Delphi TC286 Suspension Control Arm and Ball Joint Assembly - Front Left Lower Rearward or Front Left Upper

Delphi Suspension Control Arm and Ball Joint Assembly Overview

The Delphi TC286 suspension control arm and ball joint assembly is designed for precise fitment on select BMW models, including the 5 Series, 6 Series, and 7 Series. Engineered with durable steel construction and integrated rubber and steel bushings, this assembly supports reliable suspension performance for front left lower rearward and front left upper positions.

• Control arm made from forged and cast steel for strength and durability
• Includes rubber and steel bushings for effective vibration dampening
• Threaded ball joint stud with a 14mm diameter and 60mm length
• Standard replacement grade suitable for light suspension applications
• Black finish with one mounting hole (12.2mm diameter) for secure installation
• Compatible with multiple BMW models such as 524td, 525i, 535i, 740i, M5, and M6

Technical Details and Construction

The Delphi TC286 control arm assembly features a robust steel construction combining casting and forging processes to ensure structural integrity under typical driving conditions. The assembly is designed without grease fittings and is not greaseable, relying on pre-installed rubber and steel bushings to maintain smooth suspension articulation. The ball joint stud is threaded, measuring 14mm in diameter and 60mm in length, providing a secure connection to the vehicle’s suspension system. The control arm measures approximately 375mm in length and 70mm in width, finished in black to resist corrosion.

Compatible BMW Models and Applications

This suspension control arm and ball joint assembly is compatible with a range of BMW vehicles, including the 524td, 525i, 528e, 533i, 535i, 540i, 635CSi, 735i, 735iL, 740i, 750iL, M5, and M6. It is specifically designed for front left lower rearward and front left upper suspension positions, making it suitable for light suspension grade applications where precise handling and ride quality are required.

Common Suspension Issues Addressed

• Worn or damaged control arm bushings causing suspension noise or vibration
• Loose or failing ball joints leading to steering instability
• Corroded or weakened control arm structure affecting alignment
• Uneven tire wear due to suspension component wear
• Reduced ride comfort and handling performance

Installation Notes and Tips

When installing the Delphi TC286 control arm assembly, ensure the vehicle is securely lifted and supported. Verify the correct position as front left lower rearward or front left upper before removal of the old component. Since the assembly is not greaseable and does not include grease fittings, no additional lubrication is required during installation. Torque all mounting hardware to manufacturer specifications to maintain suspension geometry and safety.

Quality Assurance and Warranty

The Delphi TC286 suspension control arm and ball joint assembly is manufactured to meet standard replacement grade requirements, ensuring reliable performance and durability. While specific warranty details are not provided, Delphi products typically adhere to industry standards for quality and fitment, supporting long-term vehicle operation when installed correctly.