Parts such as the Crankcase: Bolt, Stud (341-15192-00) M10-119l, Washer, Special, Bracket, Breaker Shaft, 958-69527-00 Washer, Plain are included in the Tx500 1973 Usa Crankcase parts fiche.
The Tx500 1973 Usa Crankcase consists of forty-one pieces with the Crankcase Assembly 115742- being the most expensive.