The Chelsea 21P673 is the Bearing Cap Aft for Chelsea PTO units. This cap secures the aft bearing position within the PTO assembly, making it a direct-replacement service part when the original shows wear or damage. Chelsea PTO components are precision-fitted to their respective applications, so confirming the correct unit is essential before ordering. Pro Gear and Transmission carries genuine Chelsea parts for professional fleet and drivetrain service. Call us to verify this part fits your specific PTO configuration before ordering.FeaturesGenuine Chelsea Bearing Cap AftPart number 21P673Designed for aft bearing retention in Chelsea PTO assembliesDirect-replacement service part for worn or damaged original capsCall Pro Gear and Transmission to confirm compatibility with your PTO unit