Chelsea part number 550306 is a genuine Chelsea PTO bearing designed as a direct replacement component for Chelsea power takeoff units. Chelsea PTOs are widely used across medium- and heavy-duty truck applications, and sourcing the correct bearing is critical to maintaining proper PTO function and service life. Pro Gear and Transmission carries genuine Chelsea parts to help fleet shops and independent mechanics keep equipment running. Not certain this bearing fits your specific PTO model? Give us a call and we can help you confirm the right part before you order.FeaturesGenuine Chelsea replacement bearingPart number 550306Designed for Chelsea power takeoff (PTO) unitsDirect replacement for service and repair applicationsSold by Pro Gear and TransmissionUsed in these Chelsea PTO models242 Series243 Series244 Series