Delphi TC1789 Suspension Ball Joint - Front Lower

Delphi TC1789 Front Lower Ball Joint

Delphi TC1789 is a standard replacement suspension ball joint built for front lower applications on select Nissan trucks and SUVs. It is engineered with OE-focused dimensional and material analysis to support proper fitment and consistent steering and suspension performance.

Compatible with 1998-2004 Nissan Frontier and 2000-2004 Nissan Xterra, this front lower ball joint is built for direct replacement service. The Delphi TC1789 includes a dust boot, castle nut, cotter pin, and mounting hardware for the specified application.

Key Features

• Front lower suspension ball joint for select Nissan applications
• Steel construction with black finish
• Dust boot included with chloroprene rubber material
• Tapered stud design with threaded stud connection
• Standard replacement grade for OE-style service
• Mounting hardware, nuts, castle nut, and cotter pin included
• Grease-free design with no grease fitting

Detailed Description

Delphi TC1789 is a suspension ball joint assembly engineered for the front lower position on 1998-2004 Nissan Frontier and 2000-2004 Nissan Xterra. Delphi applies OE-level dimensional and material analysis to help ensure the replacement part matches the original fit and function expected in steering and suspension service. The steel body, tapered stud, and protective dust boot are specified for standard replacement use in everyday driving conditions.

This part cross-references MOOG Chassis Products K80591 and Mevotech Supreme MK80591 for the same application. If you are replacing a worn front lower ball joint on a Nissan Frontier or Nissan Xterra, Delphi TC1789 provides a direct-service option for restoring suspension articulation and steering response.

Common Repair Uses

• Clunking or popping noises from the front suspension
• Excessive play in the front lower control arm area
• Uneven tire wear related to worn suspension joints
• Loose or imprecise steering feel
• Inspection failure caused by ball joint wear or boot damage

Installation Notes and Tips

Install Delphi TC1789 in the front lower position only on the listed Nissan Frontier and Nissan Xterra applications. Verify stud taper, mounting hole alignment, and fastener torque against the vehicle service information before final assembly. Because this part is not greaseable, routine service focuses on inspection of the dust boot and surrounding suspension components.

Quality Assurance

Delphi tests steering and suspension components across extreme temperature and corrosion conditions, including sub-zero cold, high heat, and extended salt-spray exposure. That validation process supports OE-style durability for the Delphi TC1789 and helps maintain consistent performance in front lower suspension service.