Dorman 520-639 Suspension Control Arm and Ball Joint Assembly - Front Left Upper

Reliable Suspension Control Arm and Ball Joint Assembly for Honda Accord

The Dorman 520-639 suspension control arm and ball joint assembly is designed specifically for Honda Accord models, providing a durable and pre-greased replacement part. Engineered with steel construction and rubber bushings, this assembly ensures consistent suspension performance and vehicle stability.

Key Features of Dorman 520-639 Control Arm Assembly

• Pre-greased for immediate installation and reduced maintenance
• Includes rubber bushings for effective vibration dampening
• Steel control arm with a black finish for corrosion resistance
• Press-in ball joint with threaded stud for secure mounting
• Mounting hardware included for a complete replacement solution
• Designed for light suspension grade applications
• Compatible with Honda Accord models requiring a 12.3 mm mounting hole diameter

Detailed Description of the Suspension Control Arm and Ball Joint

This Dorman suspension control arm and ball joint assembly (part number 520-639) is constructed from forged and cast steel, providing strength and durability for regular driving conditions. The assembly comes pre-greased, eliminating the need for additional lubrication during installation. Rubber bushings are included to absorb road vibrations and reduce noise, enhancing ride comfort. The ball joint is press-in mounted with a threaded stud measuring 14 mm in diameter, ensuring a secure fit and reliable steering response. The control arm measures up to 288.5 mm in width and 237 mm in length, designed to match the original equipment specifications for Honda Accord vehicles.

Common Suspension Issues Addressed by This Assembly

• Worn or damaged control arm bushings causing steering instability
• Loose or failing ball joints leading to uneven tire wear
• Corroded or bent control arms affecting suspension alignment
• Excessive vibration or noise from suspension components
• Difficulty maintaining proper wheel alignment and handling

Installation Notes and Tips

• Ensure vehicle is securely lifted and supported before removal
• Compare new assembly dimensions with the original part for fitment confirmation
• Torque mounting hardware to manufacturer specifications
• Check alignment after installation to maintain proper handling
• No grease fitting included; pre-greased ball joint requires no additional lubrication

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 520-639 suspension control arm and ball joint assembly undergoes rigorous quality control to ensure durability and performance. This part is backed by Dorman's limited warranty, providing coverage against defects in material and workmanship under normal use.