OE Quality
60-Day Returns

Dorman 918-309 Power Steering Cooler
Power Steering Cooler for Cadillac, Chevrolet, and GMC Vehicles
The Dorman 918-309 power steering cooler is designed to maintain optimal fluid temperature in your vehicle's power steering system. Engineered from durable steel and finished in black, this cooler is compatible with select Cadillac, Chevrolet, and GMC models, including the Escalade, Silverado 1500, and Yukon XL 1500.
- Constructed from robust steel for long-lasting durability
- Overall length of 18.338 inches and width of 7.267 inches for precise fitment
- Black finish to resist corrosion and complement engine bay aesthetics
- Barb-type fittings with 0.216 inch inside diameter and 0.531 inch outside diameter for secure hose connections
- Includes one power steering cooler, one hose, and clamps for installation
Durable Steel Construction and Precise Dimensions
This power steering cooler features a steel body that withstands high temperatures and pressure fluctuations common in power steering systems. Measuring 18.338 inches in length and 7.267 inches in width, it fits seamlessly within the engine compartments of compatible vehicles. The coolerโs inlet and outlet fittings are designed with a 0.216 inch inside diameter and 0.531 inch outside diameter, utilizing barb fittings to ensure a tight, leak-resistant connection with the included hose and clamps. The black finish provides additional protection against rust and wear.
Compatible Vehicles and Applications
The Dorman 918-309 power steering cooler is compatible with a range of Cadillac, Chevrolet, and GMC trucks and SUVs. Specifically, it fits models such as the Cadillac Escalade, Escalade ESV, and Escalade EXT; Chevrolet Avalanche, Cheyenne, Silverado 1500, Suburban 1500, and Tahoe; as well as GMC Sierra, Sierra 1500, Yukon, and Yukon XL 1500. This part is ideal for vehicles requiring efficient power steering fluid cooling to maintain system performance and longevity.
Common Issues Addressed by the Power Steering Cooler
- Overheating of power steering fluid leading to reduced steering performance
- Premature wear of power steering pump due to excessive fluid temperatures
- Fluid degradation causing leaks or system failure
- Increased steering effort or noise during operation
- Potential damage to steering components from insufficient cooling
Installation Notes and Tips
Installation of the Dorman 918-309 power steering cooler requires basic mechanical skills and tools. Ensure the vehicle is safely supported and the power steering system is depressurized before removal of the old cooler. Use the included hose and clamps to secure connections firmly to the barb fittings. Verify all fittings are tight and check for leaks after installation. Proper routing of the cooler and hose is essential to avoid contact with moving parts or excessive heat sources.
Quality Assurance and Warranty
Dorman power steering components are manufactured to meet or exceed OEM specifications. The 918-309 power steering cooler undergoes rigorous quality control to ensure durability and reliable performance. This product is backed by Dormanโs limited warranty, providing coverage against defects in materials and workmanship under normal use.
