Delphi TC479 Suspension Control Arm and Ball Joint Assembly - Front Right Upper

Delphi Suspension Control Arm and Ball Joint Assembly Overview

The Delphi TC479 suspension control arm and ball joint assembly is designed for precise fitment on select BMW models. Engineered with durable steel construction and machined ball joint mounting, this front right upper control arm supports reliable suspension performance for vehicles like the BMW 735i, 740i, and 850Ci.

• Compatible with BMW 735i, 735iL, 740i, 740iL, 750iL, 840Ci, 850Ci, 850CSi, and 850i
• Steel control arm with casting and forged construction for strength
• Machined ball joint mounting with threaded stud (14mm diameter, 65.5mm length)
• Includes mounting hardware for straightforward installation
• Standard replacement grade with natural rubber bushings (not pre-greased or greaseable)
• Control arm dimensions: maximum length 480mm (18.898 inches), maximum width 70mm (2.756 inches)

Detailed Product Description

The Delphi TC479 suspension control arm and ball joint assembly is a direct replacement part designed specifically for the front right upper position on various BMW models, including the 735i and 850CSi. Constructed from durable steel using a combination of casting and forging processes, this control arm provides the necessary rigidity and strength to maintain proper suspension geometry. The ball joint features a machined mounting type with a threaded stud, ensuring secure attachment and compatibility with factory specifications.

This assembly does not come pre-greased and lacks grease fittings, reflecting its design as a maintenance-free component. The natural rubber bushings included help absorb road vibrations and contribute to a smoother ride. Mounting hardware is included to facilitate installation, and the control arm is finished in black for corrosion resistance.

Common Applications and Problem Resolution

• Replaces worn or damaged front right upper suspension control arm on compatible BMW models
• Addresses issues such as uneven tire wear caused by suspension misalignment
• Eliminates clunking or knocking noises from loose or failing ball joints
• Restores proper steering response and vehicle handling
• Corrects suspension geometry to improve ride stability

Installation Notes and Tips

• Ensure vehicle is securely lifted and supported before removal
• Compare new Delphi TC479 part with the original to verify fitment
• Torque all mounting hardware to manufacturer specifications
• Inspect related suspension components during installation for wear
• Alignment check is recommended after installation to maintain proper handling

Quality Assurance and Warranty

Delphi suspension components meet standard replacement grade requirements, providing reliable performance for BMW vehicles. The TC479 control arm assembly undergoes rigorous quality control to ensure dimensional accuracy and material integrity. While specific warranty details may vary, Delphi typically offers coverage against manufacturing defects to support long-term durability and customer confidence.