Dorman 520-158 Suspension Control Arm Bushing - Front Right Lower

Durable Suspension Control Arm Bushing for Select GM and Isuzu Models

The Dorman 520-158 suspension control arm bushing is engineered to provide reliable support and stability for your vehicle's suspension system. Designed specifically for various Buick, Chevrolet, GMC, Isuzu, Oldsmobile, and Saab models, this iron bushing ensures a secure fit and long-lasting performance.

• Constructed from durable iron material for strength and longevity
• Finished in black for corrosion resistance and a clean appearance
• Height dimension of 2.33 inches for precise fitment
• Distance between mounting holes measures 10.5 inches to match OEM specifications
• Includes control arm support bracket for complete installation

Product Details and Specifications

The Dorman 520-158 suspension control arm bushing is designed to meet the exacting standards required for suspension components. Its iron construction provides the necessary rigidity to maintain suspension geometry under load, while the black finish helps resist environmental wear. The 2.33-inch height and 10.5-inch distance between mounting holes ensure compatibility with control arms on vehicles such as the Chevrolet Trailblazer, GMC Envoy, Buick Rainier, and Isuzu Ascender. This part includes the control arm support bracket, facilitating a straightforward replacement process.

Compatible Vehicles and Applications

This suspension control arm bushing is compatible with the following makes and models:

• Buick Rainier
• Chevrolet Trailblazer, Trailblazer EXT, SSR
• GMC Envoy, Envoy XL, Envoy XUV
• Isuzu Ascender, Bravada
• Oldsmobile (specific models)
• Saab 9-7x

Common Suspension Issues Addressed

• Excessive suspension noise or clunking during driving
• Uneven tire wear due to misaligned control arms
• Reduced handling stability and steering response
• Vibration or harshness transmitted through the suspension
• Worn or damaged bushings causing suspension component movement

Installation Notes and Tips

When installing the Dorman 520-158 suspension control arm bushing, ensure the vehicle is securely lifted and supported. Remove the old bushing and clean the mounting surfaces thoroughly before installing the new part. Verify that the 10.5-inch distance between mounting holes aligns correctly with the control arm. Use appropriate torque specifications for mounting bolts to avoid over-tightening or loosening during operation. It is recommended to inspect related suspension components during installation for wear or damage.

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM standards, providing dependable performance and durability. The 520-158 control arm bushing undergoes rigorous quality checks to ensure fit and function. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in material and workmanship. Consult product documentation for exact warranty terms.