Delphi TC6239 Suspension Control Arm and Ball Joint Assembly - Front Left Lower

Delphi Suspension Control Arm and Ball Joint Assembly Overview

The Delphi TC6239 suspension control arm and ball joint assembly is designed for front left lower suspension applications on select Chevrolet, GMC, and Hummer trucks and SUVs. Engineered with durable steel construction and pre-greased components, this assembly provides reliable medium-grade suspension performance for vehicles like the Chevrolet Silverado 2500 HD and GMC Sierra 3500 HD.

• Pre-greased for immediate installation and reduced maintenance
• Includes rubber bushings and mounting hardware for a complete replacement
• Steel control arm with casting and forged construction for strength
• Press-in ball joint with threaded stud for secure fitment
• Greaseable design to extend service life
• Compatible with front left lower suspension positions

Durable Construction and Design Features

The TC6239 control arm assembly features a robust steel control arm constructed through casting and forging processes, ensuring structural integrity under medium suspension loads. The black finish provides corrosion resistance, while the included rubber bushings help absorb road vibrations and reduce noise. The ball joint is press-in mounted with a threaded stud, allowing for a secure and precise fit. This assembly is pre-greased and greaseable, supporting long-term durability and easier maintenance without the need for additional grease fittings.

Compatible Vehicles and Fitment Details

This suspension control arm and ball joint assembly is compatible with a range of Chevrolet, GMC, and Hummer models, specifically designed for the front left lower position. Compatible vehicles include Chevrolet Avalanche 2500, Silverado 1500 HD, 2500 HD, and 3500 HD series; GMC Sierra 1500 HD, 2500, 2500 HD, and 3500 HD series; Hummer H2; and Chevrolet Suburban 2500 and Yukon XL 2500. The part number TC6239 ensures precise fitment for these models, maintaining factory suspension geometry and performance.

Common Suspension Issues Addressed

• Worn or damaged control arm bushings causing steering instability
• Loose or failing ball joints leading to uneven tire wear
• Corroded or weakened control arm structure affecting suspension alignment
• Excessive suspension noise or vibration from deteriorated components
• Difficulty maintaining proper front suspension geometry

Installation Notes and Tips

Installation of the Delphi TC6239 assembly requires removal of the existing front left lower control arm and ball joint. Since the assembly comes pre-greased and includes mounting hardware, it simplifies the replacement process. Ensure all mounting bolts are torqued to manufacturer specifications. Although grease fittings are not included, the ball joint is greaseable, so periodic lubrication is recommended to extend component life. Professional installation is advised to maintain suspension alignment and safety.

Quality Assurance and Warranty

Delphi suspension components meet standard replacement grade requirements, providing reliable performance for medium-duty suspension applications. The TC6239 assembly undergoes rigorous quality control to ensure durability and fitment accuracy. While specific warranty details vary, Delphi typically offers limited warranties covering defects in materials and workmanship. Refer to Delphi’s official documentation for exact warranty terms.