Delphi TC3440 Suspension Control Arm and Ball Joint Assembly - Front Left Lower

OE-Style Front Left Lower Control Arm

Delphi TC3440 is a front left lower suspension control arm and ball joint assembly built for direct replacement on select Audi and Volkswagen applications. It combines a stamped steel arm, pre-greased ball joint, and included bushings to restore front suspension geometry and steering response.

Fits 2018-2021 Audi Q3, front left lower. Fits 2016-2021 Volkswagen Tiguan, front left lower. Fits 2019 Volkswagen Arteon, front left lower. Fits 2014-2018 Volkswagen Passat, front left lower.

Key Features

• Part number TC3440
• Front left lower suspension control arm and ball joint assembly
• Stamped steel construction with painted black finish
• Pre-greased ball joint with threaded stud and bolt-in mounting type
• Includes bushings, dust boot, mounting hardware, and locking nut
• Non-adjustable design with power steering application
• Clockwise (right) thread direction
• Premium grade replacement built to OE dimensional and material standards

Detailed Description

Delphi TC3440 is engineered as a direct-fit suspension control arm assembly for the front left lower position. It uses stamped steel construction, rubber bushings, and a chloroprene rubber dust boot to support consistent suspension movement while maintaining the original mounting layout. The assembly is pre-greased and includes the ball joint, which helps simplify replacement of a worn lower control arm on the Audi Q3, Volkswagen Tiguan, Volkswagen Arteon, and Volkswagen Passat listed above.

Delphi applies OE-focused dimensional and material analysis to help ensure proper fit and compatibility with the original suspension design. The part is tested across extreme temperature ranges and salt-spray exposure to verify durability under demanding road conditions. This part cross-references Mevotech Supreme CMS701166 for the same application.

Common Problems This Part Can Address

• Clunking or knocking from the front suspension
• Excessive play from worn control arm bushings
• Loose or unstable steering feel
• Uneven tire wear caused by suspension geometry issues
• Ball joint wear at the front left lower suspension point

Installation Notes and Tips

Confirm the front left lower position and verify vehicle fitment before installation. Because this assembly includes the ball joint and bushings, it is suited for replacing a complete worn control arm rather than servicing individual wear components. After installation, a professional wheel alignment is recommended to restore correct suspension angles and tire wear characteristics.

Quality Assurance

Delphi builds this assembly using OE-based engineering standards and validates it through temperature and corrosion testing, including exposure below -40 degrees C, above 120 degrees C, and extended salt-spray testing. The result is a premium replacement control arm assembly intended to match the original suspension layout on the listed Audi and Volkswagen vehicles.