Delphi TC731 Suspension Ball Joint - Front Lower

Delphi Suspension Ball Joint TC731 Overview

The Delphi TC731 suspension ball joint is engineered for reliable performance in Ford, Mazda, and Mercury vehicles, including models like the Escort, Protege, Tracer, and 323. Constructed from durable steel with a gray finish, this standard suspension grade ball joint offers a bolt-on mounting type designed for straightforward installation and dependable fitment.

• Material: Steel construction for strength and durability
• Maximum outside diameter: 1.654 inches (42.0 mm)
• Length: 152 mm
• Includes dust boot made of chloroprene rubber (CR) for protection
• Mounting hardware and nuts included for installation
• Standard suspension grade type, non-adjustable and non-greaseable
• Mounting hole quantity: 2 with 67 mm distance between holes
• Wrench size: 19.0 mm (0.748 inches)
• Bolt-on mounting type with 12 mm mounting bolt shank diameter

Detailed Product Description

The Delphi TC731 suspension ball joint is a complete assembly designed to replace worn or damaged ball joints in select Ford, Mazda, and Mercury vehicles. Its steel construction ensures structural integrity under typical suspension loads, while the included chloroprene rubber dust boot protects the joint from dirt and moisture, extending service life. This ball joint is a standard suspension grade type, meaning it is designed to meet original equipment specifications without adjustability or grease fittings. The bolt-on mounting type with included hardware simplifies installation, making it suitable for models such as the Ford Escort, Mazda Protege, Mercury Tracer, and Mazda 323.

Common Applications and Problem Resolution

• Eliminates suspension noise caused by worn ball joints
• Restores proper steering and suspension alignment
• Prevents uneven tire wear due to joint play
• Improves vehicle handling and stability
• Replaces damaged or torn dust boots to protect joint integrity

Installation Notes and Tips

• Compatible with Ford Escort, Mazda Protege, Mercury Tracer, and Mazda 323 models
• Use a 19 mm wrench for mounting bolts
• Ensure mounting holes align with the 67 mm bolt hole spacing
• Verify dust boot is properly seated to prevent contamination
• Torque mounting hardware to manufacturer specifications

Quality Assurance and Warranty

Delphi suspension components are manufactured to meet or exceed OEM standards. The TC731 ball joint assembly includes mounting hardware and nuts to facilitate proper installation. While specific warranty details vary, Delphi products typically come with a limited warranty covering defects in materials and workmanship. Always consult vehicle service manuals and Delphi documentation for detailed warranty and installation guidance.