Application : GMC Sierra 2500 HD Air Filter Housing. 2003 GMC Sierra 2500 HD Engine: 6.0L V8; wo/High Capacity Air Cleaner;. 2003 GMC Sierra 2500 HD Engine: 8.1L V8; wo/High Capacity Air Cleaner;. 2004 GMC Sierra 2500 HD Engine: 6.0L V8; wo/High Capacity Air Cleaner;.
