Compatibility: For 2006-2007 Chevrolet Impala 5.3L 2006-2007 Chevrolet Monte Carlo 5.3L 2005-2007 Pontiac Grand Prix 5.3L Benefits: 1.Dual Insulated Protective Cover Prevents premature zirconium sensor wear 2.Laser welded sensor body to keep out contaminants 3.Internal Ceramic Insulation for optimal sensor performance. 4.Sealed wire leads prevent moisture interference with electronic signal Q&A: Q1:Why the oxygen sensor important for your vhiche? .
