Dodge Chrysler Power Steering Oil Cooler Dorman 918-305 - 1ASTB00010

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This power steering oil cooler is just what you need to bring back the safety and integrity of your vehicle's steering!


  • Standard Duty Power Steering Oil Cooler
  • Replaces dealer part number: 5137721AA
  • Direct replacement
  • Built to strict quality control standards
  • Does NOT fit models with Severe Duty Engine Cooling

This cooler makes a great replacement and has good cost savings over a dealer unit.

Item Condition: New

Attention California Customers:

WARNING:  This product can expose you to chemicals including Lead and Lead Compounds, which are known to the State of California to cause cancer, and birth defects or other reproductive harm.  For more information, go to

Lifetime Warranty

This item is backed by our limited lifetime warranty. In the event this item should fail due to manufacturing defects during intended use, we will replace the part free of charge.

  1. step : Removing the Bumper (0:59)
    • Remove the three push pins from inside each wheel well with a trim tool
    • Remove the 10mm bolt from the corner of the bumper on each side
    • Remove the push pins from the belly pan with the trim tool
    • Remove the 10mm bolts from the belly pan
    • Remove the belly pan
    • Disconnect the side marker light wiring harnesses
    • Disconnect the fog light wiring harness
    • Remove the four push pins from the top of the bumper
    • Pull the bumper forward and off
  2. step : Draining the Power Steering Fluid (3:36)
    • Raise and support the vehicle
    • Twist off the power steering reservoir cap
    • Have a drain pan ready
    • Put the hose of a hand pump into the power steering reservoir
    • Use a paper towel to hold the hose in place
    • Pump the power steering fluid into the drain pan
    • Disconnect the upper hose from the pump and allow the fluid to drain
    • Remove the hose from the power steering reservoir
  3. step : Removing the Steering Fluid Cooler (5:08)
    • Have a drain bucket ready
    • Loosen the two steering hose clamps with pliers
    • Pull the hoses off the steering fluid cooler
    • Allow any remaining fluid to drain
    • Release the steering fluid cooler clips
    • Pull off the steering fluid cooler
  4. step : Installing the Steering Fluid Cooler (6:22)
    • Line up the power steering fluid cooler
    • Close the steering fluid cooler clips
    • Push the hoses onto the cooler
    • Tighten the steering fluid hose clamps with pliers
  5. step : Installing the Bumper (6:52)
    • Line up the bumper
    • Start the four push pins into the top of the bumper
    • Connect the bumper tabs to the fender slots
    • Push in the push pins at the top of the bumper
    • Install the 10mm bolts at each corner of the bumper
    • Push the push pins into the wheel well
    • Connect the fog light wiring harnesses
    • Connect the side marker light wiring harnesses
    • Lift the belly pan into place
    • Install the 10mm bolts for the belly pan
    • Push the push pins into the belly pan
  6. step : Filling the Power Steering Fluid (9:10)
    • Place paper towels around the reservoir
    • Twist off the reservoir cap
    • Use a flashlight to see the fluid levels
    • Fill the reservoir half full with power steering fluid
    • Lower partial weight onto the wheels
    • Start the engine
    • Turn the steering wheel all the way to each side, several times
    • Add fluid and repeat these steps
    • Lower the vehicle to the ground
    • Add power steering fluid
    • Turn the wheel from side to side several times with the engine running
    • Once the power steering system becomes quiet, turn off the engine
    • Fill the reservoir with power steering fluid
    • Twist on the reservoir cap
    • Clean up any fluid
    • Test drive the vehicle

Tools needed for replacement:

    General Tools

  • Jack Stands
  • Drain Pan
  • Floor Jack

  • Materials, Fluids, and Supplies

  • Gloves
  • Power Steering Fluid

  • Pliers, Cutters & misc Wrenches

  • Slip-Joint Pliers

  • Ratchets & Related

  • Ratchet
  • Socket Extensions

  • Sockets - Metric

  • 10mm Socket

  • Specialty Tools

  • Trim Tool Set
  • Hand Pump

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Year Make Model Description
2005-2009Chrysler 300 Chrysler 300 with Standard Cooling Power Steering Oil Cooler
2009Dodge Challenger Dodge Challenger with Standard Cooling Power Steering Oil Cooler
2006-2010Dodge Charger Dodge Charger with Standard Cooling Power Steering Oil Cooler
2005-2008Dodge Magnum Dodge Magnum with Standard Cooling Power Steering Oil Cooler
Only 1 left in stock
Part 1ASTB00010
In Stock

Order must be placed by 4pm ET
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Estimated Arrival Cost

Deliveries made to PO Boxes and FPO may take longer. See our Shipping & Delivery for more information.

Brand #: 918-305