Dorman 521-740 Suspension Control Arm and Ball Joint Assembly - Front Right Upper Forward

Durable Suspension Control Arm and Ball Joint Assembly

The Dorman 521-740 suspension control arm and ball joint assembly is engineered for Hyundai Equus and Genesis models. Designed with a steel control arm and pre-greased ball joint, this assembly ensures reliable suspension performance and smooth steering response.

• Pre-greased ball joint for immediate use
• Includes rubber bushings for vibration dampening
• Steel control arm with casting/forged construction
• Threaded ball joint stud with press-in mounting
• Compatible with Hyundai Equus and Genesis vehicles
• Mounting hardware included for straightforward installation
• Control arm dimensions: max length 237 mm, max width 288.5 mm

Product Features and Specifications

This suspension control arm and ball joint assembly from Dorman is built with a light suspension grade type suitable for regular driving conditions. The control arm is constructed from durable steel with a black finish, providing strength and corrosion resistance. The assembly includes rubber bushings that help absorb road vibrations and reduce noise. The ball joint is installed and pre-greased, featuring a threaded stud with a 14 mm thread diameter and a press-in mounting type for secure fitment. The control arm has one mounting hole with a diameter of 12.3 mm, designed to match factory specifications for Hyundai Equus and Genesis models.

Compatible Vehicles and Applications

This Dorman 521-740 suspension control arm and ball joint assembly is specifically compatible with the following Hyundai vehicles:

• Hyundai Equus
• Hyundai Genesis

It is designed to replace worn or damaged control arms and ball joints, restoring proper suspension geometry and vehicle handling.

Common Suspension Issues Addressed

• Excessive play or looseness in the suspension
• Uneven tire wear caused by misalignment
• Clunking or knocking noises during driving
• Steering instability or wandering
• Vibration or harshness over bumps

Installation Notes and Tips

Installation of the Dorman 521-740 assembly requires basic suspension tools and mechanical knowledge. Since the ball joint is pre-installed and pre-greased, no additional lubrication is necessary before installation. Ensure all mounting points are clean and free of debris before fitting. Torque all fasteners to manufacturer specifications to maintain proper suspension alignment and safety.

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM standards. This control arm and ball joint assembly undergoes rigorous quality checks to ensure durability and fitment accuracy. While specific warranty details are not provided, Dorman typically offers limited warranties on their suspension parts to cover defects in materials and workmanship.