Delphi TC6318PX Suspension Control Arm and Ball Joint Assembly - Front Left Lower

Overview

Delphi Professional+ TC6318PX is a suspension control arm and ball joint assembly built for demanding service conditions. It combines a steel, forged/cast construction with a pre-greased, serviceable design to help maintain alignment and reduce downtime.

Compatible with Ford F-150 and Lincoln Mark LT applications, this assembly is built for the front left lower position and uses an adjustable, press-in ball joint design.

Key Features

• Steel control arm with forged/cast construction for strength under load
• Pre-greased design with serviceable components for longer service life
• Press-in ball joint with threaded stud for secure assembly
• Rubber bushings and chloroprene rubber dust boot for suspension isolation
• Painted black finish and improved design grade
• Mounting hardware included

Detailed Description

The Delphi Professional+ line is aimed at fleet and working vehicles that see frequent use and harsh road exposure. TC6318PX is engineered to minimize axial deflection under load, which helps preserve alignment and handling response while supporting longer suspension life. The serviceable construction also allows the part to be regreased, a practical advantage for high-mileage service intervals.

This part cross-references MOOG Chassis Products CK80404 and Mevotech Supreme CMK80403 for the same application. It is a direct-fit suspension solution for 2004-2008 Ford F-150 and 2006-2008 Lincoln Mark LT front left lower applications. The Delphi TC6318PX is a fitment-focused replacement for buyers looking for a durable chassis component with OE-style serviceability.

Common Issues This Part May Address

• Excessive suspension play or looseness
• Alignment drift after wear in the control arm assembly
• Noisy or deteriorated bushings and ball joint components
• Reduced handling stability under load
• Wear from road debris, moisture, and weather exposure

Installation Notes and Tips

Verify the front left lower application before installation and confirm the threaded stud, press-in ball joint, and adjustable design match the vehicle configuration. Inspect adjacent suspension components, fasteners, and alignment settings during replacement. Because this assembly is built for a specific position, correct orientation is important for proper fit and function.

Quality Assurance

Delphi Professional+ chassis parts are built with premium materials for demanding service and are designed to support extended service life in fleet and working-vehicle use. The serviceable, regreasable design adds long-term maintenance value for suspension repairs.