AST PSB 640 Polyurethane Front Lower Control Arm Bushing

The AST PSB 640 is a high-performance polyurethane control arm bushing designed to replace worn original rubber bushings in the front suspension system. This product is manufactured with the highest grade of polyurethane and features a three-piece design consisting of an outer black bushing shell, inner yellow bushing, and a directional spacer for proper installation.

Key Features:

• Quality and lifespan exceeds the original part
• Polyurethane bushings are stronger and last longer than standard rubber bushings
• Improves vehicle handling and drivability
• Three-piece assembly design for controlled deflection and reduced NVH
• Quality silicone lubricant included with every package
• Resistant to oil contamination and environmental degradation

This bushing mounts at the rear position of the front lower control arm and is commonly used in Mini Cooper applications. The PSB brand bushing features relatively soft durometer with concave reliefs to allow proper articulation while maintaining improved handling characteristics. Professional installation is recommended as proper lubrication and assembly orientation are critical for optimal performance and longevity.