Photo 1 of 4PCS Oxygen O2 Sensor Upstream Downstream 234-4668 for 2003 2004 2005 Chevy/Chevrolet Silverado 1500 Tahoe Avalanche Suburban 1500 GMC Sierra 1500 Yukon Cadillac Escalade 5.3L V8 250-24470 15284

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Photo 1 of 4PCS Oxygen O2 Sensor Upstream Downstream 234-4668 for 2003 2004 2005 Chevy/Chevrolet Silverado 1500 Tahoe Avalanche Suburban 1500 GMC Sierra 1500 Yukon Cadillac Escalade 5.3L V8 250-24470 15284Photo 2 of 4PCS Oxygen O2 Sensor Upstream Downstream 234-4668 for 2003 2004 2005 Chevy/Chevrolet Silverado 1500 Tahoe Avalanche Suburban 1500 GMC Sierra 1500 Yukon Cadillac Escalade 5.3L V8 250-24470 15284