2003 GMC Sierra 3500 control modules & parts

48 refurbished parts are available for the 2003 GMC Sierra 3500. Each listing shows the exact vehicles and engines it fits; match the part number on your original unit before ordering.

Engines: 6.0L V8 – Gas, 6.6L V8 – Diesel, 8.1L V8 – Gas

Other GMC Sierra 3500 years