Please notice, while this will fit 2001-2006 4.8, 5.3 and 6.0 GM truck engines, some have a straight line front and some have a small curved cutout front. Research shows this should not effect fitment as the mounting post is a different height to adjust for this, but please do your own research if you are ordering a different one than what you currently have.
Foam insulation has been removed, may not include mounting bolt.