Delphi TC504 Suspension Control Arm and Ball Joint Assembly - Front Left Lower

Delphi Suspension Control Arm and Ball Joint Assembly Overview

The Delphi TC504 suspension control arm and ball joint assembly is designed for front left lower suspension applications on select Audi models. Engineered with durable steel construction and integrated rubber and steel bushings, this assembly provides reliable suspension performance for vehicles such as the Audi A6, S4, S6, and 100 Quattro.

• Compatible with Audi 100, 100 Quattro, A6, A6 Quattro, S4, and S6 models
• Front left lower suspension position
• Steel control arm with casting and forged construction
• Includes rubber and steel bushings for vibration dampening
• Pinch-type ball joint stud with 19mm thread diameter and 50mm stud length
• Mounting hardware included for straightforward installation
• Standard replacement grade with a maximum control arm length of 454mm and width of 120mm
• Non-greasable design without grease fittings

Durable Construction and Design Features

The Delphi TC504 control arm assembly is constructed from high-strength steel using a combination of casting and forging processes to ensure structural integrity and longevity. The included rubber and steel bushings help absorb road vibrations and reduce noise, contributing to a smoother ride. The pinch-type ball joint stud is designed for secure attachment and precise steering control. This assembly is finished in black for corrosion resistance and durability. It is a standard replacement part, engineered to meet the original equipment specifications for the front left lower suspension of compatible Audi vehicles.

Applications and Problem Resolution

This suspension control arm and ball joint assembly is intended for use in the front left lower suspension of various Audi models. It addresses common suspension issues such as:

• Worn or damaged control arm bushings causing excessive play or noise
• Ball joint wear leading to steering instability or uneven tire wear
• Corrosion or structural fatigue in the control arm compromising suspension alignment
• Loose or missing mounting hardware affecting suspension performance
• Vibration and harshness due to deteriorated suspension components

Installation Notes and Tips

Installation of the Delphi TC504 control arm assembly requires basic suspension repair tools and mechanical knowledge. Since the part is not pre-greased and does not include grease fittings, no additional lubrication is necessary during installation. Ensure the mounting hole diameter of 15mm aligns correctly with the vehicle’s suspension mounts. Verify the ball joint stud thread diameter of 19mm matches the vehicle specifications. Replacement of mounting hardware is included to facilitate secure attachment. It is recommended to perform a wheel alignment after installation to maintain proper suspension geometry.

Quality Assurance and Warranty

Delphi suspension components are manufactured to meet or exceed OEM standards, providing reliable performance and durability. The TC504 control arm and ball joint assembly is a standard replacement grade part backed by Delphi’s quality control processes. 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.