OE Quality
60-Day Returns

Dorman 624-630 Automatic Transmission Oil Cooler Hose Assembly - Inlet (Passenger Side)
Reliable Automatic Transmission Oil Cooler Hose for Hummer H3 and H3T
The Dorman 624-630 automatic transmission oil cooler hose assembly is designed specifically for Hummer H3 and H3T models. This natural-colored hose combines metal and rubber materials to provide flexibility and durability under a wide range of operating conditions.
- Length: 7 inches for precise fitment
- Ends: Quick disconnect fittings on both ends for easy installation
- Inside diameters: 0.31 inch (End 1) and 0.319 inch (End 2)
- Hose shape: Straight design for direct routing
- Material: Combination of metal and rubber for flexibility and strength
- Maximum working pressure: 500 psi
- Operating temperature range: -40°F to 329°F
- Flexible hose construction without internal spring
Durable Construction and Precise Fitment
The Dorman 624-630 hose assembly is engineered to meet the specific requirements of the Hummer H3 and H3T automatic transmission cooling systems. Its metal and rubber construction ensures resistance to heat and pressure while maintaining flexibility for proper routing. The quick disconnect fittings on both ends allow for straightforward replacement without the need for specialized tools. With a maximum working pressure of 500 psi and an operating temperature range from -40°F to 329°F, this hose assembly is built to withstand the demanding conditions of transmission fluid cooling.
Compatible Applications and Common Uses
This transmission oil cooler hose assembly is compatible with the following vehicles:
- Hummer H3
- Hummer H3T
It is designed to address issues such as:
- Leaking or cracked transmission cooler hoses
- Reduced transmission cooling efficiency
- Fluid contamination due to damaged hoses
- Hose failure from heat or pressure stress
- Difficulty in hose removal or installation due to incompatible fittings
Installation Notes and Tips
When installing the Dorman 624-630 hose assembly, ensure the quick disconnect fittings are securely engaged to prevent leaks. Inspect the transmission cooler connections for any debris or damage before installation. The 7-inch length and straight hose shape facilitate a direct fit without the need for modifications. It is recommended to replace any worn clamps or seals during installation, although this hose assembly does not include gaskets or seals.
Quality Assurance and Warranty Information
Dorman parts are manufactured to meet or exceed OEM specifications for fit, form, and function. The 624-630 transmission oil cooler hose assembly undergoes rigorous quality control to ensure durability and reliability in service. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in material and workmanship. Consult product documentation or the supplier for exact warranty terms.
| Brand | Dorman |
|---|---|
| Part Number | 624-630 |
| Contains Spring | No |
| End 1 Inside Diameter | 0.31 |
| End 1 Type | Quick Disconnect |
| End 2 Inside Diameter | 0.319 |
| End 2 Type | Quick Disconnect |
| Flexible | Yes |
| Gasket or Seal Included | No |
| Hose Color | Natural |
| Hose Material | Metal |
| Hose Material | Rubber |
| Hose Shape | Straight |
| Length | 7 |
| Maximum Operating Temperature (┬░F) | 329 Deg. F |
| Maximum Working Pressure | 500 |
| Minimum Operating Temperature (┬░F) | -40 Deg. F |
| Package Contents | 1 Transmission Line |
This part fits 7 vehicles. Search below:
| Year | Make | Model | Transmission | Position | Notes |
|---|---|---|---|---|---|
| 2010 | Hummer | H3 | Automatic | Inlet (Passenger Side) | |
| 2010 | Hummer | H3T | Automatic | Inlet (Passenger Side) | |
| 2009 | Hummer | H3 | Automatic | Inlet (Passenger Side) | |
| 2009 | Hummer | H3T | Automatic | Inlet (Passenger Side) | |
| 2008 | Hummer | H3 | Automatic | Inlet (Passenger Side) | |
| 2007 | Hummer | H3 | Automatic | Inlet (Passenger Side) | |
| 2006 | Hummer | H3 | Automatic | Inlet (Passenger Side) |
* 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.