Compatibility: For 2001-2004 Chevrolet Tracker 2.5L For 2001-2005 Suzuki Grand Vitara 2.5L For 2004 Suzuki Vitara 2.5L 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? .