Keep hot coolant moving to the heater core with the Dorman - OE Solutions HVAC Heater Hose Assembly 626-111. This pre-assembled outlet-side unit pairs the Dorman heater hose fitting with molded hose, and it drops in as a direct replacement for the original heater hose on a wide range of GM trucks and SUVs — including the 1999-2006 Chevrolet Silverado 1500, 2000-2006 Chevrolet Tahoe, 2000-2006 GMC Yukon, and 2002-2006 Cadillac Escalade. See the Buyer's Guide tab for the full list of covered years, makes, and models.
- Durable construction: built to withstand extreme temperature changes and resist cracking and leaking.
- Ideal replacement: directly replaces the original outlet heater hose on the listed vehicle years, makes, and models.
- Cost-effective: delivers original manufacturer quality at a lower cost than a dealer replacement.
- Industry-leading design: professionally engineered by an aftermarket leader in heater hose assemblies.
Signs this outlet heater hose assembly may need replacing include coolant seepage or drips at the hose, a low-coolant condition, or weak cabin heat. If a cracked or leaking original hose is the cause, this assembly replaces it.
Interchange: 18221L · 88412 · 22554 · 15792821
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What is the Dorman heater hose assembly 626-111?
It is a pre-assembled outlet-side HVAC heater hose that carries engine coolant to and from the heater core, replacing the original hose on the listed GM trucks and SUVs.
Does this Dorman heater hose fit my vehicle?
It is a direct replacement for many 1999-2007 GM applications, such as the Chevrolet Silverado 1500, Tahoe, Suburban, GMC Sierra, Yukon, and Cadillac Escalade. Check the Buyer's Guide tab for your exact year and model.
What is this heater hose made to withstand?
It is designed to withstand extreme temperature changes and resist cracking and leaking, helping it match the durability of the stock heater hose assembly.
How do I know my heater hose needs replacing?
Common signs include coolant seepage or drips at the hose, a low-coolant condition, or reduced cabin heat. Diagnose the cause before replacing, since these symptoms can have other sources.
What numbers does this part interchange with?
It cross-references the following numbers: 18221L, 88412, 22554, and 15792821.
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