The Chelsea 379959 is a genuine Chelsea Plug Nwd designed for use as a PTO component. Chelsea plugs of this type serve as sealing or port-closure hardware within the PTO assembly, keeping fluid contained and contaminants out of critical passages. With no additional specification data published for this part, the part number itself is the key identifier when ordering. Pro Gear and Transmission carries genuine Chelsea PTO parts. Call us to confirm this is the correct plug for your specific PTO model before ordering.FeaturesGenuine Chelsea part number 379959Plug Nwd classification within the Chelsea PTO parts lineDesigned for use as a port-closure or sealing component in Chelsea PTO assembliesDirect OEM-style replacement for Chelsea PTO applicationsSold by Pro Gear and TransmissionUsed in this Chelsea PTO model246 Series