Dorman 626-746 HVAC Heater Hose Assembly - Outlet

Dorman 626-746 HVAC Heater Hose Assembly

Dorman 626-746 is a replacement HVAC heater hose assembly for select Chevrolet Colorado and GMC Canyon models. It is built to match the original hose assembly’s fit and durability, with materials selected to handle repeated temperature swings in the heater circuit.

Key Features

• Replacement HVAC heater hose assembly for the heater outlet circuit
• Fits 2015-2022 Chevrolet Colorado, Outlet, Tee to Core
• Fits 2015-2022 GMC Canyon, Outlet, Tee to Core
• Molded rubber construction for OE-style routing and fit
• Quick disconnect end for the specified connection point
• Black finish with clamps included
• 1 in. inside diameter ends and 10.25 in. centerline length
• Rated for standard replacement use with 50 maximum working pressure and 50 burst pressure

Detailed Description

This Dorman heater hose assembly is engineered for direct replacement service on the heater outlet side of the cooling system. The molded assembly design helps it follow the original routing on 2015-2022 Chevrolet Colorado and 2015-2022 GMC Canyon applications, including the tee-to-core configuration. If you are searching for a Dorman 626-746 heater hose assembly for a Colorado or Canyon heater hose repair, this part is built to restore the factory-style connection without modifying the hose path.

Constructed from rubber and elastomer materials, Dorman 626-746 is made to withstand extreme temperature changes common in HVAC and coolant service. The assembly uses a quick disconnect end at one side and is supplied in black for a clean OE-style appearance. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Problems This Part Can Address

• Cracked or leaking heater hose at the outlet connection
• Restricted coolant flow through a damaged molded hose
• Improper fit from a universal hose repair
• Heat-related hose deterioration in the HVAC circuit
• Loss of heater performance caused by a compromised hose assembly

Installation Notes and Tips

Verify the vehicle’s year, make, model, and outlet-to-core routing before installation. Confirm the quick disconnect connection and molded hose shape match the original part on the vehicle. Inspect mating fittings, clamps, and adjacent coolant lines for wear or corrosion before reassembly. After installation, refill and bleed the cooling system according to the vehicle service procedure to help prevent air pockets.

Quality Assurance

Dorman designs this replacement HVAC heater hose assembly to match the fit and durability of the stock hose assembly on specified vehicles. The part number 626-746 is built as a standard replacement for service on compatible Chevrolet Colorado and GMC Canyon applications.