Dorman 520-545 Suspension Control Arm and Ball Joint Assembly - Front Left Lower

Durable Suspension Control Arm and Ball Joint Assembly for Volvo Models

The Dorman 520-545 suspension control arm and ball joint assembly is engineered to provide reliable performance for select Volvo vehicles. Designed specifically for Volvo C30, C70, S40, and V50 models, this assembly ensures proper suspension function and vehicle stability.

Key Features of the Dorman 520-545 Assembly

• Pre-greased for immediate use without additional lubrication
• Includes rubber bushings for effective vibration dampening
• Steel control arm with a black finish for corrosion resistance
• Bolt-in ball joint with pinch stud type, installed and ready
• Mounting hardware included for straightforward installation
• Light suspension grade type suitable for regular driving conditions
• Control arm dimensions: maximum width 288.5 mm, maximum length 237 mm
• Single mounting hole with 12.3 mm diameter for secure fitment

Detailed Product Description

The Dorman 520-545 suspension control arm and ball joint assembly is a casting/forged steel component designed to restore the suspension geometry of Volvo C30, C70, S40, and V50 vehicles. This assembly comes pre-greased and includes rubber bushings to reduce noise and absorb road vibrations. The ball joint is installed with a pinch stud mounting type, providing a secure and reliable connection to the suspension system. The control arm’s black finish offers protection against corrosion, extending the part’s service life. Mounting hardware is included, simplifying the replacement process.

Common Suspension Issues Addressed

• Worn or damaged control arm bushings causing steering instability
• Loose or failing ball joints leading to uneven tire wear
• Suspension noise due to degraded components
• Misalignment affecting vehicle handling and safety
• Corrosion or physical damage to original control arm assembly

Installation Notes and Tips

• Compatible with Volvo C30, C70, S40, and V50 models; verify vehicle year and specifications before installation
• Pre-greased ball joint eliminates the need for additional lubrication during installation
• Use included mounting hardware to ensure proper fit and torque specifications
• Check suspension alignment after installation to maintain optimal handling
• Professional installation is recommended for safety and performance

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM standards for fit, form, and function. The 520-545 assembly undergoes rigorous quality control to ensure durability and reliability. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in materials and workmanship. Consult product documentation or the supplier for exact warranty terms.