Keep power steering fluid moving back through the system with the Sunsong power steering return line hose assembly, part number 3401220. This gear-to-cooler return line is a direct-fit replacement for the 2003-2009 Lexus GX470 and the 2003-2009 Toyota 4Runner. See the Buyer's Guide tab for engine details.
The assembly sits on the low-pressure return side of the power steering system and carries fluid from the steering gear to the power steering cooler. Sunsong is a vertically integrated manufacturer of automotive fluid transfer hoses and lines, and it builds this part to deliver exact form, fit, and function.
Signs this part may need replacing: fluid seeping or dripping from the return hose or its connections, a reservoir level that keeps dropping, pump noise when the fluid runs low, or visibly corroded tubing. Diagnose the source of any leak before you replace parts.
Interchange: 13401220 · PSH0516 · 4440635020 · 4440635021
This part cross-references / interchanges with the following part numbers:
Which vehicles does the Sunsong 3401220 fit?
It is listed for the 2003-2009 Lexus GX470 and the 2003-2009 Toyota 4Runner. See the Buyer's Guide tab for engine details.
Where does this return line run?
It is the gear-to-cooler return line. It carries power steering fluid from the steering gear to the power steering cooler on the low-pressure return side of the system.
What pressure is this return hose rated for?
Sunsong rates its return hoses for a maximum working pressure of 250 psi. They are suited to low-pressure, high-temperature operation.
Which part numbers does it interchange with?
It cross-references to 13401220, PSH0516, 4440635020 and 4440635021.
How can I tell if my power steering return hose may be failing?
Common signs are fluid leaking from the hose or its fittings, a falling fluid level, pump noise when fluid runs low, or corroded tubing. Confirm where the leak is coming from before replacing parts.
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.
