Dorman 521-919 Suspension Control Arm - Front Left Lower

Overview of Dorman Suspension Control Arm 521-919

The Dorman 521-919 suspension control arm is engineered for reliable performance in select Buick, Cadillac, Oldsmobile, and Pontiac models. Designed with durable steel construction and a coated black finish, this control arm provides essential support for your vehicle's suspension system.

• Constructed from sturdy steel with a coated black finish for corrosion resistance
• Boxed construction enhances strength and rigidity
• Includes rubber bushings with a black color and precise dimensions (14.3 mm inside diameter, 39.6 mm outside diameter, 92 mm length)
• Ball joint mounting type is welded with a threaded stud (ball joint not included)
• Overall length of 262.5 mm suitable for specific GM models

Detailed Product Features and Specifications

This Dorman suspension control arm (part number 521-919) features a boxed steel design that improves structural integrity and durability under typical driving conditions. The black coated finish helps protect against rust and wear. It comes equipped with a single rubber bushing designed to absorb vibrations and reduce noise, enhancing ride comfort. The ball joint mounting is welded, and the stud is threaded, allowing for secure attachment of compatible ball joints (sold separately). This control arm is not adjustable and does not include grease fittings or mounting hardware, so ensure compatibility with your vehicle’s existing components.

Compatible Vehicles and Applications

This control arm is compatible with various Buick, Cadillac, Oldsmobile, and Pontiac models, including but not limited to:

• Buick 60 Special, LeSabre, Park Avenue
• Cadillac DeVille, Fleetwood, Seville
• Oldsmobile 88, 98, LSS
• Pontiac Bonneville, Delta 88, Regency

When searching for a suspension control arm replacement for these vehicles, referencing part number 521-919 ensures proper fitment and performance.

Common Suspension Issues Addressed

• Worn or damaged control arm bushings causing excessive play or noise
• Corroded or weakened control arm structure affecting alignment and handling
• Loose or damaged ball joint mounting points leading to steering instability
• Vibration and harshness transmitted through the suspension
• Uneven tire wear due to suspension component failure

Installation Notes and Tips

• Verify vehicle compatibility with part number 521-919 before installation
• Ball joint must be installed separately; ensure correct ball joint type for your vehicle
• Use proper torque specifications for mounting bolts and ball joint stud
• Inspect related suspension components during installation for wear or damage
• Alignment check is recommended after control arm replacement

Quality Assurance and Warranty

Dorman suspension control arms are manufactured to meet or exceed OEM standards for fit, form, and function. The steel construction and coated finish provide durability and corrosion resistance. This product includes rubber bushings designed for long service life. While mounting hardware and ball joints are not included, the control arm is engineered for straightforward integration with existing suspension components. Warranty coverage details should be confirmed with the product documentation or supplier.