Delphi TC8394 Suspension Control Arm - Rear Right Upper Forward

OE-Style Rear Right Upper Forward Control Arm

Delphi TC8394 is a suspension control arm built for the rear right upper forward position on select BMW applications. It combines an aluminum arm, rubber bushings, and a painted finish to support precise suspension geometry and consistent ride control.

Designed using Delphi OE-focused dimensional and material analysis, this replacement arm is built to match the original fit and function for BMW 645Ci, 650i, 750i, 750Li, 760i, and 760Li applications.

Key Features

• Part number TC8394
• Rear right upper forward suspension control arm
• Aluminum control arm construction
• Pre-greased with rubber bushings installed
• Painted gray finish
• Standard replacement grade
• Mounting hardware included
• Threaded stud type
• Not adjustable and not greaseable

Detailed Description

Delphi TC8394 is engineered as a direct replacement suspension control arm for the rear right upper forward location. The aluminum construction helps maintain strength while keeping the part aligned with OE-style suspension requirements, and the rubber bushings are pre-installed to support controlled movement and noise isolation. Delphi validates its steering and suspension components through temperature and corrosion exposure testing, including sub-zero and high-heat conditions plus extended salt-spray exposure, to help confirm durability in demanding road environments. This part cross-references MOOG Chassis Products RK622314 for the same application.

Vehicle Fitment

• Fits 2006-2010 BMW 650i, rear right upper forward
• Fits 2006-2008 BMW 750i, rear right upper forward
• Fits 2006-2008 BMW 750Li, rear right upper forward
• Fits 2006-2008 BMW 760Li, rear right upper forward
• Fits 2006 BMW 760i, rear right upper forward
• Fits 2004-2005 BMW 645Ci, rear right upper forward

What It Helps Fix

• Rear suspension looseness or wandering
• Clunking or knocking from worn bushings
• Uneven tire wear caused by worn control arm joints
• Imprecise rear suspension alignment
• Excess movement in the rear right upper forward suspension point

Installation Notes

Verify the rear right upper forward position before installation and compare the original arm length, bushing layout, and mounting points to TC8394. Because this is a standard replacement control arm with pre-installed bushings and included mounting hardware, installation is straightforward for the listed BMW 645Ci, 650i, 750i, 750Li, 760i, and 760Li applications. A professional alignment is recommended after suspension work.

Quality Assurance

Delphi applies OE-based engineering and material analysis to its aftermarket steering and suspension portfolio. TC8394 is tested for temperature extremes and salt-spray exposure to support long-term durability and consistent performance in the rear suspension system.