Dorman 521-638 Suspension Control Arm and Ball Joint Assembly - Front Right Lower

Durable Suspension Control Arm and Ball Joint Assembly for Hyundai and Kia

The Dorman 521-638 suspension control arm and ball joint assembly is engineered for reliable performance in Hyundai Santa Fe and Kia Sorento vehicles. Designed with quality materials and pre-greased components, this assembly supports smooth suspension operation and vehicle handling.

• Pre-greased for immediate installation and reduced maintenance
• Includes rubber bushings and mounting hardware for a complete replacement
• Steel boxed control arm construction for enhanced strength and durability
• Press-in ball joint with pinch stud type, installed and ready to use
• Compatible with Hyundai Santa Fe and Kia Sorento models

Product Features and Specifications

This suspension control arm and ball joint assembly (part number 521-638) features a boxed steel control arm finished in black for corrosion resistance. The assembly includes rubber bushings that absorb road vibrations and reduce noise. The ball joint is press-in mounted with a pinch stud type and comes pre-installed, eliminating the need for separate ball joint installation. The control arm is designed with one mounting hole (12.3 mm diameter) and measures up to 288.5 mm in width and 237 mm in length. This light suspension grade component is intended for regular driving conditions and includes all necessary mounting hardware for a straightforward replacement.

Compatible Vehicles and Applications

• Hyundai Santa Fe suspension repair and maintenance
• Kia Sorento suspension component replacement
• Addressing worn or damaged control arms and ball joints in these models
• Improving suspension stability and steering response
• Restoring factory suspension geometry and ride quality

Installation Notes and Tips

Installation of the Dorman 521-638 control arm and ball joint assembly requires basic suspension repair tools. Since the ball joint is pre-installed and the control arm is pre-greased, the assembly can be installed without additional lubrication. Ensure the mounting hardware is torqued to manufacturer specifications. This part is not adjustable, so alignment after installation is recommended to maintain proper suspension geometry and tire wear.

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM standards. The 521-638 assembly undergoes quality checks to ensure durability and fitment accuracy for Hyundai Santa Fe and Kia Sorento vehicles. This product includes a limited warranty covering defects in materials and workmanship under normal use conditions.