Dorman 526-657 Suspension Control Arm and Ball Joint Assembly - Front Left Lower

Durable Suspension Control Arm and Ball Joint Assembly

The Dorman 526-657 suspension control arm and ball joint assembly is engineered for reliable performance in Buick and Pontiac vehicles. Designed specifically for models like the Allure, Grand Prix, and LaCrosse, this assembly ensures proper suspension function and vehicle stability.

• Pre-greased for immediate installation and reduced maintenance
• Includes grease fitting and mounting hardware for convenience
• Constructed from durable steel with rubber and steel bushings
• Boxed control arm design for enhanced strength and rigidity
• Bolt-in ball joint with threaded stud for secure fitment
• Compatible with Buick Allure, Pontiac Grand Prix, and LaCrosse models
• Part number 526-657 for precise identification and ordering

Product Features and Specifications

This suspension control arm and ball joint assembly features a light suspension grade type suitable for regular driving conditions. The control arm is made from steel with a boxed design, measuring a maximum length of 283 mm and a width of 407 mm, finished in black for corrosion resistance. It includes two mounting holes with a diameter of 14.2 mm, and the bushings are made from a combination of rubber and steel to provide durability and vibration dampening. The ball joint is pre-installed, featuring a threaded stud with a 12 mm thread diameter and a stud length of 26.2 mm. The assembly comes with a castle nut, cotter pin, and a zerk fitting for grease application, ensuring long-lasting suspension performance.

Compatible Vehicles and Applications

This Dorman 526-657 control arm and ball joint assembly is compatible with the following vehicles:

• Buick Allure
• Pontiac Grand Prix
• Buick LaCrosse

It is designed to replace worn or damaged suspension components, restoring proper wheel alignment and handling characteristics.

Common Suspension Issues Addressed

• Excessive play or looseness in the suspension control arm
• Worn or damaged ball joints causing steering instability
• Uneven tire wear due to misaligned suspension components
• Clunking noises from suspension under load or over bumps
• Reduced vehicle handling and ride comfort

Installation Notes and Tips

The Dorman 526-657 assembly is designed for bolt-in installation with included mounting hardware. The pre-greased ball joint and grease fitting simplify maintenance. Ensure proper torque specifications are followed during installation, and verify alignment after replacement. This assembly is not adjustable, so precise fitment is critical for optimal suspension performance.

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM standards. The 526-657 control arm and ball joint assembly undergoes rigorous quality checks to ensure durability and fitment accuracy. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in materials and workmanship.