Dorman 521-138 Suspension Control Arm and Ball Joint Assembly - Rear Right Upper

Durable Suspension Control Arm and Ball Joint Assembly

The Dorman 521-138 suspension control arm and ball joint assembly is engineered for reliable performance in Acura and Honda vehicles. Designed specifically for models like the Accord, Accord Crosstour, Crosstour, and TL, this assembly ensures proper suspension function and vehicle stability.

• Pre-greased for immediate installation and smooth operation
• Includes rubber bushings and mounting hardware for a complete replacement
• Steel construction with casting/forged control arm for strength and durability
• Press-in ball joint with threaded stud for secure fitment
• Compatible with light suspension grade applications

Product Features and Specifications

This suspension control arm and ball joint assembly (part number 521-138) features a black steel control arm measuring up to 288.5 mm in width and 237 mm in length. The assembly includes rubber bushings to absorb road vibrations and reduce noise. The ball joint is pre-installed and press-fitted, with a 14 mm threaded stud and a 12.3 mm mounting hole diameter, ensuring a precise fit. Mounting hardware is included to facilitate installation without additional parts. This assembly is designed for regular grade suspension systems and is not adjustable.

Compatible Vehicles and Applications

Compatible with Acura and Honda models, this control arm and ball joint assembly is suitable for the Accord, Accord Crosstour, Crosstour, and TL. It is intended for light suspension grade use, making it ideal for standard driving conditions and maintaining factory suspension performance.

Common Suspension Issues Addressed

• Worn or damaged control arm bushings causing steering instability
• Loose or failing ball joints leading to uneven tire wear
• Suspension noise due to degraded rubber bushings
• Misalignment issues affecting vehicle handling
• Corroded or weakened control arm compromising suspension integrity

Installation Notes and Tips

Installation of the Dorman 521-138 assembly requires basic suspension knowledge and tools. Since the ball joint is pre-installed and the control arm is pre-greased, no additional lubrication is necessary. Ensure the mounting hole aligns correctly with the vehicle’s frame and torque all hardware to manufacturer specifications. This assembly is not adjustable, so proper alignment should be verified after installation.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards, providing dependable performance for Acura and Honda vehicles. The 521-138 suspension control arm and ball joint assembly comes with a limited warranty covering defects in materials and workmanship, supporting long-term reliability and customer confidence.