The Chelsea 5P1388 is a genuine Chelsea input gear designed for PTO (power takeoff) applications. Input gears are a critical drivetrain interface component, transferring rotational power from the transmission into the PTO unit. The 5P1388 part number identifies this as a Chelsea-specific replacement piece for maintaining proper PTO function. Pro Gear and Transmission carries genuine Chelsea PTO parts for professional fleet and drivetrain service. Not sure this is your part? Give us a call to confirm proper fit for your application.FeaturesGenuine Chelsea part number 5P1388Input gear for Chelsea PTO unitsDirect Chelsea replacement for PTO drivetrain serviceSold by Pro Gear and TransmissionUsed in this Chelsea PTO model522 Series