Delphi TC3817 Suspension Ball Joint - Front Upper

Delphi Suspension Ball Joint TC3817 Overview

The Delphi Suspension Ball Joint TC3817 is engineered for reliable suspension performance in select Buick, Cadillac, and Saab models. Designed with durable steel construction and a protective chloroprene rubber dust boot, this ball joint supports smooth steering and suspension articulation.

• Constructed from high-strength steel for durability
• Includes a chloroprene rubber dust boot to protect against contaminants
• Standard suspension grade type for consistent performance
• Comes with mounting hardware, nuts, and washers for bolt-on installation
• Threaded tapered stud with 16.0 mm diameter and 1.106 inch thread length
• Compatible with Buick LaCrosse, Regal, Envision, Cadillac XTS, ELR, Allure, and Saab 9-5 models

Technical Details and Specifications

The Delphi TC3817 suspension ball joint features a black steel body with a width of 81.7 mm and a height of approximately 63.0 mm. It includes a dust boot made from chloroprene rubber (CR) to resist wear from dirt and moisture. The ball joint assembly is non-greasable and does not include a grease fitting, castle nut, or cotter pin, but it does come with mounting hardware, nuts, and washers for secure installation. The stud is tapered with a 0.167 taper per foot and a diameter of 16.0 mm, designed for bolt-on mounting with two mounting holes spaced 84.2 mm apart.

Compatible Vehicles and Applications

This suspension ball joint is compatible with various Buick, Cadillac, and Saab vehicles, including Buick LaCrosse, Regal, Envision, Cadillac XTS, ELR, Allure, and Saab 9-5. The part number TC3817 ensures proper fitment and function for these models, supporting suspension integrity and steering control.

Common Suspension Issues Addressed

• Eliminates excessive play or looseness in suspension joints
• Prevents uneven tire wear caused by worn ball joints
• Reduces steering vibration and noise from damaged joints
• Restores proper suspension alignment and handling
• Protects suspension components from dirt and moisture ingress

Installation Notes and Tips

Installation of the Delphi TC3817 ball joint requires removal of the old ball joint and proper torqueing of the included mounting hardware. Since the ball joint is non-greasable and does not include a grease fitting, no additional lubrication is necessary after installation. Ensure the tapered stud seats fully in the control arm and verify the mounting hole alignment before tightening. Use appropriate tools to avoid damage to the dust boot during installation.

Quality Assurance and Warranty

Delphi suspension components are manufactured to meet OEM standards for fit, form, and function. The TC3817 ball joint undergoes rigorous quality control to ensure durability and performance. While specific warranty details may vary, Delphi typically offers coverage against manufacturing defects to provide confidence in the product's reliability.