Features: -Aluminum construction to ensure heat transfer efficiency -Louvered aluminum fins and tubes are bonded through a unique furnace-brazing process with premium quality aluminum for maximum heat dissipation -Each product is quality inspected and 100% tested -Lightweight Direct Bolt-On OEM Fitment or Replacement -Guaranteed Exact Fit for easy installation Compatibility: 2005 CHEVROLET AVALANCHE 1500 5.3 1996-1999 CHEVROLET/GMC C1500/K1500 1996-2000 CHEVROLET/GMC C2500/K2500 1996-2002 CHEVROLET/GMC C3500/K3500 2002-2006 CADILLAC ESCALADE .