The Chelsea 5P439 is a genuine Chelsea Input Idler Gear, also referenced as 5-P-439, designed for the Chelsea 700 Series power takeoff. Item 7 in the illustrated parts list for that series, this idler gear is a direct OEM replacement within the input gear train. Proper gear selection matters in a PTO application, so call Pro Gear and Transmission to confirm this is the correct part for your unit before ordering.FeaturesGenuine Chelsea replacement partPart number 5P439, also listed as 5-P-439Item 7 in the Chelsea 700 Series PTO illustrated parts listInput idler gear position in the PTO gear trainSold by Pro Gear and TransmissionUsed in this Chelsea PTO model700 Series