This transmission bearing fits Mack, Navistar, and Kenworth platforms and is built as a cross-brand replacement. It measures 12.001 in. across with a 1.02 in. length, allowing smooth shaft rotation under load, and ships individually as a single unit. No other physical details are specified.Interchanges:Dana 550565GMC Truck 15533065GMC Truck 15536014GMC Truck 2011577GMC Truck 2830052GMC Truck 2940129GMC Truck 907171GMC Truck 907760GMC Truck 9411761GMC Truck 9413334GMC Truck 954309Kenworth K1565Kenworth K5030Kenworth K5289Kenworth K9241Mack 2104-550565Mack 3088-81526Mack 46AX309Mack 8235-1228C29Mack 8235-1828S149Navistar 156284H1Navistar 591699C91Navistar 983504R91Rockwell 1228-C-29Rockwell 1828-S-149GBG-7326FeaturesDimensions: 12.001 in. x 12.001 in. x 1.02 in.Sold individually, 1 EACH per packTech SpecsHeight: 12.001 in.Width: 12.001 in.Length: 1.02 in.Unit of Measure: EACHSell Pack: 1 EACH