The Chelsea 21P576 is a pump flange designed for use with Chelsea power takeoff (PTO) systems. Pump flanges serve as the mounting interface between the PTO output and a hydraulic pump, making proper part identification critical before ordering. Pro Gear and Transmission carries genuine Chelsea parts, including this flange, for fleet shops and drivetrain specialists who need the right hardware the first time. Call us to confirm this is the correct flange for your specific PTO model and pump configuration before placing your order.FeaturesGenuine Chelsea part number 21P576Pump flange for Chelsea power takeoff (PTO) systemsServes as the mounting interface between PTO output and hydraulic pumpSold by Pro Gear and TransmissionCall to confirm fitment with your specific PTO model and pumpUsed in these Chelsea PTO models277 Series278 Series