Description + Cross References:Meritor: 1A 3211Z6682, 2504791C91, 8235A3211Z6682, A3211Z6682RI, ATIA3211Z6682, TDAA23211Z6682, TDAA3211Z6682 Additional Info + UPC: 680502122495 Mfr Part Number: A3211Z6682 Bolt Circle Diameter: 7.25 in. Pilot Diameter: 5.50 in.