OE Quality
60-Day Returns

Dorman 624-894 Automatic Transmission Oil Cooler Hose Assembly - Transmission to Radiator (Lower)
Reliable Automatic Transmission Oil Cooler Hose Assembly
The Dorman 624-894 automatic transmission oil cooler hose assembly is designed to provide a durable and precise fit for Chevrolet and GMC heavy-duty trucks. Engineered to withstand high temperatures and pressures, this hose assembly ensures efficient transmission fluid cooling for optimal vehicle performance.
- Length: 43 inches for proper routing and fitment
- Hose Material: Combination of metal and rubber for strength and flexibility
- End Connections: Male quick disconnect fittings on both ends for secure and easy installation
- Maximum Working Pressure: 100 PSI to handle transmission fluid flow demands
- Operating Temperature Range: -40°F to 329°F suitable for extreme conditions
- Color: Natural hose color for easy identification
- Non-flexible design to maintain hose integrity under pressure
Durable Construction and Precise Fitment
This Dorman transmission oil cooler hose assembly combines metal and rubber materials to provide a robust yet reliable conduit for transmission fluid. The 43-inch length is tailored to fit specific routing requirements on Chevrolet Sierra 2500 HD, Sierra 3500, Silverado 2500 HD, and Silverado 3500 models. Both ends feature male quick disconnect fittings, allowing for straightforward connection to the transmission cooler lines without the need for additional adapters or modifications. The hose is designed to operate within a wide temperature range from -40°F to 329°F, ensuring consistent performance in both cold starts and high-heat conditions.
Compatible Vehicles and Applications
This hose assembly is compatible with the following vehicles:
- Chevrolet Sierra 2500 HD
- Chevrolet Sierra 3500
- Chevrolet Silverado 2500 HD
- Chevrolet Silverado 3500
- GMC Sierra 2500 HD
- GMC Sierra 3500
Common Issues Addressed by This Hose Assembly
- Leaking or cracked transmission oil cooler hoses causing fluid loss
- Overheating transmission due to inefficient fluid cooling
- Damaged or worn quick disconnect fittings leading to poor connections
- Hose failure from exposure to extreme temperatures and pressure
- Replacement of original equipment hoses to restore transmission cooling system integrity
Installation Notes and Tips
Ensure the vehicle is cool and transmission fluid pressure is relieved before removing the old hose assembly. The male quick disconnect fittings on both ends allow for a secure and tool-assisted connection. Verify the hose routing matches the original to prevent kinks or interference with other components. Inspect all connection points for leaks after installation and refill transmission fluid as necessary.
Quality Assurance and Warranty
Dorman manufactures this transmission oil cooler hose assembly to meet or exceed OEM specifications for durability and performance. The hose assembly is tested for pressure and temperature resistance to ensure reliable operation. Please refer to Dorman's warranty policy for specific coverage details related to this part number 624-894.
| Brand | Dorman |
|---|---|
| Part Number | 624-894 |
| Hose Color | Natural |
| Length | 43 |
| End 1 Type | Male quick disconnect |
| End 2 Type | Male quick disconnect |
| Contains Spring | No |
| Maximum Working Pressure | 100 |
| Hose Material | Metal |
| Hose Material | Rubber |
| Flexible | No |
| Maximum Operating Temperature (┬░F) | 329 |
| Minimum Operating Temperature (┬░F) | -40 |
| Package Contents | 1 transmission line |
This part fits 8 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2002 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | Transmission to Radiator (Lower) | |
| 2002 | Chevrolet | Silverado 3500 | 6.6L | V8 | Transmission to Radiator (Lower) | |
| 2002 | GMC | Sierra 2500 HD | 6.6L | V8 | Transmission to Radiator (Lower) | |
| 2002 | GMC | Sierra 3500 | 6.6L | V8 | Transmission to Radiator (Lower) | |
| 2001 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | Transmission to Radiator (Lower) | |
| 2001 | Chevrolet | Silverado 3500 | 6.6L | V8 | Transmission to Radiator (Lower) | |
| 2001 | GMC | Sierra 2500 HD | 6.6L | V8 | Transmission to Radiator (Lower) | |
| 2001 | GMC | Sierra 3500 | 6.6L | V8 | Transmission to Radiator (Lower) |
* 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.