Strut mounts and bearings isolate the vehicle chassis from road noise and vibration transmitted through the suspension. These components are positioned at the top of the strut assembly, connecting it to the vehicle body. Mounts incorporate rubber or hydraulic isolators to dampen harmonic resonance, while bearings—typically ball bearing or tapered roller—enable smooth steering and strut rotation. Construction varies by vehicle, utilizing stamped steel, cast aluminum, or reinforced polymer housings. Failure manifests as clunking noises during suspension travel, steering bind, or premature strut wear.