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The Automann 151.68607BA is a universal 16.5" x 8.625" brake drum designed for heavy-duty trucks and trailers. It is a very common part used across multiple brands, generally fitting applications that utilize popular hubs such as 150.D1101, 150.T1101, and Gunite 3807AX. Wofford Truck Parts Wofford Truck Parts +4 Key Vehicle Compatibility: Freightliner: Commonly used with N42A1658625B (and similar numbers). Meritor: Compatible with 063123570002 and 123570 hubs. Webb: Replaces 56855B, 66809B, and 66854B series drums. General Application: Fits most standard heavy-duty tractor and trailer axles with 10-hole, 11.25" bolt circle configurations. Wofford Truck Parts Wofford Truck Parts +2 Specifications for Verification: Brake Size: 16.5" x 8.625" Bolt Holes: 10 @ 1.000" Bolt Circle Diameter: 11.25" Pilot Diameter: 8.780" Overall Depth: 11.39"