Delphi TC7054 Suspension Control Arm and Ball Joint Assembly - Front Left Lower Rearward

OE-Style Front Left Lower Rearward Control Arm

Delphi TC7054 is a suspension control arm and ball joint assembly for the front left lower rearward position. It is built with an aluminum control arm, a press-in ball joint, and included bushings and dust boot for a complete replacement on select Audi and Porsche applications.

Fits 2019-2023 Audi A8 Quattro, front left lower rearward; fits 2019-2023 Audi e-tron Quattro, front left lower rearward; fits 2022-2023 Audi e-tron S, front left lower rearward; fits 2022-2023 Audi e-tron S Sportback, front left lower rearward; fits 2020-2023 Audi e-tron Sportback, front left lower rearward; fits 2017-2023 Audi Q7, front left lower rearward; fits 2019-2023 Audi Q8, front left lower rearward; fits 2021-2023 Audi RS Q8, front left lower rearward; fits 2020-2023 Audi S8, front left lower rearward; fits 2020-2023 Audi SQ7, front left lower rearward; fits 2020-2023 Audi SQ8, front left lower rearward; fits 2019-2023 Porsche Cayenne, front left lower rearward.

Key Features

• Part number TC7054
• Front left lower rearward suspension control arm and ball joint assembly
• Aluminum control arm construction with casting/forged design
• Pre-greased assembly with bushings, dust boot, and locking nut included
• Press-in ball joint with threaded stud
• Black rubber bushings and chloroprene rubber dust boot
• Uncoated gray finish
• Non-adjustable, non-greaseable design
• Power steering application

Detailed Description

Delphi TC7054 is engineered for the front left lower rearward suspension position on select Audi Q7, Q8, SQ7, SQ8, RS Q8, A8 Quattro, e-tron models, and Porsche Cayenne applications. Delphi applies OE-focused dimensional and material analysis to help match aftermarket fit and function to the original part, while the assembly is tested across extreme temperature ranges and salt-spray exposure for durability. This part cross-references MOOG Chassis Products RK623727 for the same application.

What This Part Helps Address

• Clunking or knocking from the front suspension
• Excessive play in the lower control arm assembly
• Uneven tire wear caused by worn suspension joints or bushings
• Steering wander or reduced front-end stability
• Visible cracking, separation, or wear in the original control arm bushings

Installation Notes

Verify the vehicle position before installation: front left lower rearward. This assembly uses a press-in ball joint and threaded stud, so proper suspension service tools and torque procedures are required. Confirm fitment by year, make, model, and position before ordering. Part number TC7054 is also listed under OE and aftermarket references for select applications.

Quality Assurance

Delphi subjects steering and suspension components to temperature testing below -40 degrees C and above 120 degrees C, along with 720 hours of salt spray exposure. The brand also uses dimensional and material analysis to support OE-level compatibility between original and replacement parts.