Delphi TC3973 Suspension Control Arm and Ball Joint Assembly - Front Left Lower

OE-Style Front Left Lower Control Arm

Delphi TC3973 is a front left lower suspension control arm and ball joint assembly built for direct replacement service on select Dodge and Jeep applications. It combines an aluminum control arm, pre-greased components, and included bushings and dust boot to support precise front suspension operation.

Fits 2016-2022 Dodge Durango, front left lower. Fits 2016-2021 Jeep Grand Cherokee, front left lower. Fits 2022 Jeep Grand Cherokee WK, front left lower.

Key Features

• Part number TC3973 for front left lower suspension service
• Aluminum control arm with casting/forged construction
• Ball joint included with press-in mounting and threaded stud type
• Pre-greased design with bushings, dust boot, and mounting hardware included
• Black rubber bushings and chloroprene rubber dust boot
• Premium grade replacement for power steering applications
• Uncoated finish with gray control arm color

Detailed Description

Delphi TC3973 is engineered as a suspension control arm and ball joint assembly for the front left lower position. Delphi applies OE-focused dimensional and material analysis to help maintain proper fit and suspension geometry, while the part is tested for temperature extremes and salt-spray exposure to verify durability in demanding road conditions. This part cross-references Mopar 68282729AC for the same application.

For Dodge Durango and Jeep Grand Cherokee service, TC3973 provides a direct replacement solution that addresses the lower front suspension connection point. The assembly includes bushings, a dust boot, and a locking nut, with a non-adjustable design for straightforward replacement on the specified vehicles.

Common Repair Uses

• Restores worn lower control arm and ball joint function
• Addresses front-end clunking or looseness from suspension wear
• Helps correct steering feel affected by deteriorated bushings
• Replaces damaged or corroded front left lower suspension components
• Supports proper wheel control on Dodge Durango and Jeep Grand Cherokee models

Installation Notes and Tips

Verify the front left lower position before installation and confirm vehicle fitment by year, make, and model. Because the ball joint is press-in and the assembly is non-adjustable, proper suspension alignment should be checked after replacement. Inspect mounting points, fasteners, and surrounding components for wear before final assembly.

Quality Assurance

Delphi builds this assembly using OE-based engineering practices and subjects parts to extreme temperature and corrosion testing to support consistent performance. The TC3973 part number is backed by Delphi’s aftermarket steering and suspension expertise for the listed applications.