Tighten up a loose, clunky front end with the Delphi control arm and ball joint assembly (TC2974), a front-left upper unit that locates the wheel and lets the suspension travel while the integrated ball joint allows the steering knuckle to pivot. It's cataloged for the front left upper position on a wide range of Audi and Porsche models, including the 2012-2018 Audi A6, 2012-2018 Audi A6 Quattro, 2009-2012 Audi Q5 and 2015-2020 Porsche Macan — see the Buyer's Guide tab for the full list of applications.
Delphi applies its OE steering and suspension expertise to this aftermarket part:
- OE-level testing: validated below -40°C and above 120°C, with 720 hours of salt-spray exposure.
- Verified materials: 100% crack detection and ultrasonic flaw detection so materials match OE specifications.
- Precision ball studs: studs machined to micron tolerances for durability and smooth joint operation.
- Robot-welded construction with an anti-corrosion protective coating applied to each part.
Worn control arm bushings or a failing ball joint can show up as clunking over bumps, steering wander, or uneven front tire wear. If a worn assembly is the cause, this Delphi replacement addresses it. Sold individually.
Interchange: 8K0 407 509 B · 8K0 407 509J · 8K0 407 509 M · 8K0 407 509 P · 8K0 407 509 R · 101-7514 · 102-7514 · 52-1253 · 522-109
8K0407509B · 8K0407509J · 8K0407509M · 8K0407509P · 8K0407509R · 1017514 · 1027514 · 521253 · 522109 · CA12537 · CB12097 · CB12097PR · CK621123 · K621123 · RK621000 · RK621123 · CMS70143 · CMS70190 · JTC1288
This part cross-references / interchanges with the following part numbers:
8K0 407 509 B, 8K0 407 509J, 8K0 407 509 M, 8K0 407 509 P, 8K0 407 509 R, 101-7514, 102-7514, 52-1253, 522-109, KSC4339, CA12537, CB12097, CB12097PR, CK621123, K621123, RK621000, RK621123, CMS70143, CMS70190, JTC1288
