Delphi TC1665 Suspension Ball Joint - Front Lower

Delphi TC1665 Front Lower Ball Joint

Delphi TC1665 is a standard replacement suspension ball joint for front lower applications on select Ford and Mazda trucks and SUVs. It is built with a steel body, greaseable design, and a pressed mounting style for OE-style service on the vehicles listed below.

Key Features

• Steel construction with gray finish
• Pressed-in mounting type for front lower suspension use
• Grease fitting included for serviceable lubrication
• Dust boot included with chloroprene rubber material
• Castle nut, cotter pin, nuts, and mounting hardware included
• Standard replacement grade with tapered threaded stud
• OE-focused dimensional and material analysis for fit consistency

Detailed Description

Delphi TC1665 is engineered as a front lower suspension ball joint for 1989-1997 Ford Ranger, 1991-1994 Ford Explorer, 1989-1990 Ford Bronco II, 1994-1997 Mazda B2300, 1994-1997 Mazda B3000, 1994-1997 Mazda B4000, and 1992-1994 Mazda Navajo. This part number, TC1665, uses a pressed installation, a tapered threaded stud, and a greaseable service design to support steering and suspension articulation in the front lower position. Delphi applies OE-based dimensional and material analysis to help maintain proper part-to-vehicle compatibility, and its testing includes extreme temperature exposure and salt-spray durability validation.

This part cross-references MOOG Chassis Products (e.g., K8561T, K8673) for the same application.

What This Part Helps Address

• Front-end looseness or play from a worn lower ball joint
• Clunking or knocking noises from the front suspension
• Uneven tire wear related to suspension joint wear
• Steering wander caused by excess joint movement
• Inspection failure due to worn suspension components

Installation Notes and Tips

Install TC1665 only in the front lower position listed for the vehicle. Because this is a pressed ball joint, proper removal and installation tools are required to service the control arm safely. Verify stud taper, thread size, and orientation before final assembly, and torque fasteners to the vehicle manufacturer’s specifications. After installation, inspect alignment and suspension geometry.

Quality Assurance

Delphi validates steering and suspension parts through OE-focused dimensional and material checks, along with environmental testing that includes sub-zero and high-temperature exposure and extended salt-spray resistance. That testing approach supports consistent fit and durability for the listed Ford and Mazda applications.