| Brand | Dorman |
| Part Number | 918-309 |
| Color | Black |
| Fitting Type | Barb |
| Height | 2.007 |
| Inlet Fitting Inside Diameter | 0.216 |
| Inlet Fitting Outside Diameter | 0.531 |
| Length | 18.338 |
| Material | Steel |
| Outlet Fitting Inside Diameter | 0.216 |
| Outlet Fitting Outside Diameter | 0.531 |
| Overall Width | 7.267 in |
| Package Contents | 1 Power Steering Cooler; 1 Hose; Clamps |
This part fits 102 vehicles. Search below:
| Year | Make | Model | Transmission | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2014 | Cadillac | Escalade | Automatic | 6.2L | V8 | N/A | |
| 2014 | Cadillac | Escalade ESV | Automatic | 6.2L | V8 | N/A | |
| 2014 | Chevrolet | Silverado 1500 | Automatic | 5.3L | V8 | N/A | |
| 2014 | Chevrolet | Silverado 1500 | Automatic | 6.2L | V8 | N/A | |
| 2014 | Chevrolet | Suburban 1500 | Automatic | 5.3L | V8 | N/A | |
| 2014 | Chevrolet | Tahoe | Automatic | 5.3L | V8 | N/A | |
| 2014 | GMC | Sierra | Automatic | 5.3L | V8 | N/A | |
| 2014 | GMC | Sierra | Automatic | 6.2L | V8 | N/A | |
| 2014 | GMC | Sierra 1500 | Automatic | 5.3L | V8 | N/A | |
| 2014 | GMC | Sierra 1500 | Automatic | 6.2L | V8 | N/A | |
| 2014 | GMC | Yukon | Automatic | 5.3L | V8 | N/A | |
| 2014 | GMC | Yukon | Automatic | 6.2L | V8 | N/A | |
| 2014 | GMC | Yukon XL 1500 | Automatic | 5.3L | V8 | N/A | |
| 2014 | GMC | Yukon XL 1500 | Automatic | 6.2L | V8 | N/A | |
| 2013 | Cadillac | Escalade | 6.0L | V8 | N/A | ||
| 2013 | Cadillac | Escalade | 6.2L | V8 | N/A | ||
| 2013 | Cadillac | Escalade ESV | Automatic | 6.2L | V8 | N/A | |
| 2013 | Cadillac | Escalade EXT | Automatic | 6.2L | V8 | N/A | |
| 2013 | Chevrolet | Avalanche | 5.3L | V8 | N/A | ||
| 2013 | Chevrolet | Cheyenne | N/A | ||||
| 2013 | Chevrolet | Silverado 1500 | 5.3L | V8 | N/A | ||
| 2013 | Chevrolet | Silverado 1500 | 6.2L | V8 | N/A | ||
| 2013 | Chevrolet | Suburban 1500 | 5.3L | V8 | N/A | ||
| 2013 | Chevrolet | Tahoe | 5.3L | V8 | N/A | ||
| 2013 | GMC | Sierra | 5.3L | V8 | N/A | ||
| 2013 | GMC | Sierra 1500 | 5.3L | V8 | N/A | ||
| 2013 | GMC | Sierra 1500 | 6.2L | V8 | N/A | ||
| 2013 | GMC | Yukon | 5.3L | V8 | N/A | ||
| 2013 | GMC | Yukon | 6.0L | V8 | N/A | ||
| 2013 | GMC | Yukon | 6.2L | V8 | N/A | ||
| 2013 | GMC | Yukon XL 1500 | 5.3L | V8 | N/A | ||
| 2012 | Cadillac | Escalade | 6.0L | V8 | N/A | ||
| 2012 | Cadillac | Escalade | 6.2L | V8 | N/A | ||
| 2012 | Cadillac | Escalade ESV | Automatic | 6.2L | V8 | N/A | |
| 2012 | Cadillac | Escalade EXT | Automatic | 6.2L | V8 | N/A | |
| 2012 | Chevrolet | Avalanche | 5.3L | V8 | N/A | ||
| 2012 | Chevrolet | Cheyenne | N/A | ||||
| 2012 | Chevrolet | Silverado 1500 | 5.3L | V8 | N/A | ||
| 2012 | Chevrolet | Silverado 1500 | 6.2L | V8 | N/A | ||
| 2012 | Chevrolet | Suburban 1500 | 5.3L | V8 | N/A | ||
| 2012 | Chevrolet | Tahoe | 5.3L | V8 | N/A | ||
| 2012 | GMC | Sierra | 5.3L | V8 | N/A | ||
| 2012 | GMC | Sierra 1500 | 5.3L | V8 | N/A | ||
| 2012 | GMC | Sierra 1500 | 6.2L | V8 | N/A | ||
| 2012 | GMC | Yukon | 5.3L | V8 | N/A | ||
