This the pivot pin kit that connects the crossbar to the inner boom. The kit includes one 12-0803916 Pivot Pin, one 12-0306748 Pivot Pin Bushing, two 12-0710092 Thrust Washers, two 12-0400637 Pivot Pin Retaining Bolts, two 12-0400428 Lock Nuts and one 80013 Grease Zerk.
Some of the models it fits:
1st Gen Vulcan 810
Century 301
Vulcan 807
Century 312
