Seller notes

Features & Specifications: Dual Insulated Protective Cover Prevents premature zirconium sensor wear Laser welded sensor body to keep out contaminants Heavy duty heater contacts (on three or four wire heated models) Internal Ceramic Insulation for optimal sensor performance. Sealed wire leads prevent moisture interference with electronic signal Compatibility: 2008-2009 Buick LaCrosse 5.3L2008-2009 Chevrolet Impala 5.3L2008 Pontiac Grand Prix 5.3L Q&A: Q: How do I know the O2 sensor is good or not...

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