The most expensive part in this assembly is the Cover Comp,breath.
The most reasonably priced component used on the Civic 2004 (4) 4dr Ex (ka) Breather Cover is the Washer,plug Drain 14.
The Bolt,flange,6x14 is the most widely applied product in the CIVIC 2004 (4) 4DR EX (KA) BREATHER COVER ( six times ).