High-quality Speed Sensor 171-257 Fit for Excavator Part M18*1.5 7.5KVA-35KVA — a direct-fit sensors replacement engineered to OEM specifications. Built for reliable performance in heavy-duty Australian construction and quarry conditions, this speed sensor 171-257 fit for excavator part m18*1.5 7.5kva-35kva restores original equipment performance without the OEM price tag.