Dorman 521-255 Suspension Control Arm - Front Left Lower Forward

Dorman 521-255 Front Left Lower Forward Control Arm

Dorman 521-255 is a suspension control arm built for specific Audi applications with front left lower forward fitment. It is precision-engineered and tested as a direct replacement for the original equipment part on select 2008-2012 Audi A4, A5, A6, A7, Q5, S4, S5, and RS5 models.

Key Features

• Aluminum construction with a coated black finish
• Casting/forged design for OE-style replacement fitment
• Rubber bushing included with black bushing color
• Welded ball joint mounting type with threaded stud type
• No grease fitting, no ball joint installed, and no mounting hardware included
• Overall length: 262.5 mm

Detailed Description

This Dorman suspension control arm, part number 521-255, is made for the front left lower forward position on select Audi vehicles. The aluminum body and coated finish help match the original suspension layout, while the included rubber bushing supports proper arm location and suspension movement. For shoppers searching for a front left lower forward control arm for Audi A4, Audi A5, or Audi Q5 applications, 521-255 provides a direct replacement option built to OE-style dimensions and construction.

This part cross-references Beck/Arnley 102-7561 and Delphi TC2452 for the same application.

What It Helps Address

• Clunking or knocking from the front suspension
• Excessive play in the lower control arm assembly
• Uneven tire wear caused by worn suspension geometry
• Steering wander or reduced front-end stability
• Cracked or deteriorated control arm bushings

Installation Notes and Tips

Verify the vehicle build date before ordering, since some 2012 Audi applications are listed only through 8/15/11. This control arm is for the front left lower forward position only and does not include mounting hardware, so reuse or source the correct fasteners as needed. Because the ball joint is not installed, confirm the service procedure and related suspension components before installation.

Quality Assurance

Dorman tests this control arm for reliable replacement performance on the specified vehicles. The part is engineered to match original equipment requirements for the listed Audi fitments, including 2008-2011 Audi A5 and 2009-2011 Audi Q5 applications, as well as other covered models in the same platform family.