Dorman 521-327 Suspension Control Arm - Rear Left Lower Forward or Rear Right Lower Forward

Overview of Dorman Suspension Control Arm 521-327

The Dorman 521-327 suspension control arm is engineered for reliable performance in Ford Fusion, Lincoln MKZ, Mazda Milan, and Mercury Zephyr vehicles. Constructed from durable steel with a coated black finish, this lateral link control arm offers adjustable features and includes rubber bushings for enhanced suspension stability.

• Made from high-strength steel with casting and forged construction
• Black coated finish for corrosion resistance
• Includes one rubber bushing with a 14.3 mm inside diameter and 39.6 mm outside diameter
• Adjustable design for precise suspension alignment
• Ball joint mounting type is welded; ball joint not included
• Overall length of 262.5 mm suitable for specified vehicle models

Detailed Product Description

The Dorman 521-327 suspension control arm is designed to restore proper suspension geometry and handling characteristics in compatible vehicles such as the Ford Fusion, Lincoln MKZ, Mazda Milan, and Mercury Zephyr. Its steel construction combines casting and forging processes to provide strength and durability under road stress. The black coated finish helps resist corrosion and wear over time. This lateral link features a single rubber bushing that cushions suspension movement and reduces noise and vibration. The bushing measures 14.3 mm inside diameter and 39.6 mm outside diameter, with a length of 92 mm, ensuring a secure fit and smooth articulation. The control arm is adjustable, allowing for fine-tuning of suspension alignment to maintain optimal vehicle handling. While the ball joint mounting is welded and uses a threaded stud type, the ball joint itself is not included with this part.

Common Applications and Issues Addressed

• Restores proper suspension alignment and handling in Ford Fusion, Lincoln MKZ, Mazda Milan, and Mercury Zephyr
• Replaces worn or damaged lateral link control arms causing uneven tire wear
• Eliminates suspension noise and vibration due to deteriorated bushings
• Corrects steering instability and poor vehicle tracking
• Addresses suspension component wear from road impacts or corrosion

Installation Notes and Tips

• Ensure compatibility with vehicle make and model before installation
• Use proper tools to remove old control arm and install the new Dorman 521-327
• Adjust the control arm as needed to achieve correct suspension alignment
• Inspect related suspension components such as ball joints and mounting hardware during replacement
• Professional alignment is recommended after installation to optimize handling

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM specifications for fit, form, and function. The 521-327 control arm undergoes rigorous quality checks to ensure durability and performance. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship. Refer to product documentation for exact warranty terms.