HomeSteering > Power Steering Hoses, Pumps, and Related ComponentsDorman 918-322 Power Steering Cooler
Part #: 918-322

Dorman 918-322 Power Steering Cooler

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⚙️ 38 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Chevrolet, GMC, and Cadillac, Suburban 1500, Tahoe, Yukon, Escalade, Escalade ESV, Escalade EXT, Avalanche, and Yukon XL 1500
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Power Steering Cooler for Cadillac, Chevrolet, and GMC Vehicles

The Dorman 918-322 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, providing reliable performance and protection.

  • Constructed from robust steel for durability and heat dissipation
  • Overall length of 30.75 inches with a width of 3.87 inches
  • Black finish for corrosion resistance and long service life
  • Inlet and outlet fittings with 0.374-inch inside diameter and 0.65-inch outside diameter barb type connections
  • Includes one power steering cooler, hose, hardline, and clamps for installation

Durable Steel Construction and Precise Fitment

The Dorman 918-322 power steering cooler features a steel construction that effectively dissipates heat generated by the power steering fluid, helping to prevent overheating and maintain system efficiency. Its 30.75-inch length and 3.87-inch width provide ample surface area for cooling, while the black finish offers resistance against corrosion. The cooler’s inlet and outlet fittings are designed with 0.374-inch inside diameters and 0.65-inch outside diameters, utilizing barb-type fittings to ensure secure hose connections and leak-free operation.

Compatible Vehicles and Applications

This power steering cooler is compatible with a range of Cadillac, Chevrolet, and GMC vehicles, including the Avalanche, Escalade, Escalade ESV, Escalade EXT, Suburban 1500, Tahoe, Yukon, and Yukon XL 1500. The Dorman 918-322 is an appropriate replacement part for maintaining the power steering system’s cooling efficiency in these models.

Common Issues Addressed by the Power Steering Cooler

  • Prevents power steering fluid overheating during heavy use or towing
  • Reduces risk of premature power steering pump failure
  • Helps maintain consistent steering performance under high temperatures
  • Minimizes fluid degradation caused by excessive heat
  • Protects seals and hoses from heat-related damage

Installation Notes and Tips

Installation of the Dorman 918-322 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, hardline, and clamps to secure the cooler in place, verifying all connections are tight to prevent leaks. Inspect surrounding components for wear during installation and replace as necessary.

Quality Assurance and Warranty

Dorman power steering components are manufactured to meet or exceed OEM specifications. The 918-322 power steering cooler undergoes rigorous quality control to ensure durability and performance. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in material and workmanship for a defined period. Refer to Dorman’s official documentation for exact warranty terms.

BrandDorman
Part Number918-322
ColorBlack
Fitting TypeBarb
Height8.27
Inlet Fitting Inside Diameter0.374
Inlet Fitting Outside Diameter0.65
Length30.75
MaterialSteel
Outlet Fitting Inside Diameter0.374
Outlet Fitting Outside Diameter0.65
Overall Width3.87 in
Package Contents1 Power Steering Cooler; 1 Hose; Hardline; Clamps

This part fits 38 vehicles. Search below:

YearMakeModelTransmissionLitersCylindersPositionNotes
2009ChevroletSuburban 1500Automatic5.3LV8N/A
2009ChevroletTahoeAutomatic5.3LV8N/A
2009ChevroletTahoeAutomatic4.8LV8N/A
2009GMCYukonAutomatic5.3LV8N/A
2009GMCYukonAutomatic4.8LV8N/A
2008CadillacEscalade6.2LV8N/A
2008CadillacEscalade ESV6.2LV8N/A
2008CadillacEscalade EXT6.2LV8N/A
2008ChevroletAvalanche5.3LV8N/A
2008ChevroletAvalanche6.0LV8N/A
2008ChevroletSuburban 15005.3LV8N/A
2008ChevroletSuburban 15006.0LV8N/A
2008ChevroletTahoe5.3LV8N/A
2008ChevroletTahoe6.0LV8N/A
2008ChevroletTahoe4.8LV8N/A
2008ChevroletTahoe6.2LV8N/A
2008GMCYukon5.3LV8N/A
2008GMCYukon6.0LV8N/A
2008GMCYukon4.8LV8N/A
2008GMCYukon6.2LV8N/A
2008GMCYukon XL 15005.3LV8N/A
2008GMCYukon XL 15006.0LV8N/A
2008GMCYukon XL 15006.2LV8N/A
2007CadillacEscalade6.2LV8N/A
2007CadillacEscalade ESV6.2LV8N/A
2007CadillacEscalade EXT6.2LV8N/A
2007ChevroletAvalanche5.3LV8N/A
2007ChevroletAvalanche6.0LV8N/A
2007ChevroletSuburban 15005.3LV8N/A
2007ChevroletSuburban 15006.0LV8N/A
2007ChevroletTahoe5.3LV8N/A
2007ChevroletTahoe4.8LV8N/A
2007GMCYukon5.3LV8N/A
2007GMCYukon4.8LV8N/A
2007GMCYukon6.2LV8N/A
2007GMCYukon XL 15005.3LV8N/A
2007GMCYukon XL 15006.0LV8N/A
2007GMCYukon XL 15006.2LV8N/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:

15186858

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.