Delphi TC1178 Suspension Control Arm and Ball Joint Assembly - Front Right Upper Forward

Delphi Suspension Control Arm and Ball Joint Assembly Overview

The Delphi TC1178 suspension control arm and ball joint assembly is engineered for front right upper forward suspension applications on select Audi and Volkswagen models. Designed with durable aluminum construction and natural rubber bushings, this component supports precise steering and suspension performance for vehicles like the Audi A4, A6, and Volkswagen Passat.

• Aluminum control arm with casting and forged construction for strength and reduced weight
• Includes natural rubber bushings for effective vibration dampening
• Pinch-type ball joint stud with 16mm thread diameter and 43mm stud length
• Standard replacement grade suitable for light suspension use
• Compatible with front right upper forward position on Audi and Volkswagen models

Technical Details and Features

The TC1178 control arm assembly features a silver aluminum arm measuring approximately 325mm in length and 65mm in width, providing a precise fit for the specified vehicles. The assembly includes one mounting hole with a 10.2mm diameter and is designed without grease fittings or pre-greasing, reflecting a maintenance-free design. The natural rubber bushings help absorb road shocks while maintaining suspension alignment. The pinch-type ball joint stud ensures secure attachment and reliable steering response.

Compatible Vehicles and Applications

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

• Audi A4 and A4 Quattro
• Audi A6 and A6 Quattro
• Audi Allroad Quattro
• Audi RS4 and RS6
• Audi S4 and S6
• Volkswagen Passat

It is designed specifically for the front right upper forward suspension position, making it a direct replacement for worn or damaged control arms in these vehicles.

Common Issues Addressed by This Control Arm Assembly

• Excessive suspension noise or clunking from worn bushings or ball joints
• Uneven tire wear due to misaligned suspension components
• Reduced steering precision or vehicle instability during cornering
• Vibration or harshness transmitted through the suspension
• Failure of original control arm components from corrosion or fatigue

Installation Notes and Tips

Installation of the Delphi TC1178 control arm requires removal of the existing front right upper forward suspension arm. Since mounting hardware is not included, reuse of original bolts or purchase of appropriate fasteners is necessary. The assembly is not adjustable and does not include grease fittings, so no additional lubrication is required during installation. Proper torque specifications should be followed to ensure secure fitment and suspension alignment.

Quality Assurance and Warranty

Delphi suspension components meet standard replacement grade requirements, providing reliable performance for light suspension applications. The TC1178 assembly is manufactured with high-quality aluminum and natural rubber materials to ensure durability and longevity. While specific warranty details are not provided, Delphi products typically adhere to industry standards for replacement parts.