HomeSteering > Power Steering Hoses, Pumps, and Related ComponentsDorman 918-323 Power Steering Cooler
Part #: 918-323

Dorman 918-323 Power Steering Cooler

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⚙️ 32 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Chevrolet and GMC, Silverado 1500, Sierra 1500, Cheyenne, Silverado 2500, and Sierra
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Power Steering Cooler for Chevrolet and GMC Trucks

The Dorman 918-323 power steering cooler is designed to maintain optimal fluid temperature in your Chevrolet Silverado 1500, Silverado 2500, GMC Sierra, Sierra 1500, and Cheyenne models. Constructed from durable steel and finished in black, this cooler helps protect your power steering system from overheating during demanding driving conditions.

  • Durable steel construction with black finish for corrosion resistance
  • Overall length of 30.75 inches and width of 3.87 inches for precise fitment
  • Inlet and outlet barb fittings with 0.374 inch inside diameter and 0.65 inch outside diameter
  • Includes power steering cooler, hose, hardline, and clamps for complete installation
  • Compatible with Chevrolet Cheyenne, GMC Sierra, Sierra 1500, Silverado 1500, and Silverado 2500

Detailed Product Description

The Dorman 918-323 power steering cooler is engineered to efficiently dissipate heat from the power steering fluid, helping to extend the life of your power steering pump and hoses. Its steel construction ensures durability under high pressure and temperature conditions, while the black finish provides additional protection against rust and corrosion. The cooler measures 30.75 inches in length, 8.27 inches in height, and 3.87 inches in width, making it a direct replacement for factory-installed coolers on compatible Chevrolet and GMC trucks. The inlet and outlet fittings are barb type with matching inside and outside diameters (0.374 inch inside, 0.65 inch outside) to ensure secure hose connections and prevent leaks.

Common Applications and Problem Resolution

  • Prevents power steering fluid overheating during heavy towing or off-road use
  • Reduces premature wear of power steering pump and hoses
  • Eliminates fluid leaks caused by damaged or corroded coolers
  • Restores proper power steering system cooling for Chevrolet Silverado and GMC Sierra trucks
  • Addresses power steering noise and stiffness related to fluid temperature issues

Installation Notes and Tips

  • Includes all necessary components: power steering cooler, hose, hardline, and clamps
  • Ensure proper orientation of inlet and outlet fittings during installation
  • Inspect existing hoses and clamps for wear and replace if necessary
  • Bleed the power steering system after installation to remove air pockets
  • Consult vehicle service manual for torque specifications and safety precautions

Quality Assurance and Warranty

Dorman power steering coolers are manufactured to meet or exceed OEM specifications for fit, form, and function. The 918-323 part number undergoes rigorous quality control to ensure reliable performance in Chevrolet and GMC trucks. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in material and workmanship. Refer to Dorman’s official warranty policy for complete terms and conditions.

BrandDorman
Part Number918-323
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 32 vehicles. Search below:

YearMakeModelTransmissionLitersCylindersPositionNotes
2013ChevroletSilverado 15004.8LV8N/A
2013GMCSierra 15004.8LV8N/A
2012ChevroletSilverado 15004.8LV8N/A
2012GMCSierra 15004.8LV8N/A
2011ChevroletSilverado 15004.8LV8N/A
2011GMCSierra 15004.8LV8N/A
2010ChevroletSilverado 15004.8LV8N/A
2010GMCSierra 15004.8LV8N/A
2009ChevroletCheyenneN/A
2009ChevroletSilverado 1500Automatic5.3LV8N/A
2009ChevroletSilverado 1500Automatic4.8LV8N/A
2009GMCSierra 1500Automatic5.3LV8N/A
2009GMCSierra 1500Automatic4.8LV8N/A
2008ChevroletCheyenneN/A
2008ChevroletSilverado 15005.3LV8N/A
2008ChevroletSilverado 15006.0LV8N/A
2008ChevroletSilverado 15004.8LV8N/A
2008GMCSierra 15005.3LV8N/A
2008GMCSierra 15006.0LV8N/A
2008GMCSierra 15004.8LV8N/A
2008GMCSierra 15006.2LV8N/A
2007ChevroletCheyenneN/A
2007ChevroletSilverado 15005.3LV8N/A
2007ChevroletSilverado 15006.0LV8N/A
2007ChevroletSilverado 15004.8LV8N/A
2007ChevroletSilverado 25005.3LV8N/A
2007ChevroletSilverado 25004.8LV8N/A
2007GMCSierra5.3LV8N/A
2007GMCSierra 15005.3LV8N/A
2007GMCSierra 15006.0LV8N/A
2007GMCSierra 15004.8LV8N/A
2007GMCSierra 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:

15275715SKTOC020

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