Dorman 521-018 Lateral Arm and Ball Joint Assembly - Rear Left Lower Forward or Rear Right Lower Forward

Durable Lateral Arm and Ball Joint Assembly for Kia Magentis and Optima

The Dorman 521-018 lateral arm and ball joint assembly is engineered to restore precise suspension control for Kia Magentis and Optima models. Designed with quality materials and pre-installed components, this assembly ensures reliable performance and fitment.

• Compatible with Kia Magentis and Optima vehicles
• Includes a pre-installed, threaded ball joint for easy replacement
• Constructed from durable steel and iron for strength and longevity
• Rubber bushings included to reduce vibration and noise
• Pressed attachment type for secure fitment
• Pre-greased for immediate installation without additional lubrication
• Control arm made from casting/forged material for enhanced durability

Product Features and Specifications

The Dorman 521-018 lateral arm and ball joint assembly features a regular grade type designed to meet OEM standards. The assembly includes a greaseable ball joint that is already installed and threaded for straightforward installation. Rubber bushings are included to provide cushioning and reduce wear on suspension components. The control arm is manufactured using casting and forging processes, combining strength and flexibility. The steel and iron construction ensures the part withstands the stresses of daily driving. This lateral link is pre-greased, eliminating the need for additional maintenance during installation.

Applications and Problem Resolution

This lateral arm and ball joint assembly is specifically compatible with Kia Magentis and Optima models, making it a direct replacement part. It is designed to address common suspension issues such as:

• Excessive play or looseness in the suspension system
• Uneven tire wear caused by worn ball joints or bushings
• Steering instability or wandering
• Clunking noises during driving over bumps
• Vibration or harshness in the front suspension

Installation Notes and Tips

Installation of the Dorman 521-018 lateral arm and ball joint assembly requires basic suspension knowledge and tools. Since the ball joint is pre-installed and the part is pre-greased, it simplifies the replacement process. Ensure the vehicle is securely lifted and supported before removing the old lateral arm. Verify that the threaded ball joint stud is properly torqued to manufacturer specifications. It is recommended to perform a wheel alignment after installation to maintain proper suspension geometry and tire wear.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards, providing reliable fit and function. The 521-018 lateral arm and ball joint assembly undergoes rigorous quality control to ensure durability and performance. This part comes with a limited warranty covering defects in material and workmanship, offering peace of mind for your suspension repair.