SPL Parts Rear Upper Control Arm Bushing 92-05 E36 E46

Rear upper control arm bushing designed for BMW E36 (1992–1999) and E46 (1999–2005) applications, providing reduced bushing flex to preserve suspension geometry and deliver more consistent handling and steering feedback.

This SPL Parts FKS Series rear upper arm bushing (RKB) replaces the stock mushy rubber bushing with a precision articulating bearing solution to reduce bind and friction during suspension travel.

• Low-friction articulating spherical bearings — allow controlled articulation where the stock rubber isolates, reducing internal friction so the arm can move freely and consistently; this maintains predictable suspension response under dynamic loads.
• Eliminates bushing flex — removes the compliance inherent in the original rubber component, preserving alignment and suspension geometry during cornering and load changes for improved handling accuracy.
• Reduces bind and friction — lowers resistance in the pivot joint to improve small-deflection response and steering feedback, helping the chassis react more directly to driver inputs.
• Maintains optimum suspension geometry under load — ensures the rear upper arm holds its designed position during suspension compression and lateral forces, supporting consistent tire contact and vehicle balance.
• SPL Parts engineering and quality focus — built to the brand’s performance-oriented standards to provide a durable, track-capable replacement for the factory component.

Application-specific upgrade intended to improve the mechanical connection between the rear upper control arm and the chassis without altering other suspension components. Use where a firm, low-deflection rear suspension response is desired to enhance handling precision and driver feedback.