Delphi TC6390 Suspension Ball Joint - Front Upper

Delphi TC6390 Front Upper Ball Joint

Delphi TC6390 is a standard replacement suspension ball joint built for front upper applications. It combines a steel body, greaseable design, and a tapered threaded stud to support precise steering and suspension movement in service.

Built from Delphi OE-focused engineering, this front upper ball joint is tested for temperature extremes and salt-spray exposure to help maintain performance in demanding road conditions. It is a bolt-on assembly with a dust boot, castle nut, cotter pin, and mounting hardware specified in the product data.

Key Features

• Front upper suspension ball joint assembly
• Steel construction with black finish
• Greaseable design with grease fitting included
• Dust boot included with chloroprene rubber (CR) material
• Tapered threaded stud for secure suspension connection
• Bolt-on mounting type with four mounting holes
• Standard replacement grade for service work
• Delphi part number TC6390

Detailed Description

Delphi TC6390 is engineered as a front upper suspension ball joint for vehicles that require a standard replacement part with OE-focused dimensional and material analysis. The assembly uses a steel housing, threaded tapered stud, and greaseable service design to support consistent articulation at the suspension pivot point. Delphi’s OE testing approach includes exposure to extreme temperatures and extended salt-spray conditions, helping validate the part for real-world driving environments. This part cross-references MOOG Chassis Products K3082 for the same application. For buyers searching for a front upper ball joint for Honda Civic or similar vehicle applications, Delphi TC6390 offers a direct service replacement option. The Delphi TC6390 part number is also useful when matching an existing suspension component during repair or rebuild work.

Common Repair Symptoms

• Front suspension clunking or popping over bumps
• Excessive play in the steering or front end
• Uneven tire wear caused by worn suspension joints
• Loose or unstable handling during braking or cornering
• Visible boot damage or grease loss at the joint

Installation Notes

Verify vehicle application, mounting style, and stud dimensions before installation. This front upper ball joint uses a bolt-on design with a tapered stud, so proper torque and alignment procedures are important after replacement. Inspect the surrounding control arm and hardware for wear before installing Delphi TC6390, and confirm the grease fitting is serviced according to the vehicle maintenance schedule. Fits 2006-2011 Honda Civic, front upper. Fits 2006-2011 Honda Civic, front upper. Fits 2006-2011 Honda Civic, front upper.

Quality Assurance

Delphi applies OE-based engineering and validation methods to its aftermarket steering and suspension portfolio. TC6390 is built to meet standard replacement expectations with dimensional and material checks intended to support proper fit and dependable service in front suspension repair.