Help tighten up a loose, clunky front end with the Delphi control arm and ball joint assembly (TC2974), a front-left upper rearward 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 rearward position on a wide range of Audi models, including the 2009-2012 Audi Q5 — 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 anti-corrosion protection 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 · KSC4339 · 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
