High-quality Spindle Bush Set (4 pcs) designed for long-lasting performance and wear resistance. Precisely engineered to fit Zetor tractor models 2011, 5911, 4511, and 3522. Ensures smooth spindle movement, reduces vibration, and improves overall tractor stability during heavy-duty field operations. Perfect replacement part maintaining original equipment standards with corrosion resistance and high tensile strength for longer service life.