Dorman 521-547 Suspension Control Arm - Rear Left Lower Forward

Durable Suspension Control Arm for Audi and Volkswagen Models

The Dorman 521-547 suspension control arm is engineered to provide reliable performance and precise handling for a range of Audi and Volkswagen vehicles. Designed with quality steel construction and a coated finish, this control arm ensures long-lasting durability and corrosion resistance.

• Constructed from robust steel with casting and forging for strength
• Includes a black rubber bushing for effective vibration dampening
• Overall length of 262.5 mm for exact fitment
• Ball joint mounting type is welded with a threaded stud (ball joint not included)
• Coated black finish to resist corrosion and wear
• Compatible with multiple Audi and Volkswagen models including A3, Golf, Jetta, Passat, Tiguan, and TT

Technical Details and Construction

This suspension control arm features a steel construction combining casting and forging methods to meet OEM standards for strength and durability. The black rubber bushing, with an inside diameter of 14.3 mm and outside diameter of 39.6 mm, is included to reduce noise and absorb road shocks. The arm measures 262.5 mm in length, ensuring proper alignment and suspension geometry. The ball joint mounting is welded, designed to accept a threaded ball joint stud, though the ball joint itself is not included. The coated black finish provides protection against rust and environmental damage, extending the service life of the component.

Compatible Vehicles and Applications

This Dorman suspension control arm (part number 521-547) is compatible with a variety of Audi and Volkswagen models, including:

• Audi A3, A3 Quattro, Q3, Q3 Quattro, RS Q3, S3, TT, TT Quattro
• Volkswagen Bora, CC, Eos, Golf, GTI, Jetta, Passat, Passat CC, Tiguan, Tiguan Limited, R32

It is designed to replace worn or damaged trailing arms, restoring proper suspension function and vehicle handling.

Common Issues Addressed by This Control Arm

• Excessive suspension noise or clunking during driving
• Uneven tire wear caused by misaligned suspension components
• Reduced steering stability or poor handling response
• Vibration or harshness transmitted through the suspension
• Worn or damaged bushings leading to suspension play

Installation Notes and Tips

• Ensure the vehicle is securely lifted and supported before removal
• Inspect related suspension components such as ball joints and mounting hardware
• Use proper torque specifications when installing the control arm
• Alignment check is recommended after installation to maintain handling performance
• Ball joint must be sourced separately as it is not included with this part

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM specifications. The 521-547 control arm undergoes rigorous quality checks to ensure durability and fitment accuracy. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in materials and workmanship. Refer to the product documentation for exact warranty terms.