Delphi TC7800 Suspension Control Arm and Ball Joint Assembly - Front Left Lower

Front Left Lower Control Arm Assembly

Delphi TC7800 is a front left lower suspension control arm and ball joint assembly for select Mazda applications. It combines a stamped steel arm, press-in ball joint, and included bushings to restore front suspension geometry on the Mazda 6 and Mazda CX-5.

Built as a standard replacement part, Delphi TC7800 reflects OE-focused dimensional and material analysis for proper fit and consistent suspension performance.

Key Features

• Front left lower suspension control arm and ball joint assembly
• Stamped steel control arm construction with black finish
• Press-in ball joint with grooved stud design
• Pre-greased for initial service
• Bushings included with natural rubber bushing material
• Light suspension grade type
• Three mounting holes for direct replacement fitment
• Standard replacement part for Mazda 6 and Mazda CX-5 front suspension service

Detailed Description

Delphi TC7800 is engineered for the front left lower position and is compatible with 2014-2020 Mazda 6 and 2013-2016 Mazda CX-5. It is built with stamped steel construction, a press-in ball joint, and natural rubber bushings to support proper suspension articulation and alignment retention. Delphi subjects its steering and suspension components to extreme temperature and salt-spray testing, along with dimensional and material analysis, to help ensure OE-style fit and material consistency. This part cross-references Dorman - OE Solutions 520-339 for the same application.

Common Issues This Part May Address

• Clunking or knocking from the front left lower suspension area
• Excessive play in the ball joint or control arm pivot points
• Uneven tire wear related to worn front suspension components
• Steering pull or unstable handling caused by suspension looseness
• Failed inspection due to worn lower control arm bushings or ball joint wear

Installation Notes and Tips

Verify vehicle fitment by year, make, model, and front left lower position before installation. Because the ball joint is press-in and mounting hardware is not included, transfer or source any required hardware and follow the correct service procedure for pressing the joint and torquing fasteners. After installation on a Mazda 6 or Mazda CX-5, a wheel alignment is recommended to confirm suspension geometry.

Quality Assurance

Delphi applies OE-based engineering and testing to its aftermarket steering and suspension portfolio, including temperature cycling below -40 degrees C and above 120 degrees C, plus extended salt-spray exposure. Delphi TC7800 is built to standard replacement specifications for consistent fit and durability in service.