Delphi TC6399 Suspension Ball Joint - Front Upper

Delphi Suspension Ball Joint for Mercedes-Benz 300D, 380SL, 380SLC

The Delphi TC6399 suspension ball joint is engineered to provide reliable steering and suspension performance for select Mercedes-Benz models. Designed with durable steel construction and a protective dust boot, this ball joint ensures consistent operation under standard suspension conditions.

• Constructed from high-strength steel for durability
• Includes a chloroprene rubber dust boot to protect against contaminants
• Standard suspension grade type suitable for everyday driving
• Comes with mounting hardware, nuts, and washers for secure installation
• Compatible with Mercedes-Benz 300D, 380SL, and 380SLC models

Product Features and Specifications

The Delphi TC6399 suspension ball joint features a 94 mm length and 67 mm width, with a height of 3.15 inches. It includes a threaded stud with a 12.0 mm diameter and a stud thread length of 0.728 inches. The mounting hardware consists of three bolt-on holes with 8.0 mm shank diameter bolts and washers, ensuring a secure fit. The dust boot is made from chloroprene rubber (CR), providing resistance to wear and environmental factors. This ball joint assembly is non-greasable and does not include a grease fitting, castle nut, cotter pin, or bushings.

Application and Compatibility

This suspension ball joint is specifically designed for use with Mercedes-Benz 300D, 380SL, and 380SLC vehicles. The part number TC6399 ensures precise fitment and compatibility with the suspension systems of these models, maintaining proper steering geometry and suspension articulation.

• Restores proper steering control and suspension alignment
• Eliminates clunking or knocking noises from worn ball joints
• Prevents uneven tire wear caused by suspension play
• Improves vehicle handling and ride stability
• Addresses suspension wear due to age or road conditions

Installation Notes and Tips

Installation of the Delphi TC6399 ball joint requires basic suspension knowledge and appropriate tools. The included mounting hardware simplifies the replacement process. Ensure the vehicle is securely lifted and supported before beginning work. Since this ball joint is non-greasable, no additional lubrication is necessary beyond factory specifications. Verify torque specifications for mounting bolts and nuts according to Mercedes-Benz service guidelines.

Quality Assurance and Warranty

Delphi suspension components are manufactured to meet OEM standards for fit, form, and function. The TC6399 ball joint undergoes rigorous quality control to ensure durability and performance. While specific warranty details may vary, Delphi typically offers coverage against defects in materials and workmanship, providing confidence in the product's reliability for Mercedes-Benz 300D, 380SL, and 380SLC applications.