Locate and control your Audi's front suspension with the Delphi control arm — the TC7776 control arm and ball joint assembly. It's cataloged for the front left upper rearward position and installs as a direct-fit replacement for the listed applications, including the 2017-2022 Audi Q7, 2018-2022 Audi Q5, 2019-2022 Audi A6 Quattro, 2019-2022 Audi Q8 and 2019-2022 Porsche Cayenne. See the Buyer's Guide tab for the full list of Audi and Porsche fitments.
Delphi applies its OE safety technology and expertise to its aftermarket steering and suspension portfolio, backing each part with extensive dimensional and material analysis for close OE compatibility:
- Tested to the extreme: withstands temperatures below -40°C and above 120°C and endures 720 hours of salt spray.
- 100% inspected: every arm goes through crack detection and ultrasonic flaw detection so materials match OE specifications.
- Precision ball studs: machined to micron tolerances for durability and smooth joint operation.
- Robot-welded and protected: robot welding for consistent quality, with anti-corrosion protection applied to each part for corrosion prevention and improved appearance.
Country of origin: Turkey. A worn ball joint or control arm bushing can show up as clunking over bumps, steering wander, or uneven tire wear; if the arm or its integrated ball joint is the cause, this assembly replaces it. Have a wheel alignment performed after installation.
Interchange: 4M0 407 509 B
4M0407509B · KSC4281
