Delphi TC5818 Suspension Control Arm and Ball Joint Assembly - Front Left Lower

Delphi Suspension Control Arm and Ball Joint Assembly Overview

The Delphi TC5818 suspension control arm and ball joint assembly is designed for front left lower suspension applications on select Buick, Cadillac, Oldsmobile, and Pontiac models. This pre-greased, stamped steel control arm provides a reliable replacement option for maintaining proper suspension geometry and vehicle handling.

• Pre-greased for immediate installation
• Includes rubber bushings and mounting hardware
• Stamped steel construction with black finish
• Bolt-in ball joint with threaded stud
• Compatible with front left lower suspension positions

Detailed Product Features and Specifications

The TC5818 control arm assembly features a stamped steel construction that ensures durability while maintaining a lightweight profile suitable for light suspension grade applications. The assembly comes pre-greased, eliminating the need for additional lubrication during installation. Rubber bushings are included to reduce vibration and noise, enhancing ride comfort. The ball joint is bolt-in type with a threaded stud measuring 12 mm in diameter and 87 mm in length, designed for secure mounting. This assembly includes two mounting holes with a diameter of 14.2 mm, and all necessary mounting hardware is provided for a straightforward replacement process. The control arm measures approximately 462 mm (18.189 inches) in length and 100 mm (3.937 inches) in width, finished in black for corrosion resistance.

Compatible Vehicle Applications

This Delphi suspension control arm and ball joint assembly is compatible with the following vehicles:

• Buick Aurora
• Cadillac DeVille, Seville
• Oldsmobile Aurora
• Pontiac Bonneville, LeSabre, Park Avenue, Riviera

Ensure compatibility by verifying the front left lower suspension position and part number TC5818 before installation.

Common Suspension Issues Addressed

• Excessive suspension noise or clunking from worn bushings or ball joints
• Uneven tire wear due to misaligned control arms
• Reduced steering responsiveness or vehicle wandering
• Vibration or instability during cornering
• Loose or damaged suspension components affecting ride quality

Installation Notes and Tips

Installation of the Delphi TC5818 control arm assembly requires basic suspension tools and mechanical knowledge. Since the part is pre-greased and includes mounting hardware, preparation time is minimized. It is recommended to inspect related suspension components during replacement and perform a wheel alignment after installation to ensure proper handling and tire wear. The bolt-in ball joint design allows for straightforward mounting without the need for press tools.

Quality Assurance and Warranty

Delphi suspension components meet standard replacement grade specifications to provide reliable performance and durability. The TC5818 assembly is manufactured to OEM standards, ensuring fit and function for compatible Buick, Cadillac, Oldsmobile, and Pontiac models. While specific warranty details may vary, Delphi typically offers limited warranties covering defects in materials and workmanship. Consult product documentation or authorized sources for exact warranty terms.