Delphi TC6391 front left lower control arm with ball joint for the 2012-2018 Audi A6 and other vehicles links the wheel to the chassis. The Delphi control arm and ball joint assembly replaces a worn arm and joint in one piece, with materials checked to match OE specifications.
- Withstands temperatures below -40 degrees C and over 120 degrees C and 720 hours of salt spray
- 100% crack detection and ultrasonic flaw detection on every control arm
- Ball studs machined to micron tolerances for durability and smooth joint operation
- Robot welding for consistent performance and quality
- Anti-corrosion protection applied to each part for corrosion prevention
Quick facts
- Part: Delphi TC6391 control arm with ball joint
- Also called: control arm and ball joint assembly
- Fits: 2012-2018 Audi A6 and other vehicles
- Position: Front left lower rearward
- Condition: New
A clunk over bumps, uneven front tire wear or a loose steering feel can mean a worn arm or ball joint. With the engine off, look the arm over for cracks, bends or heavy rust. Other suspension parts produce similar noises and wear, so pin down the source before you buy a replacement.
Fits
The vehicles it fits include the 2012-2018 Audi A6 Quattro and the 2012-2018 Audi A7 Quattro, along with many other Audi models; this lower control arm goes on the front left. This listing is one arm. The front right arm is a separate part, and both sides of the axle are normally replaced at the same time.
Specifications
Fit and size
- Position: Front left lower rearward
- Quantity for this position: 1
- Sold as: one arm per listing
Build and materials
- Type: control arm with ball joint
- Welding: robot welded
- Finish: anti-corrosion protection
- Condition: New
In the box
One control arm with its ball joint. The front left position takes one; the front right side is ordered separately.
Interchange: 4G0 407 693 F · 4G0 407 693 H · 4G0 407 693 J · 102-8001 · 522-953
4G0407693L · KSC4335 · CB12253 · RK622832 · CMS70174
This part cross-references / interchanges with the following part numbers:
4G0 407 693 F, 4G0 407 693 H, 4G0 407 693 J, 4G0407693L, 102-8001, 522-953, KSC4335, CB12253, RK622832, CMS70174
Frequently Asked Questions
Is the Delphi TC6391 a control arm for the 2012-2018 Audi A6?
Yes. Delphi TC6391 is the front left lower arm for the 2012-2018 Audi A6. To see whether your own car is covered, look it up in the "Vehicles it fits" section.
Will this suspension arm fit the 2012-2018 Audi A6 Quattro?
Yes. Delphi TC6391 fits the 2012-2018 Audi A6 Quattro in the front left lower rearward position.
How are the ball studs on this control arm made?
Delphi machines the ball studs to micron tolerances for durability and smooth joint operation. The arms themselves are robot welded.
Does this listing include the ball joint?
Yes. This listing is one front left control arm with the ball joint already part of it, so the joint does not need to be bought separately.
Does this control arm replace number 4G0 407 693 F?
Yes. Delphi TC6391 is listed as a replacement for 4G0 407 693 F, along with 4G0 407 693 H, 4G0 407 693 J, 102-8001 and 522-953.
