Delphi TC4028 Suspension Control Arm and Ball Joint Assembly - Front Left Lower

Front Left Lower Control Arm for Toyota Sequoia and Tundra

Delphi TC4028 is a front left lower suspension control arm and ball joint assembly built for select Toyota Sequoia and Toyota Tundra applications. It combines a stamped steel arm, pre-greased components, and a press-in ball joint to support precise front suspension service on vehicles with power steering.

Key Features

• Fits 2008-2022 Toyota Sequoia, front left lower
• Fits 2007-2021 Toyota Tundra, front left lower
• Stamped steel control arm with painted finish
• Ball joint included with threaded stud and press-in mounting type
• Pre-greased with bushings, dust boot, and mounting hardware included
• Black rubber bushings and chloroprene rubber dust boot
• Clockwise (right) thread direction
• Premium grade construction for OE-style replacement service

Detailed Description

The Delphi TC4028 front left lower control arm assembly is engineered for direct replacement service on Toyota Sequoia and Toyota Tundra models listed in the fitment data. Delphi applies OE-focused dimensional and material analysis to help match the original suspension geometry, while the assembly is tested for temperature extremes and salt-spray exposure to support durability in demanding road conditions. This part cross-references MOOG Chassis Products RK621304 and Mevotech Supreme CMS86136 for the same application.

Built from stamped steel and finished in black paint, the TC4028 includes a pre-greased ball joint, rubber bushings, a dust boot, and mounting hardware. The assembly is configured for the front left lower position and uses a press-in ball joint design with a threaded stud. For Toyota Sequoia and Toyota Tundra owners looking for a front suspension control arm replacement, this part supports restoration of steering response and suspension alignment characteristics.

What It Helps Address

• Front-end clunking or knocking from worn suspension joints
• Uneven tire wear caused by loosened control arm components
• Steering wander or reduced directional stability
• Excess play in the front left lower suspension corner
• Noise from deteriorated bushings or ball joint wear

Installation Notes and Tips

Install the Delphi TC4028 on the front left lower position only. Because this assembly is not adjustable, final alignment should be checked after installation. Verify mounting hole dimensions, bushing dimensions, and ball joint orientation before tightening fasteners to factory specifications. This part is listed for 2008-2022 Toyota Sequoia and 2007-2021 Toyota Tundra applications, so confirm year and position match the vehicle before service.

Quality Assurance

Delphi uses OE-based engineering practices for its steering and suspension portfolio, including dimensional and material analysis plus environmental testing such as extreme temperature exposure and extended salt-spray testing. The TC4028 is built to support OE-style fit and performance for the specified Toyota Sequoia and Toyota Tundra applications.