Delphi TC6311 Suspension Control Arm and Ball Joint Assembly - Front Left Upper

Delphi Suspension Control Arm and Ball Joint Assembly Overview

The Delphi TC6311 suspension control arm and ball joint assembly is designed specifically for the front left upper position on Lexus LS430 models. This pre-greased, aluminum control arm offers a durable and reliable replacement option for maintaining proper suspension geometry and vehicle handling.

• Pre-greased for immediate installation
• Includes rubber bushings and mounting hardware
• Machined ball joint with threaded stud for secure fitment
• Light suspension grade type suitable for standard driving conditions
• Constructed from forged and cast aluminum for strength and reduced weight
• Two mounting holes with 10.4 mm diameter for precise alignment
• Compatible with Lexus LS430 front left upper suspension

Detailed Product Description

The Delphi TC6311 control arm and ball joint assembly is engineered to meet the exact specifications required for the Lexus LS430 front left upper suspension. Featuring a combination of casting and forging in aluminum construction, this control arm balances strength and weight reduction. The assembly comes pre-greased, eliminating the need for additional lubrication during installation. Rubber bushings are included to absorb vibrations and reduce noise, enhancing ride comfort. The ball joint is machined and equipped with a threaded stud, ensuring a secure and precise connection to the suspension system. This standard replacement part is designed for light suspension grade applications, making it suitable for everyday driving conditions.

Common Applications and Issues Addressed

• Restores proper suspension alignment and handling
• Eliminates clunking or knocking noises from worn control arms
• Replaces damaged or corroded control arm assemblies
• Improves steering response and vehicle stability
• Addresses uneven tire wear caused by faulty suspension components

Installation Notes and Tips

Installation of the Delphi TC6311 control arm and ball joint assembly requires basic suspension knowledge and tools. Since the part is pre-greased and includes mounting hardware, it simplifies the replacement process. Ensure the vehicle is securely lifted and supported before removal of the old control arm. Verify the mounting hole alignment and torque specifications according to Lexus LS430 manufacturer guidelines. Although the ball joint is not greaseable, the pre-greased condition ensures proper lubrication for initial use.

Quality Assurance and Warranty

Delphi suspension components are manufactured to meet or exceed OEM standards for fit, form, and function. The TC6311 control arm assembly undergoes rigorous quality control to ensure durability and performance. This part is classified as a standard replacement grade, providing reliable service life consistent with factory specifications. Warranty coverage details should be confirmed with the point of purchase or Delphi directly.