The Chelsea 5P1003 is a genuine Chelsea input gear assembly designed for Chelsea PTO applications. This input gear serves as a core drivetrain component within the PTO, transferring engine power into the power takeoff unit. Pro Gear and Transmission carries genuine Chelsea PTO parts including the 5P1003 for fleet maintenance operations and professional shop use. Not sure this is the right part for your unit? Give us a call and we can help confirm proper fitment before you order.FeaturesGenuine Chelsea input gear assemblyPart number 5P1003Designed for Chelsea PTO applicationsDirect-fit replacement input gear componentSold by Pro Gear and TransmissionUsed in these Chelsea PTO models352 Series440 Series442 Series446 Series447 Series452 Series488 Series645 Series