| 2012 | GMC | Yukon | 6.0L | V8 | N/A | ||
| 2012 | GMC | Yukon | 6.2L | V8 | N/A | ||
| 2012 | GMC | Yukon XL 1500 | 5.3L | V8 | N/A | ||
| 2011 | Cadillac | Escalade | 6.0L | V8 | N/A | ||
| 2011 | Cadillac | Escalade | 6.2L | V8 | N/A | ||
| 2011 | Cadillac | Escalade ESV | Automatic | 6.2L | V8 | N/A | |
| 2011 | Cadillac | Escalade EXT | Automatic | 6.2L | V8 | N/A | |
| 2011 | Chevrolet | Avalanche | 5.3L | V8 | N/A | ||
| 2011 | Chevrolet | Cheyenne | N/A | ||||
| 2011 | Chevrolet | Silverado 1500 | 5.3L | V8 | N/A | ||
| 2011 | Chevrolet | Silverado 1500 | 6.2L | V8 | N/A | ||
| 2011 | Chevrolet | Suburban 1500 | 5.3L | V8 | N/A | ||
| 2011 | Chevrolet | Tahoe | 5.3L | V8 | N/A | ||
| 2011 | GMC | Sierra | 5.3L | V8 | N/A | ||
| 2011 | GMC | Sierra 1500 | 5.3L | V8 | N/A | ||
| 2011 | GMC | Sierra 1500 | 6.2L | V8 | N/A | ||
| 2011 | GMC | Yukon | 5.3L | V8 | N/A | ||
| 2011 | GMC | Yukon | 6.0L | V8 | N/A | ||
| 2011 | GMC | Yukon | 6.2L | V8 | N/A | ||
| 2011 | GMC | Yukon XL 1500 | 5.3L | V8 | N/A | ||
| 2010 | Cadillac | Escalade | 6.0L | V8 | N/A | ||
| 2010 | Cadillac | Escalade | 6.2L | V8 | N/A | ||
| 2010 | Cadillac | Escalade ESV | Automatic | 6.2L | V8 | N/A | |
| 2010 | Cadillac | Escalade EXT | Automatic | 6.2L | V8 | N/A | |
| 2010 | Chevrolet | Avalanche | 5.3L | V8 | N/A | ||
| 2010 | Chevrolet | Cheyenne | N/A | ||||
| 2010 | Chevrolet | Silverado 1500 | 5.3L | V8 | N/A | ||
| 2010 | Chevrolet | Silverado 1500 | 6.2L | V8 | N/A | ||
| 2010 | Chevrolet | Suburban 1500 | 5.3L | V8 | N/A | ||
| 2010 | Chevrolet | Tahoe | 5.3L | V8 | N/A | ||
| 2010 | GMC | Sierra | 5.3L | V8 | N/A | ||
| 2010 | GMC | Sierra 1500 | 5.3L | V8 | N/A | ||
| 2010 | GMC | Sierra 1500 | 6.2L | V8 | N/A | ||
| 2010 | GMC | Yukon | 6.0L | V8 | N/A | ||
| 2010 | GMC | Yukon | 6.2L | V8 | N/A | ||
| 2010 | GMC | Yukon XL 1500 | 5.3L | V8 | N/A | ||
| 2009 | Cadillac | Escalade | 6.0L | V8 | N/A | ||
| 2009 | Cadillac | Escalade | 6.2L | V8 | N/A | ||
| 2009 | Cadillac | Escalade ESV | Automatic | 6.2L | V8 | N/A | |
| 2009 | Cadillac | Escalade EXT | Automatic | 6.2L | V8 | N/A | |
| 2009 | Chevrolet | Avalanche | Automatic | 5.3L | V8 | N/A | |
| 2009 | Chevrolet | Avalanche | 6.0L | V8 | N/A | ||
| 2009 | Chevrolet | Silverado 1500 | Automatic | 5.3L | V8 | N/A | |
| 2009 | Chevrolet | Silverado 1500 | 6.0L | V8 | N/A | ||
| 2009 | Chevrolet | Silverado 1500 | 6.2L | V8 | N/A | ||
| 2009 | Chevrolet | Suburban 1500 | Automatic | 5.3L | V8 | N/A | |
| 2009 | Chevrolet | Suburban 1500 | 6.0L | V8 | N/A | ||
| 2009 | Chevrolet | Tahoe | Automatic | 5.3L | V8 | N/A | |
| 2009 | Chevrolet | Tahoe | Automatic | 4.8L | V8 | N/A | |
| 2009 | Chevrolet | Tahoe | 6.2L | V8 | N/A | ||
| 2009 | GMC | Sierra | Automatic | 5.3L | V8 | N/A | |
| 2009 | GMC | Sierra 1500 | Automatic | 5.3L | V8 | N/A | |
| 2009 | GMC | Sierra 1500 | 6.0L | V8 | N/A | ||
| 2009 | GMC | Sierra 1500 | 6.2L | V8 | N/A | ||
| 2009 | GMC | Yukon | Automatic | 5.3L | V8 | N/A | |
| 2009 | GMC | Yukon XL 1500 | 5.3L | V8 | N/A | ||
| 2009 | GMC | Yukon XL 1500 | 6.0L | V8 | N/A |
* 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.