each)

from

$42.49
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:
  • 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
See More

Dorman – Heater Hose Connecto (Part No.R3036834787DOR)

Heater Hose Connecto

from

$33.48
Heater Hose Connecto

Dorman – Heater Hose Connecto (Part No.R3036834786DOR)

Heater Hose Connecto

from

$32.04
Heater Hose Connecto

Dorman – Heater Hose Connecto (Part No.R30361604038DOR)

Heater Hose Connecto

from

$28.53
Heater Hose Connecto