Delphi Suspension Control Arm and Ball Joint Assembly P/N:TC2504
Locate the front wheel and let the steering pivot smoothly with the Delphi control arm and ball joint assembly TC1179. This front lower forward arm is a direct-fit replacement for many vehicles, among them the 2004-2009 Audi S4, 2002-2009 Audi A4 and 2002-2009 Audi A4 Quattro. The arm locates the front wheel and links it to the chassis, while the integrated ball joint lets the suspension and steering pivot smoothly. See the Buyer's Guide tab for the full engine-level fitment.
A worn control arm or a loose ball joint can cause clunking over bumps, wandering steering, and uneven front tire wear — if a failed arm or ball joint is the cause, this arm addresses it. Diagnose the cause before replacing.
Interchange: 8E0 407 151E · 8E0 407 151K · 8E0 407 151 L · 8E0 407 151M · 8E0 407 151 N · 8E0 407 151R · 101-5819 · 102-5819 · 623.3302 · VW-H130 · 520-976
8E0407151E · 8E0407151K · 8E0407151L · 8E0407151M · 8E0407151N · 8E0407151R · 1015819 · 1025819 · 6233302 · VWH130 · 520976 · CB12025 · CK80524 · K80524 · RK80524 · CMK80524 · GK80524 · MK80524 · MK80525 · MK80526 · JTC936
This part cross-references / interchanges with the following part numbers:
Is this the right 2002-2009 Audi A4 control arm?
Yes—it is listed for the 2002-2009 Audi A4, 2002-2009 Audi A4 Quattro and 2004-2009 Audi S4. Check the Buyer's Guide tab for the full list and your exact engine.
What position is this control arm?
It is the front lower forward control arm on the listed applications, with the ball joint built into the assembly.
Is the ball joint included?
Yes. The ball joint is integrated into this assembly, so you replace both the arm and the joint as one unit.
What are signs this control arm may need replacing?
Clunking over bumps, loose or wandering steering, and uneven front tire wear can point to a worn control arm or ball joint. Diagnose the cause before replacing.
How is this control arm built for durability?
The ball studs are machined to micron tolerances for smooth operation, the arms are robot-welded for consistency, and each part receives anti-corrosion protection.
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.