Dorman 521-684 Suspension Control Arm - Rear Left Forward or Rear Right Forward

Overview of Dorman Suspension Control Arm 521-684

The Dorman Suspension Control Arm 521-684 is designed specifically for Mazda Protege and Protege5 models. Constructed from durable steel with a coated black finish, this control arm offers reliable performance and longevity for your vehicle's suspension system.

• Made from high-strength steel with a tubular construction
• Black coated finish for corrosion resistance
• Includes rubber bushing with black color and precise dimensions
• Ball joint mounting type is welded with a threaded stud (ball joint not included)
• Compatible with Mazda Protege and Protege5 models

Detailed Product Description

This suspension control arm from Dorman features a tubular steel design that ensures structural integrity and durability under normal driving conditions. The black coated finish helps protect against rust and environmental damage. It comes equipped with a single rubber bushing, which has an inside diameter of 14.3 mm, an outside diameter of 39.6 mm, and a length of 92 mm, providing effective vibration dampening and smooth suspension articulation. The ball joint mounting is welded, and the stud type is threaded, although the ball joint itself is not included with this part. The overall length of the control arm is 262.5 mm, making it a precise fit for the specified Mazda models.

Compatible Vehicles and Applications

This Dorman control arm 521-684 is compatible with the following vehicles:

• Mazda Protege
• Mazda Protege5

It is designed to replace worn or damaged lateral arms in the suspension system, restoring proper alignment and handling characteristics.

Common Issues Addressed by This Control Arm

• Excessive suspension noise or clunking during driving
• Uneven tire wear due to misalignment
• Loose or unstable steering feel
• Vibration or harshness in the front suspension
• Worn or damaged bushings causing suspension play

Installation Notes and Tips

• Ensure the vehicle is securely lifted and supported before installation
• Remove the old control arm carefully, noting the position of bushings and mounting points
• Since the ball joint is not included, inspect the existing ball joint for wear and replace if necessary
• Torque all mounting hardware to manufacturer specifications (mounting hardware not included)
• Alignment check is recommended after installation to maintain proper handling

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM standards for fit and function. This control arm is constructed from quality steel with a protective coating to resist corrosion. While specific warranty details are not provided, Dorman products typically come with a limited warranty against defects in material and workmanship. Refer to Dorman's official documentation for exact warranty terms.