Dorman - OE Solutions Power Steering Cooler P/N:918-338
Dorman 918-321 power steering cooler for the 2008-2010 Ford F-250 Super Duty and other vehicles cools the power steering fluid as it circulates. The Dorman power steering cooler is a replacement for a failed original cooler.
Fluid seeping at the fittings, a cracked body or corrosion on the cooler can mean it has failed. A leak can also come from a hose or clamp, so find where the fluid escapes, looking with the engine off and cool, before replacing anything.
This power steering cooler also fits the 2008-2010 Ford F-350 Super Duty and the 2008-2010 Ford F-450 Super Duty. If your vehicle is not named here, look it up in the "Vehicles it fits" section.
Fit and size
Build and materials
One power steering cooler is in the listing, and the fitment calls for one per vehicle.
Interchange: 7C3Z3D746A
This part cross-references / interchanges with the following part numbers:
Is the Dorman 918-321 power steering cooler right for the 2008-2010 Ford F-350 Super Duty?
Yes. Dorman 918-321 is listed for the 2008-2010 Ford F-350 Super Duty. To check another vehicle, look it up in the "Vehicles it fits" section.
What size are the fittings on this power steering cooler?
The inlet and outlet are both barb fittings with a 5.2 mm inside diameter.
Is anything besides the cooler in the Dorman 918-321 box?
No. The Dorman 918-321 package contains one power steering cooler, and the fitment calls for one per vehicle.
How big is this aluminum power steering cooler?
It measures 22 in long, 9.5 in high, 2 in wide and 1.5 in thick.
What can fluid residue on a power steering cooler mean?
Fluid seepage, a cracked body or corrosion at the fittings can mean the cooler has failed. Look for these with the engine off and cool; a shop can test the cooler.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.