Delphi TC6786 Suspension Control Arm - Rear Left Upper Forward

OE-Style Rear Left Upper Forward Control Arm

Delphi TC6786 is a suspension control arm for the rear left upper forward position on select BMW applications. Built with aluminum construction and a casting/forged design, it is shaped for direct replacement use on 2008-2013 BMW M3 and 2011 BMW 1 Series M models.

Delphi applies OE-focused dimensional and material analysis to help maintain proper fit and suspension geometry. This rear left upper forward control arm is built to handle demanding temperature extremes and corrosion exposure seen in real-world driving.

Key Features

• Part number: TC6786
• Aluminum construction with gray finish
• Casting/forged design for structural consistency
• Bushings included for service-ready installation
• Non-adjustable straight shape
• Position: rear left upper forward
• Fits 2008-2013 BMW M3, rear left upper forward
• Fits 2011 BMW 1 Series M, rear left upper forward

Detailed Description

Delphi TC6786 is a rear suspension control arm engineered for BMW M3 and BMW 1 Series M fitment in the rear left upper forward location. The aluminum body and casting/forged construction support precise suspension location, while the included bushings help restore a secure mounting interface. Delphi validates its steering and suspension components through extreme temperature testing and extended salt-spray exposure, along with dimensional and material analysis to support OE-level compatibility. This part cross-references Beck/Arnley 102-7967 for the same application.

Common Repair Applications

• Rear suspension noise from worn control arm bushings
• Loose or inconsistent rear-end handling
• Uneven tire wear related to rear suspension geometry
• Clunking or shifting from a fatigued rear control arm
• Restoring alignment stability on BMW M3 and BMW 1 Series M models

Installation Notes and Tips

Install TC6786 in the rear left upper forward position only. Verify bushing condition, mounting points, and alignment settings during replacement. Mounting hardware is not included, so reuse or replace hardware as required by the vehicle service procedure. Because this control arm is non-adjustable, final alignment should be checked after installation.

Quality Assurance

Delphi uses OE-based engineering methods, including dimensional and material analysis, to support fit and function. The part is tested for temperature extremes below -40 degrees C and above 120 degrees C, and it is exposed to 720 hours of salt spray to evaluate corrosion resistance.