Delphi TC7851 Suspension Control Arm and Ball Joint Assembly - Front Right Lower Rearward

Delphi Suspension Control Arm and Ball Joint Assembly Overview

The Delphi TC7851 suspension control arm and ball joint assembly is engineered for precise fitment on select Mercedes-Benz models, including the C300, C350e, CLS450, E300, E400, and E450. Designed with durable aluminum construction and natural rubber bushings, this front right lower rearward control arm ensures reliable suspension performance and handling.

• Aluminum control arm with casting and forged construction for strength and durability
• Includes natural rubber bushings for effective vibration dampening
• Threaded ball joint stud measuring 1.04 inches (26.5 mm) in length
• Silver finish control arm with a maximum width of 4.29 inches (109.0 mm) and length of 16.5 inches (419.0 mm)
• Mounting hardware included for straightforward installation
• Non-greaseable design without grease fittings or pre-greasing

Detailed Product Description

The Delphi TC7851 suspension control arm and ball joint assembly is specifically designed for the front right lower rearward position on various Mercedes-Benz vehicles such as the C300, C350e, CLS450, E300, E400, and E450. Constructed from lightweight yet robust aluminum using a combination of casting and forging processes, this control arm offers a balance of strength and weight savings. The assembly includes natural rubber bushings that help absorb road vibrations and reduce noise, contributing to a smoother ride quality.

The ball joint features a threaded stud type with a length of 1.04 inches (26.5 mm), ensuring secure attachment and compatibility with the vehicle’s suspension system. The control arm’s dimensions—maximum width of 4.29 inches (109.0 mm) and length of 16.5 inches (419.0 mm)—are engineered to meet exact OEM specifications. The silver color finish provides corrosion resistance and a clean appearance under the vehicle.

Common Applications and Problem Resolution

• Replacement for worn or damaged front right lower rearward suspension control arms on Mercedes-Benz C300, C350e, CLS450, E300, E400, and E450
• Addresses issues such as uneven tire wear caused by faulty bushings or ball joints
• Corrects suspension misalignment and improves vehicle handling stability
• Eliminates clunking or knocking noises from the front suspension area
• Restores proper suspension geometry for enhanced safety and ride comfort

Installation Notes and Tips

Installation of the Delphi TC7851 control arm assembly should be performed by a qualified technician familiar with Mercedes-Benz suspension systems. Since the assembly is not greaseable and does not include grease fittings, no additional lubrication is required during installation. Verify that the mounting hardware is securely fastened to OEM torque specifications. It is recommended to perform a wheel alignment after installation to ensure optimal suspension performance and tire wear.

Quality Assurance and Warranty

Delphi suspension components are manufactured to meet or exceed OEM standards for fit, form, and function. The TC7851 control arm and ball joint assembly undergoes rigorous quality control to ensure durability and reliability. While specific warranty details are not provided here, Delphi typically offers limited warranties on suspension parts covering defects in materials and workmanship. Consult product documentation or authorized sources for exact warranty terms.