The Meritor 1228J2974 is a genuine OEM Bearing Cup for drive axle applications. Part number 1228J2974 (also referenced as 1228-J2974) is from Meritor, covering drive axle product lines where this cup is specified. A bearing cup seats and guides the tapered roller bearing assembly within the axle housing, keeping bearing loads properly distributed across the race surface. If you need to confirm this is the correct cup for your axle assembly, call Pro Gear and Transmission and we can help identify the right fit.FeaturesGenuine Meritor OEM Bearing CupPart number 1228J2974Drive axle product applicationDirect Meritor sourcing through Pro Gear and TransmissionCall us to verify fitment for your specific axle assembly