Dorman 521-146 Suspension Control Arm and Ball Joint Assembly - Front Right Lower

Reliable Suspension Control Arm and Ball Joint Assembly

The Dorman 521-146 suspension control arm and ball joint assembly is engineered for Ford and Lincoln trucks and SUVs, including the Expedition, F-150, F-150 Heritage, F-250, and Navigator. Designed to restore proper suspension function, this assembly comes pre-greased and includes all necessary mounting hardware for a straightforward replacement.

• Pre-greased control arm and ball joint for immediate use
• Includes rubber bushings and mounting hardware
• Press-in ball joint with threaded stud for secure fitment
• Durable iron control arm with black finish
• Compatible with Ford Expedition, F-150, F-150 Heritage, F-250, and Lincoln Navigator

Durable Construction and Design Features

This suspension control arm and ball joint assembly is constructed from forged and cast iron, providing strength and durability for light suspension grade applications. The assembly features a single mounting hole with a 12.3 mm diameter and a maximum control arm length of 237 mm and width of 288.5 mm. Rubber bushings are included to reduce vibration and noise, while the ball joint is installed and ready for use. The ball joint stud is threaded with a 14 mm diameter, ensuring a secure connection to the vehicle’s suspension system.

Compatible Vehicles and Applications

This Dorman 521-146 assembly is specifically designed for use on Ford and Lincoln models, including:

• Ford Expedition
• Ford F-150 and F-150 Heritage
• Ford F-250
• Lincoln Navigator

It is ideal for replacing worn or damaged suspension control arms and ball joints to restore proper steering and suspension performance.

Common Suspension Issues Addressed

• Excessive play or looseness in the suspension
• Uneven tire wear caused by worn bushings or ball joints
• Clunking or knocking noises during driving
• Poor steering response or alignment problems
• Vibration or instability at higher speeds

Installation Notes and Tips

The Dorman 521-146 control arm and ball joint assembly comes pre-greased and includes mounting hardware, simplifying installation. It is designed for a press-in ball joint mounting type with a threaded stud, so no additional grease fittings are required. Ensure proper torque specifications are followed during installation and verify alignment after replacement to maintain optimal vehicle handling.

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM standards for fit, form, and function. This assembly is built with durable materials and includes rubber bushings to enhance longevity. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in materials and workmanship to provide confidence in your purchase.