Delphi Suspension Control Arm and Ball Joint Assembly P/N:TC1346
Delphi TC3831 front left lower control arm with ball joint for the 2016-2020 Audi A4 and other vehicles links the wheel to the body and pivots as the suspension moves. This control arm and ball joint assembly is made for the front left lower rearward position.
A clunk over bumps, uneven tire wear or a loose steering feel can mean the arm or its ball joint is worn. Sway bar links, tie rods, strut mounts and wheel bearings can be behind those signs too, so find the cause before buying.
It fits the 2016-2020 Audi A4, the 2018-2026 Audi A5 Quattro and the 2018-2025 Audi S4, along with many other Audi models. If your Audi is not named here, open the Buyer's Guide tab to look up your exact model and engine.
Fit and size
Build and materials
One control arm with ball joint. Replacing the front pair together is the usual approach, but this listing is a single arm: the front left takes one, and the front right is ordered separately.
Interchange: 526-845
8W0 407 693 A · 8W0 407 693 B · KSC4273 · RK623724 · CMS701133 · X01CJ9993
This part cross-references / interchanges with the following part numbers:
Is the Delphi TC3831 an Audi S4 control arm for the 2018-2025 model years?
Yes. Delphi TC3831 fits the 2018-2025 Audi S4 at the front left lower rearward position.
Is this DELPHI control arm for the left or right side of a 2018-2026 Audi A5 Quattro?
This arm is the front left lower rearward position, and it fits the 2018-2026 Audi A5 Quattro. The front right side is a separate part.
How much temperature and salt spray testing do Delphi control arms get?
Delphi parts withstand temperatures below -40 degrees C and over 120 degrees C, and they are exposed to 720 hours of salt spray.
What are the signs of a worn lower control arm ball joint?
A clunk over bumps, uneven tire wear or a loose steering feel can come from a worn arm or ball joint. Have it inspected promptly, because it is a steering and suspension part.
Does Delphi TC3831 replace part number 8W0 407 693 A?
Yes. 8W0 407 693 A is one of the numbers Delphi TC3831 is listed as replacing; the others are on the Interchange line.
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.