Dorman 527-055 Suspension Control Arm and Ball Joint Assembly - Front Left Upper Forward

Dorman 527-055 Front Left Upper Control Arm

Dorman 527-055 is a direct replacement suspension control arm and ball joint assembly for specific Audi applications. It is built for the front left upper forward position and is engineered to restore smooth ride quality, directional stability, and predictable steering response.

• Direct replacement for the original equipment control arm and ball joint assembly
• Fits the front left upper forward suspension position
• Steel control arm construction with black finish
• Ball joint is included and installed
• Pre-greased for service-ready installation
• Bushings included with rubber and steel bushing materials
• Mounting hardware included
• Machined ball joint mounting type with threaded stud design

OE-Style Suspension Restoration

This suspension control arm assembly is built for Audi A4, A4 allroad, A4 Quattro, A5, A5 Quattro, A5 Sportback, RS5, RS5 Sportback, S4, and S5 models in the front left upper forward position. Dorman uses an industry-focused evaluation process to help deliver consistent suspension geometry and stable handling characteristics. The part number 527-055 is also a direct cross-reference for Delphi TC3796 for the same application.

Common Problems This Part Can Address

• Front-end clunking or knocking from a worn upper control arm
• Loose or imprecise steering feel
• Uneven tire wear caused by suspension wear
• Directional instability during braking or lane changes
• Excess play from a worn ball joint or deteriorated bushings

Installation Notes

Verify vehicle fitment by year, make, model, and suspension position before installation. This assembly is pre-greased and greaseable fittings are not included, so no additional lubrication point is provided. Mounting hardware is included, and the ball joint is already installed for a more straightforward replacement process. Professional alignment is recommended after suspension work.

Quality Assurance

Dorman designs this control arm and ball joint assembly as a direct OE-style replacement for specific Audi front suspension applications. The part is evaluated to support smooth ride quality, directional stability, and predictable dynamics in normal driving conditions.

Fits 2017-2025 Audi A4, front left upper forward. Fits 2017-2025 Audi A4 allroad, front left upper forward. Fits 2017-2025 Audi A4 Quattro, front left upper forward. Fits 2018-2019 Audi A5, front left upper forward. Fits 2018-2025 Audi A5 Quattro, front left upper forward. Fits 2018-2025 Audi A5 Sportback, front left upper forward. Fits 2018-2019 Audi RS5, front left upper forward. Fits 2021-2025 Audi RS5, front left upper forward. Fits 2019 Audi RS5 Sportback, front left upper forward. Fits 2021-2025 Audi RS5 Sportback, front left upper forward. Fits 2017-2025 Audi S4, front left upper forward. Fits 2018-2025 Audi S5, front left upper forward. Fits 2018-2025 Audi S5 Sportback, front left upper forward.