Control Arm Upper Bushing

The Control Arm Upper Bushing (MPN: KCA452) is a precision suspension component engineered for the Mazda Miata platform (1990–2005 model years). This polyurethane bushing assembly serves as the critical elastomeric interface between the upper control arm and the vehicle's frame, managing suspension articulation while isolating vibration and road noise. Whether you're a law enforcement motor pool technician, military vehicle maintainer, or performance-oriented enthusiast, this OEM-equivalent replacement restores proper suspension geometry and handling response after wear or degradation.

Constructed from durable polyurethane, the Control Arm Upper Bushing delivers superior longevity and resistance to age-related cracking compared to stock rubber compounds. The material's engineered hardness maintains chassis stiffness while absorbing impact loads from uneven terrain and aggressive cornering—essential for vehicles operating under demanding duty cycles. Black finish coating resists UV degradation and environmental contamination. Precise dimensional tolerances (7.85 x 2.8 x 9.85 inches) ensure seamless integration into the OEM suspension mounting points without modification or shimming, reducing installation time and eliminating alignment issues.

This component is ideal for mechanics and fleet operators maintaining Miata platforms in high-mileage service, particularly those requiring repeatable suspension response and minimal downtime. Installation requires basic suspension tools and proper upper control arm positioning; reference factory service documentation for torque specifications and alignment procedures. At 1.54 lbs, the bushing kit is lightweight and easy to handle during replacement. The polyurethane formulation outperforms aged rubber in temperature stability, making it suitable for both routine patrols and tactical operations across diverse climate zones.