Delphi TC7331 Suspension Control Arm and Ball Joint Assembly - Front Left Upper

Delphi Suspension Control Arm and Ball Joint Assembly Overview

The Delphi TC7331 suspension control arm and ball joint assembly is engineered for front left upper suspension applications on select Lexus models. Designed with durability and precise fitment in mind, this assembly supports smooth steering and stable handling for Lexus IS200t, IS250, IS300, IS350, and IS F vehicles.

• Pre-greased for immediate installation
• Includes rubber and steel bushings for vibration dampening
• Stamped steel construction ensures strength and reliability
• Press-in ball joint with threaded stud for secure mounting
• Mounting hardware included for complete replacement
• Standard replacement grade for suspension maintenance
• Compatible with front left upper position on specified Lexus models

Technical Details and Construction

The Delphi TC7331 control arm assembly features a stamped steel control arm finished in black, measuring up to 260.2 mm in width and 210.8 mm in length. It is equipped with rubber and steel bushings to reduce noise and absorb road shocks effectively. The ball joint is press-in mounted with a threaded stud type, providing a secure and reliable connection to the suspension system. This assembly is pre-greased, eliminating the need for additional lubrication during installation. Although grease fittings are not included, the design supports maintenance-free operation. The control arm includes two mounting holes with a diameter of 10.2 mm, and all necessary mounting hardware is supplied for a straightforward replacement process.

Compatible Lexus Models and Applications

This suspension control arm and ball joint assembly is specifically compatible with the front left upper suspension position on the following Lexus models: IS200t, IS250, IS300, IS350, and IS F. The part number TC7331 ensures precise fitment and performance tailored to these vehicles, making it a suitable choice for suspension repairs or upgrades.

Common Suspension Issues Addressed

• Worn or damaged control arm bushings causing steering instability
• Loose or failing ball joints leading to uneven tire wear
• Excessive suspension noise or vibration from degraded components
• Misalignment issues affecting vehicle handling and safety
• Corrosion or structural fatigue in original control arm assembly

Installation Notes and Tips

Installation of the Delphi TC7331 control arm assembly requires basic suspension knowledge and appropriate tools. Since the assembly comes 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. Torque all mounting bolts to manufacturer specifications and verify proper alignment after installation. This part is not adjustable and does not include grease fittings, so no additional lubrication is necessary post-installation.

Quality Assurance and Warranty

Delphi suspension components meet standard replacement grade requirements, providing reliable performance for Lexus IS series vehicles. The TC7331 assembly undergoes rigorous quality control to ensure durability and fitment accuracy. While specific warranty details may vary, Delphi typically offers coverage against manufacturing defects to support customer confidence in their suspension parts.