Dorman - OE Solutions Power Steering Reservoir P/N:603-939
Dorman 603-847 power steering reservoir for the 2011-2016 Ford F-250 Super Duty and other vehicles holds the fluid supply for the power steering system. This Dorman power steering reservoir replaces a cracked or leaking original.
Fluid seepage around the reservoir or its cap, or a fluid level that keeps dropping, can point to a damaged reservoir. Before you replace it, rule out a leaking hose, pump or steering gear, since fluid loss can start in those places too.
This power steering reservoir is a direct replacement for the 2011-2016 Ford F-250 Super Duty, the 2011-2016 Ford F-350 and the 2011-2016 Ford F-350 Super Duty, and each takes one. It fits and functions like original equipment. Open the "Vehicles it fits" section to check your exact model and engine.
Fit and size
Build and materials
One power steering reservoir and one reservoir cap. Mounting hardware, a mounting bracket and fittings are not included, so plan on new hardware, since the old pieces may not be reusable.
Interchange: RES0161 · 7S4Z3A006A · 9C2Z3E764B · 9C2Z3E764C · CC2Z3E764A · YS4Z3A006AA · YS4Z3A006BA
This part cross-references / interchanges with the following part numbers:
Does the Dorman 603-847 reservoir fit the 2011-2016 Ford F-350 Super Duty?
Yes. Dorman 603-847 is listed for the 2011-2016 Ford F-350 Super Duty, and each truck takes one. If your truck is a different model, look it up in the "Vehicles it fits" section.
Does this power steering reservoir come with a cap?
Yes. It is a complete assembly with the reservoir and its cap. Mounting hardware, a mounting bracket and fittings are not included.
What is the Dorman 603-847 reservoir made of?
Dorman 603-847 is made of plastic with a matte finish. It is built to withstand underhood heat and engine vibration.
How can I check a power steering reservoir for damage?
With the engine off and cool, look for cracks, seepage or fluid residue on the reservoir and around its cap. A shop can pinpoint where a leak starts.
Was this white plastic reservoir tested on a vehicle?
Yes. This reservoir went through on-vehicle testing to confirm a quality fit and long service life.
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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.