Model # U4321--- Official Hoover upright vacuum

Part #21772501

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

Part #017207AZ

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

Part #32724008

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

Part #48414021

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

Part #41424011

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

Part #21465314

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

Part #34784021

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

Part #047457AY

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

Part #48111008

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

Part #41435070

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