Delphi TC1789 Suspension Ball Joint - Front Lower

Delphi Suspension Ball Joint for Nissan Frontier and Xterra

The Delphi TC1789 suspension ball joint is engineered to provide reliable steering and suspension performance for Nissan Frontier and Xterra models. Constructed from durable steel with a black finish, this standard-grade ball joint assembly is designed to meet OEM specifications and ensure a secure fit.

• Material: High-strength steel construction for durability
• Maximum outside diameter: 1.803 inches (45.8 mm)
• Stud thread diameter: 0.63 inches (16.0 mm) with threaded stud type
• Includes castle nut, cotter pin, and mounting hardware for complete installation
• Dust boot included to protect internal components from contaminants
• Standard suspension grade type suitable for everyday driving conditions
• Mounting hole quantity: 3, with mounting bolt length of 1.488 inches (37.8 mm)
• Wrench size required: 0.748 inches (19.0 mm)

Product Details and Specifications

The Delphi TC1789 suspension ball joint features a robust steel construction finished in black to resist corrosion and wear. It includes a dust boot to shield the ball joint assembly from dirt and debris, extending the service life of the component. The stud is threaded with a diameter of 0.63 inches (16.0 mm) and a thread length of 0.906 inches (23.0 mm), compatible with the included castle nut and cotter pin for secure fastening. This ball joint is designed with three mounting holes and comes with the necessary mounting hardware, including nuts, bolts, and cotter pins, to facilitate a straightforward installation process. The overall height is 3.72 inches (94.5 mm) and width is 74.3 mm, ensuring proper fitment in the suspension system of Nissan Frontier and Xterra vehicles.

Compatible Vehicles and Applications

This suspension ball joint is specifically compatible with Nissan Frontier and Nissan Xterra models. It is intended for use in the front suspension system, providing a critical pivot point between the control arm and steering knuckle. The Delphi TC1789 is suitable for drivers seeking a reliable replacement part that maintains factory suspension geometry and handling characteristics.

• Eliminates excessive play or looseness in the front suspension
• Resolves uneven tire wear caused by worn ball joints
• Addresses clunking or knocking noises during steering or over bumps
• Improves steering response and vehicle stability
• Prevents suspension misalignment and premature component wear

Installation Notes and Tips

Installation of the Delphi TC1789 ball joint requires basic suspension tools and mechanical knowledge. Ensure the vehicle is securely lifted and supported before beginning work. Remove the old ball joint carefully, noting the orientation and hardware used. The included castle nut and cotter pin must be installed to secure the stud properly. Torque specifications should be followed according to the vehicle manufacturer’s guidelines. Since this ball joint is not greaseable, no additional lubrication is necessary beyond the factory-sealed dust boot.

Quality Assurance and Warranty

Delphi suspension components are manufactured to meet or exceed OEM standards, ensuring consistent performance and durability. The TC1789 ball joint assembly undergoes rigorous quality control inspections. While specific warranty details may vary, Delphi typically offers coverage against defects in materials and workmanship. Refer to Delphi’s official documentation for complete warranty information.