Delphi TC5270 Suspension Ball Joint - Front Upper

Delphi Suspension Ball Joint TC5270 Overview

The Delphi Suspension Ball Joint TC5270 is engineered for reliable performance in Lexus GS and IS series vehicles. Designed with durable materials and precise dimensions, this suspension ball joint ensures stable steering and suspension control for models including GS300, GS350, GS430, GS450h, GS460, IS250, IS300, and IS350.

• Constructed with alloy steel SAE 5140 ball and carbon steel housing for strength
• Includes castle nut, cotter pin, and mounting hardware for secure installation
• Features a chloroprene rubber dust boot to protect against contaminants
• Bolt-on mounting type with three mounting holes and specific bolt lengths
• Compatible with Lexus GS and IS series models for direct replacement

Technical Specifications and Features

The TC5270 suspension ball joint from Delphi is built with a 103 mm length and 100.3 mm width, providing precise fitment for the specified Lexus models. The ball stud has a 14.0 mm thread diameter and a stud thread length of 25.0 mm, secured with a castle nut and cotter pin to prevent loosening. The dust boot is made from durable chloroprene rubber, offering protection against dirt and moisture to extend the joint's service life. This assembly does not include grease fittings or bushings but comes with all necessary mounting hardware for a straightforward bolt-on installation.

Compatible Lexus Models and Applications

This Delphi ball joint TC5270 is compatible with a range of Lexus vehicles, including GS300, GS350, GS430, GS450h, GS460, IS250, IS300, and IS350. It is designed to replace worn or damaged suspension ball joints, restoring proper suspension geometry and steering response. The part number TC5270 ensures exact fitment and performance for these models, making it a reliable choice for suspension repairs.

Common Issues Addressed by the TC5270 Ball Joint

• Excessive play or looseness in the suspension system
• Uneven tire wear caused by misaligned suspension components
• Clunking or knocking noises during steering or over bumps
• Reduced steering responsiveness and vehicle stability
• Damaged or torn dust boots allowing dirt ingress

Installation Notes and Tips

Installation of the Delphi TC5270 ball joint requires removal of the old ball joint and proper torqueing of the included castle nut and cotter pin to secure the stud. The bolt-on mounting type with three mounting holes simplifies alignment during installation. Ensure the dust boot is properly seated to maintain protection. This ball joint is not greaseable, so no additional lubrication is necessary beyond factory specifications.

Quality Assurance and Warranty

Delphi manufactures the TC5270 suspension ball joint to meet OEM standards for durability and fitment. The use of SAE 5140 alloy steel and carbon steel materials ensures structural integrity under normal operating conditions. The product includes mounting hardware and protective dust boot for comprehensive replacement. Warranty details should be confirmed with the point of purchase or Delphi directly, as coverage may vary.