Model # 131921210 Official Craftsman 20" rotary lawn mower

Part #STD551050

The manufacturer no longer makes this part, and there's no substitute part

Part #STD523117

The manufacturer no longer makes this part, and there's no substitute part

Part #78739

The manufacturer no longer makes this part, and there's no substitute part

Part #N/P

The manufacturer no longer makes this part, and there's no substitute part

Part #79627

The manufacturer no longer makes this part, and there's no substitute part

Part #STD601003

The manufacturer no longer makes this part, and there's no substitute part

Part #70685

The manufacturer no longer makes this part, and there's no substitute part

Part #69226

The manufacturer no longer makes this part, and there's no substitute part

Part #68205

The manufacturer no longer makes this part, and there's no substitute part

Part #54867

The manufacturer no longer makes this part, and there's no substitute part