This New Speed Sensor 125-2966 1252966 fits E320B, E312B and E320C excavators perfectly. It precisely monitors real-time rotational speed and position, delivering stable signals to support normal engine operation. Made of high-quality sensing components and fully sealed rugged housing, it works reliably in harsh construction site conditions. Compliant with OEM standards, it offers accurate induction, perfect fitment and long service life for daily excavator maintenance.