Keep your Audi's rear suspension located and tight with the Delphi control arm TC3087, a direct-fit rear left upper replacement for the listed applications. It fits many vehicles, among them the 2004-2009 Audi S4, 2002-2009 Audi A4 and 2002-2009 Audi A4 Quattro; see the Buyer's Guide tab for the full list. The control arm locates the wheel and pivots on its ball stud to control wheel travel while helping keep handling precise.
Delphi builds on its OE experience, testing to the extreme for OE performance: parts withstand temperatures below -40°C and over 120°C and endure 720 hours of salt spray, with extensive dimensional and material analysis for close OE-to-aftermarket compatibility.
- Verified integrity: 100% crack detection and ultrasonic flaw detection to confirm materials match OE specifications.
- Consistent build: robot welding for repeatable performance and quality.
- Precision ball studs: machined to micron tolerances for durable, smooth joint operation.
- Corrosion defense: anti-corrosion protection applied to each part for corrosion prevention and enhanced appearance.
If a worn control arm or its ball stud is behind your clunks, uneven tire wear, or loose handling, this replaces it. Wondering about quality? Every unit goes through Delphi's crack and ultrasonic flaw detection.
Interchange: 3R0 505 323 · 8E0 505 323 M
3R0505323 · 8E0505323M · KSC4326 · CA12517 · CA12518 · CK642641 · RK642640 · RK642641 · CMS701118 · CMS701120
This part cross-references / interchanges with the following part numbers:
3R0 505 323, 8E0 505 323 M, KSC4326, CA12517, CA12518, CK642641, RK642640, RK642641, CMS701118, CMS701120
