Cab vibration remains a persistent problem in construction machinery because these machines usually operate on rough, deformable and non-uniform ground. The excitation transmitted to the cab is often dominated by low-frequency and large-amplitude components, which are difficult to isolate using conventional rubber mounts. Rubber mounts are still widely used because they are compact, inexpensive and reliable, but their fixed stiffness and limited damping make them less effective in controlling cab shaking, pitch and roll vibration. For this reason, hydraulic, hydro-pneumatic, liquid-filled and rubber-hydraulic mounts have been introduced to improve the damping performance of cab isolation systems, especially in the low-frequency range. This review examines 30 representative studies on cab mounts and cab isolation systems for construction machinery and related heavy-duty vehicles. The literature is grouped into passive rubber cab mounts, optimal mount design, hydraulic and rubber-hydraulic mounts, and semi-active cab isolation systems. Particular attention is given to studies on vibratory rollers, soil compactors and wheel loaders, where the interaction between road excitation, machine structure and cab mounting system is more severe than in conventional vehicles. The review shows that rubber mounts remain a practical baseline solution, but hydraulic and rubber-hydraulic mounts provide a more suitable route for improving low-frequency vibration isolation. Semi-active systems can further improve adaptability, although their practical application still depends on durability, control reliability and experimental validation on real machines.