OE Quality
60-Day Returns

Dorman 624-644 Automatic Transmission Oil Cooler Hose Assembly - Inlet or Outlet
Reliable Automatic Transmission Oil Cooler Hose Assembly
The Dorman 624-644 automatic transmission oil cooler hose assembly is designed to provide a durable and precise fit for Ford Excursion, F-250 Super Duty, and F-350 Super Duty models. Engineered with metal construction and quick disconnect ends, this hose assembly ensures efficient transmission fluid cooling under a wide range of operating conditions.
- Natural-colored metal hose with a straight shape for direct routing
- 24-inch length with 0.41-inch inside diameter on both ends
- Quick disconnect fittings on both ends for easy installation and removal
- Maximum working pressure of 100 psi suitable for transmission cooling systems
- Operates reliably between -40°F and 329°F temperature range
- Non-flexible design for stable fluid flow without kinking
- Contains no spring, ensuring consistent hose integrity
Durable Design and Precise Fitment
This Dorman automatic transmission oil cooler hose assembly (part number 624-644) is constructed from metal to withstand the demanding environment of transmission cooling systems. The straight hose shape and natural color provide a straightforward replacement option that matches original equipment specifications. Both ends feature quick disconnect fittings with a 0.41-inch inside diameter, allowing for secure and leak-resistant connections. The hose is designed to handle a maximum working pressure of 100 psi and operate effectively in temperatures ranging from -40°F to 329°F, making it suitable for heavy-duty Ford trucks like the Excursion, F-250 Super Duty, and F-350 Super Duty.
Compatible Vehicles and Applications
- Ford Excursion transmission oil cooler line replacement
- Ford F-250 Super Duty automatic transmission cooling hose
- Ford F-350 Super Duty transmission fluid cooler hose assembly
- Replacement for worn or damaged transmission oil cooler hoses in specified Ford models
- Helps maintain proper transmission fluid temperature and system pressure
Installation Notes and Tips
When installing the Dorman 624-644 hose assembly, ensure the quick disconnect fittings are fully engaged to prevent leaks. The straight hose shape requires proper alignment with the transmission cooler lines to avoid stress or bending. Since the hose is non-flexible and metal, avoid forcing it into tight bends or kinks. Inspect the transmission cooler system for any signs of wear or damage before installation to ensure optimal performance.
Quality Assurance and Warranty
Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 624-644 transmission oil cooler hose assembly undergoes rigorous quality checks to ensure durability and reliability in demanding automotive environments. While specific warranty details are not provided, Dorman products typically come with a limited warranty against defects in material and workmanship.
| Brand | Dorman |
|---|---|
| Part Number | 624-644 |
| Hose Color | Natural |
| Length | 24 |
| End 1 Type | Quick disconnect |
| End 2 Type | Quick disconnect |
| End 1 Inside Diameter | 0.41 |
| End 2 Inside Diameter | 0.41 |
| Contains Spring | No |
| Maximum Working Pressure | 100 |
| Hose Shape | Straight |
| Hose Material | Metal |
| Flexible | No |
| Gasket or Seal Included | No |
| Maximum Operating Temperature (┬░F) | 329 deg. f |
| Minimum Operating Temperature (┬░F) | -40 deg. f |
| Package Contents | 1 transmission line |
This part fits 12 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2004 | Ford | Excursion | Inlet | |
| 2004 | Ford | Excursion | Outlet | |
| 2004 | Ford | F-250 Super Duty | Inlet | |
| 2004 | Ford | F-250 Super Duty | Outlet | |
| 2004 | Ford | F-350 Super Duty | Inlet | |
| 2004 | Ford | F-350 Super Duty | Outlet | |
| 2003 | Ford | Excursion | Inlet | |
| 2003 | Ford | Excursion | Outlet | |
| 2003 | Ford | F-250 Super Duty | Inlet | |
| 2003 | Ford | F-250 Super Duty | Outlet | |
| 2003 | Ford | F-350 Super Duty | Inlet | |
| 2003 | Ford | F-350 Super Duty | Outlet |
* 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.