Heater Hose for 2005-2009 Chevrolet Uplander & More - Dorman 626-638

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$131.99
MPN: 626-638
UPC: 885484205413
Item Package Quantity: 1
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Dorman - OE Solutions HVAC Heater Hose Assembly P/N:626-638
Dorman - OE Solutions HVAC Heater Hose Assembly P/N:626-638
$131.99

Keep hot coolant flowing to your cabin heater and move past a common factory weak spot with the Dorman heater hose assembly 626-638. This outlet heater hose trades the original's crack-prone plastic T-connector for an upgraded aluminum one. It fits many vehicles, among them the 2005-2009 Chevrolet Uplander, 2005-2009 Pontiac Montana and 2005-2007 Buick Terraza. See the Buyer's Guide tab for the full list and engine details.

Original equipment HVAC heater hose assemblies often fail because the plastic T-connector cracks. This replacement is part of Dorman's OE FIX line, and its aluminum T-connector is designed to help prevent that same failure from happening again. The heater hose routes engine coolant through the heater circuit, and this Dorman hvac heater hose assembly is cataloged for the outlet position.

  • Upgraded material: Aluminum T-connectors add durability.
  • Application specific: Engineered to install and perform like the original heater hoses on the listed applications.
  • Complete replacement: The hoses come with the clamps needed for a straightforward installation.
  • Quality engineering: Designed in the United States and backed by Dorman's decades of automotive aftermarket experience.

A leaking or cracked heater hose can let coolant escape and reduce cabin heat. If this assembly is the source of the problem, it replaces the complete outlet hose section, including the T-connector.

Interchange: 19129957 · 89025001 · 89025015

This part cross-references / interchanges with the following part numbers:

19129957, 89025001, 89025015

Frequently Asked Questions

What does this heater hose assembly do?

It is the outlet heater hose assembly. It routes engine coolant through the heater circuit that warms the cabin, and it uses an aluminum T-connector in place of the original plastic one.

Does this Dorman heater hose come with clamps?

Yes. Dorman includes the clamps needed for installation with the hoses, so the assembly is ready to install.

Why does it use an aluminum T-connector?

Original assemblies often fail from cracks in the plastic T-connector. Dorman upgraded to aluminum for added durability, which is designed to help prevent the same failure.

Which vehicles does part 626-638 fit?

It fits many vehicles, including the 2005-2009 Chevrolet Uplander, 2005-2009 Pontiac Montana and 2005-2007 Buick Terraza. Check the Buyer's Guide tab to confirm your exact vehicle.

What are signs a heater hose may need replacing?

Signs include coolant drips near the hose or T-connector, visible cracks, a falling coolant level or weak heat from the vents. These can have other causes, so diagnose the problem before you replace the hose.