Dorman 521-159 Suspension Control Arm and Ball Joint Assembly - Front Left Lower

Durable Suspension Control Arm and Ball Joint Assembly for Volvo Models

The Dorman 521-159 suspension control arm and ball joint assembly is engineered to restore precise steering and suspension performance for select Volvo vehicles. Designed specifically for Volvo C30, C70, S40, and V50 models, this assembly offers a reliable replacement option that meets regular suspension grade requirements.

• Pre-greased control arm and ball joint for immediate installation
• Includes rubber bushings and mounting hardware for a complete setup
• Steel construction with casting/forged control arm for strength and durability
• Bolt-in ball joint with threaded stud for secure mounting
• Compatible with Volvo C30, C70, S40, and V50 models

Product Features and Specifications

The Dorman 521-159 control arm assembly features a black steel control arm with a maximum width of 288.5 mm and length of 237 mm. It includes a pre-installed ball joint with a 14 mm threaded stud and a 12.3 mm mounting hole diameter. The assembly is designed with rubber bushings to absorb road vibrations and reduce noise. Mounting hardware is included to facilitate a straightforward installation process. This light suspension grade component is not adjustable but provides a direct replacement for the original equipment.

Compatible Volvo Models and Applications

This suspension control arm and ball joint assembly is compatible with the following Volvo vehicles: C30, C70, S40, and V50. It is intended for use in suspension systems requiring a light suspension grade control arm with a bolt-in ball joint mounting type. The Dorman 521-159 part number ensures proper fitment and function for these specific models.

Common Suspension Issues Addressed

• Worn or damaged control arm bushings causing steering instability
• Loose or failing ball joints leading to uneven tire wear
• Excessive suspension noise or vibration during driving
• Misalignment issues affecting vehicle handling
• Corroded or weakened control arm compromising suspension integrity

Installation Notes and Tips

Before installation, verify compatibility with your Volvo model and inspect the mounting points for damage. The assembly comes pre-greased and includes all necessary mounting hardware, simplifying the replacement process. Use proper torque specifications for the 12.3 mm mounting hole and ensure the ball joint stud is securely fastened. Professional installation is recommended to maintain suspension alignment and safety.

Quality Assurance and Warranty Information

Dorman manufactures this suspension control arm and ball joint assembly to meet regular suspension grade standards, using durable steel and rubber materials. The product is pre-greased and assembled to provide reliable performance. Warranty coverage details should be confirmed with the distributor or retailer, as they may vary by region.