OE Quality
60-Day Returns

Dorman 626-645 HVAC Heater Hose Assembly
Overview of Dorman HVAC Heater Hose Assembly 626-645
The Dorman HVAC Heater Hose Assembly 626-645 is designed specifically for Dodge Durango models, providing reliable coolant flow within the heating system. This molded assembly combines durable rubber and aluminum materials to ensure long-lasting performance under typical operating conditions.
- Constructed with a combination of aluminum and rubber for durability
- Natural color with protective sleeve attached for added hose protection
- Includes clamps for secure attachment at all connection points
- Molded branched hose assembly with two branches for efficient coolant routing
- Compatible with Dodge Durango vehicles requiring a heater hose assembly
- Maximum working pressure rated at 100 PSI
- Centerline length of 59 inches for precise fitment
Detailed Product Description
The Dorman 626-645 HVAC Heater Hose Assembly is engineered as a molded branched hose assembly, featuring two branches to facilitate proper coolant distribution in the heating system of Dodge Durango vehicles. The hose combines rubber flexibility with aluminum components to withstand heat and pressure, while the attached protective sleeve helps resist abrasion and environmental damage. Clamps are included for the three hose ends, ensuring secure and leak-free connections. The hose ends vary in inside diameter, including 0.76 inches, 0.88 inches, and 0.74 inches, accommodating specific attachment points within the HVAC system. This assembly is designed without a spring and does not include a coolant hose heat shield, aligning with the original equipment specifications for regular grade applications.
Common Applications and Issues Addressed
- Replacement of worn or cracked heater hoses in Dodge Durango HVAC systems
- Resolving coolant leaks caused by damaged or deteriorated hose assemblies
- Restoring proper coolant flow to the heater core for effective cabin heating
- Eliminating overheating issues related to compromised heater hoses
- Maintaining system pressure up to 100 PSI to prevent hose failure
Installation Notes and Tips
- Ensure vehicle compatibility with Dodge Durango models before installation
- Use included clamps to secure all hose ends tightly to prevent leaks
- Inspect surrounding components for wear or damage during replacement
- Verify hose routing matches original equipment to avoid kinks or restrictions
- Check for proper seating of the protective sleeve to maximize hose longevity
Quality Assurance and Warranty
Dorman parts are manufactured to meet or exceed OEM standards, providing dependable performance for HVAC system repairs. The 626-645 heater hose assembly undergoes quality checks to ensure material integrity and fitment accuracy. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship, supporting confidence in the product's durability and reliability.
| Brand | Dorman |
| Part Number | 626-645 |
| Branch Quantity | 2 |
| Centerline Length | 59 |
| Clamps Included | Yes |
| Color | Natural |
| Contains Spring | No |
| Coolant Hose Heat Shield Included | No |
| Coolant Hose Type | Branched |
| End 1 Attachment Type | Clamp |
| End 1 Inside Diameter | 0.76 |
| End 2 Attachment Type | Clamp |
| End 2 Inside Diameter | 88 |
| End 3 Attachment Type | Hose |
| End 3 Inside Diameter | 74 |
| Grade Type | Regular |
| Hose End (1) Outside Diameter (In) | 0.43 in |
| Hose End (2) Outside Diameter (In) | 56 in |
| Hose End (3) Outside Diameter (In) | 45 in |
| Hose Shape | Molded Assembly |
| Material | Aluminum |
| Material | Rubber |
| Maximum Working Pressure | 100 |
| Package Contents | Heater Hose Assembly |
| Protective Sleeve Attached | Yes |
| Thermostatically Controlled | No |
This part fits 3 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2003 | Dodge | Durango | 5.9L | V8 | N/A | Fuel Line - Please ensure proper fitment by checking dimensions and compatibility before installing. |
| 2002 | Dodge | Durango | 5.9L | V8 | N/A | Fuel Line - Please ensure proper fitment by checking dimensions and compatibility before installing. |
| 2001 | Dodge | Durango | 5.9L | V8 | N/A | Fuel Line - Please ensure proper fitment by checking dimensions and compatibility before installing. |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.