Description + Cross References:Meritor: 1A 3211B5618, 1691825C91, 8235A3211B5618, A3211B5618RI, ATIA3211B5618, HRA3211B5618, TDAA3211B5618 Additional Info + UPC: 737238666905 Mfr Part Number: A3211B5618 Bolt Circle Diameter: 8.25 in. Pilot Diameter: 6.75 in.