Delphi TC6591 Suspension Control Arm and Ball Joint Assembly - Rear Lower Rearward

Delphi Rear Lower Rearward Control Arm

Delphi TC6591 is a standard replacement suspension control arm and ball joint assembly for select Porsche applications. It is built for the rear lower rearward position and is engineered using Delphi OE-focused dimensional and material analysis for consistent fitment on Porsche 911, Boxster, and Cayman models.

Key Features

• Standard replacement suspension control arm and ball joint assembly
• Rear lower rearward position
• OE-informed design for dimensional compatibility
• Tested for temperature extremes from below -40°C to over 120°C
• Exposed to 720 hours of salt spray during validation
• Delphi TC6591 for Porsche suspension service

Detailed Description

Delphi TC6591 is a rear lower rearward suspension control arm and ball joint assembly made for Porsche 911, Porsche Boxster, and Porsche Cayman fitments. Delphi applies OE engineering methods to its aftermarket steering and suspension portfolio, using dimensional and material analysis to support proper part-to-vehicle matching. The result is a standard replacement component for restoring rear suspension geometry and ball joint function on the listed Porsche models. This part cross-references Beck/Arnley 102-7946 for the same application.

What It Helps Fix

• Rear suspension looseness or instability
• Excessive play from a worn ball joint assembly
• Uneven tire wear related to rear suspension wear
• Noises from worn control arm or joint components
• Alignment issues caused by degraded rear lower rearward hardware

Installation Notes and Tips

• Fits 2007-2012 Porsche 911, rear lower rearward.
• Fits 1997-2012 Porsche Boxster, rear lower rearward.
• Fits 2006-2012 Porsche Cayman, rear lower rearward.
• Confirm the rear lower rearward position before ordering.
• Inspect adjacent suspension bushings, fasteners, and alignment settings during service.
• Verify part number TC6591 against the vehicle’s existing suspension layout.

Quality Assurance

Delphi validates this suspension component through extreme-temperature testing and extended salt-spray exposure to support durability in demanding conditions. OE-focused analysis is used to improve compatibility between the original and replacement part for Porsche 911, Boxster, and Cayman applications.