Dorman 521-863 Suspension Control Arm and Ball Joint Assembly - Front Left Upper

Durable Suspension Control Arm and Ball Joint Assembly for Land Rover LR3

The Dorman 521-863 suspension control arm and ball joint assembly is engineered to restore precise steering and suspension performance for your Land Rover LR3. Designed with quality materials and pre-greased components, this assembly ensures reliable operation and long service life.

• Pre-greased for immediate use and reduced maintenance
• Includes rubber bushings for effective vibration dampening
• Steel stamped control arm construction for strength and durability
• Press-in ball joint with threaded stud for secure mounting
• Mounting hardware included for straightforward installation
• Compatible with Land Rover LR3 suspension systems

Product Features and Specifications

This suspension control arm and ball joint assembly features a stamped steel control arm finished in black for corrosion resistance. The assembly includes a pre-installed ball joint with a 14 mm threaded stud and a single 12.3 mm mounting hole. Rubber bushings are integrated to absorb road shocks and reduce noise. The control arm measures up to 288.5 mm in width and 237 mm in length, designed specifically for light suspension grade applications. Although the assembly is not adjustable, it meets regular grade standards for everyday driving conditions.

Compatible Applications and Use Cases

This Dorman 521-863 assembly is compatible with Land Rover LR3 models requiring a suspension control arm and ball joint replacement. It is suitable for addressing common suspension issues such as:

• Worn or damaged control arm bushings causing steering instability
• Loose or failing ball joints resulting in uneven tire wear
• Excessive suspension noise or vibration
• Alignment problems due to bent or compromised control arms
• Reduced handling performance and vehicle control

Installation Notes and Tips

Installation of the Dorman 521-863 suspension control arm and ball joint assembly requires standard suspension tools and mechanical knowledge. Since the ball joint is press-in type and pre-installed, no additional ball joint assembly is necessary. Ensure the mounting hole aligns correctly with the vehicle’s frame and torque all fasteners to manufacturer specifications. Although grease fittings are not included, the pre-greased components reduce the need for immediate lubrication.

Quality Assurance and Warranty Information

Dorman suspension components are manufactured to meet or exceed OEM standards. The 521-863 control arm and ball joint assembly undergoes rigorous quality checks to ensure durability and fitment accuracy for the Land Rover LR3. This product is backed by Dorman’s limited warranty, providing coverage against defects in material and workmanship under normal use.