The Muncie 40400400 is a genuine OEM washer used in Muncie power takeoff (PTO) assemblies. Washers of this type serve as precision spacers or thrust surfaces within the PTO unit, and sourcing the correct Muncie part number ensures proper fit within the assembly. This is a sold-individually replacement piece carried by Pro Gear and Transmission. Not sure this is the exact washer your unit requires? Give us a call to confirm the correct fit for your specific Muncie PTO application before ordering.FeaturesGenuine Muncie OEM washer for PTO assembliesMuncie part number 40400400Designed as a direct-fit replacement within the Muncie PTO unitCarried by Pro Gear and Transmission for hard-to-find Muncie PTO components