Delphi Suspension Trailing Arm P/N:TC7340
Delphi TC7558 rear left trailing arm for the 2009-2013 Subaru Forester and other vehicles locates the rear left wheel as the suspension moves.
A rear clunk over bumps or uneven rear tire wear can come from a worn suspension trailing arm. A tired rear shock, a loose lateral link or a tire problem can be behind them too, so find the cause before you buy. This listing is one arm; the rear right side is its own part, and the two are normally replaced together, one on each side of the axle.
Along with the 2009-2013 Subaru Forester, this is a direct-fit replacement trailing arm for the 2008-2014 Subaru Impreza and the 2013-2014 Subaru WRX.
Fit and size
Build and materials
Interchange: 523-037 · 20250 AJ010 · 20250 AJ070 · 20250 FG010
KSC5926 · CA72513 · CA72513PR · RK643598 · CMS801049 · GS801049
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
Is this the right WRX trailing arm for the 2013-2014 Subaru WRX?
Yes. Delphi TC7558 is the rear left trailing arm for the 2013-2014 Subaru WRX. If your car is not named here, look it up in the Vehicles it fits section on this page.
How is the Delphi TC7558 trailing arm tested?
Each arm gets 100% crack detection and ultrasonic flaw detection. Delphi tests its parts below -40 °C and above 120 °C, with 720 hours of salt spray exposure.
Can I keep driving on a worn rear left trailing arm?
No. A worn suspension arm can affect how the rear wheel is held, so have the rear suspension inspected and the arm replaced promptly.
What material is the Delphi TC7558 trailing arm?
The Delphi TC7558 arm is steel, with anti-corrosion protection applied to the part.
Does Delphi TC7558 interchange with 523-037?
Yes. 523-037 is one of the numbers this Delphi TC7558 rear left trailing arm replaces.
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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.