Sway bar bushes (also known as stabilizer bar bushes) are elastomeric components that mechanically couple the stabilizer bar to the vehicle chassis. Located at the frame or suspension mounting points of the sway bar, they permit controlled articulation while isolating road vibrations and noise. These bushings typically feature an inner sleeve for bar engagement and an outer shell bonded to the bar’s mounting bracket. Construction materials range from natural rubber to polyurethane, impacting durometer (stiffness) and durability. Replacing worn bushes restores sway bar effectiveness, reducing body roll and improving handling precision.