Delphi TC2978 Suspension Control Arm - Front Left Rearward Lower

Delphi Suspension Control Arm for Mercedes-Benz E-Class

The Delphi TC2978 suspension control arm is engineered for precise fitment on select Mercedes-Benz E-Class models, including the E250, E350, E400, and E550. Designed to maintain suspension geometry and improve vehicle handling, this control arm is a reliable replacement part for front left rearward lower suspension positions.

• Constructed from durable steel and aluminum for strength and corrosion resistance
• Features a straight shape with dimensions: 364.0 mm length, 80.0 mm width, and 90.0 mm height
• Includes black rubber and aluminum bushings to reduce vibration and noise
• Ball joint mounting type is press-in; ball joint not included
• Standard replacement grade with casting and forged construction for durability

Durable Construction and Design Details

The Delphi TC2978 suspension control arm combines steel and aluminum materials to balance strength and weight. Its casting and forged construction methods ensure structural integrity under typical driving stresses. The included rubber and aluminum bushings provide effective vibration damping, while the black bushing color complements the silver finish of the arm. This control arm is designed specifically for the front left rearward lower position on Mercedes-Benz E250, E350, E400, and E550 models, ensuring proper suspension alignment and performance.

Common Applications and Problem Resolution

• Replaces worn or damaged front left rearward lower suspension control arm
• Addresses issues such as uneven tire wear caused by suspension misalignment
• Reduces clunking noises and vibrations from deteriorated bushings
• Restores proper steering response and vehicle stability
• Improves overall suspension performance and ride quality

Installation Notes and Tips

Installation of the Delphi TC2978 control arm requires removal of the existing front left rearward lower suspension arm. Note that the ball joint is not included and must be transferred from the original part or purchased separately. Mounting hardware is not included, so ensure all bolts and nuts are inspected and replaced if necessary. Proper torque specifications should be followed to maintain suspension integrity and safety.

Quality Assurance and Warranty

Delphi suspension components meet industry standards for replacement parts, offering reliable performance for Mercedes-Benz E-Class vehicles. The TC2978 control arm is a standard replacement grade part, manufactured with quality materials and tested for durability. While specific warranty details may vary, Delphi typically provides coverage against manufacturing defects to ensure customer confidence in their suspension components.