Delphi TC1827 Suspension Control Arm and Ball Joint Assembly - Front Left Upper Rearward

Delphi Suspension Control Arm and Ball Joint Assembly Overview

The Delphi TC1827 suspension control arm and ball joint assembly is designed for front left upper rearward positions on select Audi and Volkswagen models. Engineered with durable aluminum construction and natural rubber bushings, this component supports precise suspension movement and vehicle stability.

• Aluminum control arm with casting and forged construction for strength and lightweight performance
• Includes natural rubber bushings to reduce vibration and noise
• Pinch-type ball joint stud with 18.0 mm thread diameter and 47.1 mm stud length
• Standard replacement grade suitable for light suspension applications
• Compatible with Audi A6, A6 Quattro, A8 Quattro, S6, and Volkswagen Phaeton models

Detailed Product Features and Specifications

The Delphi TC1827 control arm assembly features a silver aluminum arm measuring up to 315 mm in length and 53 mm in width, providing a precise fit for the front left upper rearward suspension location. The control arm is constructed using a combination of casting and forging processes to balance durability and weight. Natural rubber bushings are included to absorb road shocks and minimize noise, enhancing ride comfort. The ball joint stud is a pinch type, designed with an 18.0 mm thread diameter and a 47.1 mm stud length, ensuring secure attachment and reliable steering response. This assembly is not greaseable and does not include grease fittings, reflecting its maintenance-free design for standard replacement needs.

Compatible Vehicles and Applications

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

• Audi A6 (front left upper rearward suspension)
• Audi A6 Quattro
• Audi A8 Quattro
• Audi S6
• Volkswagen Phaeton

It is intended for light suspension grade use, making it suitable for standard driving conditions and replacement of worn or damaged control arms in these models.

Common Issues Addressed by This Control Arm Assembly

• Excessive suspension noise or clunking from worn bushings
• Steering instability or wandering due to ball joint wear
• Uneven tire wear caused by misaligned suspension components
• Vibration or harshness transmitted through the suspension
• Reduced handling performance from damaged or fatigued control arms

Installation Notes and Tips

When installing the Delphi TC1827 control arm assembly, ensure the vehicle is securely lifted and supported. Since mounting hardware is not included, reuse existing bolts or acquire manufacturer-specified fasteners. Verify the correct orientation for the front left upper rearward position. No grease fittings are present, so no additional lubrication is required during installation. After installation, a professional wheel alignment is recommended to restore proper suspension geometry and tire wear patterns.

Quality Assurance and Warranty Information

Delphi suspension components meet standard replacement grade specifications, providing reliable performance for compatible Audi and Volkswagen vehicles. While specific warranty details are not provided, Delphi products typically adhere to industry quality standards and undergo rigorous testing to ensure durability and fitment accuracy.