Photo 1 of ACAUTO 234-4012 Oxygen Sensor Upstream Downstream O2 Sensor Compatible with Chevy Silverado Express 1500 2500 Tohoe, Sierra Savana 1500 2500 Yukon, Cadillac Escalade Isuzu Oldsmobile Pontiac

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Photo 1 of ACAUTO 234-4012 Oxygen Sensor Upstream Downstream O2 Sensor Compatible with Chevy Silverado Express 1500 2500 Tohoe, Sierra Savana 1500 2500 Yukon, Cadillac Escalade Isuzu Oldsmobile PontiacPhoto 2 of ACAUTO 234-4012 Oxygen Sensor Upstream Downstream O2 Sensor Compatible with Chevy Silverado Express 1500 2500 Tohoe, Sierra Savana 1500 2500 Yukon, Cadillac Escalade Isuzu Oldsmobile PontiacPhoto 3 of ACAUTO 234-4012 Oxygen Sensor Upstream Downstream O2 Sensor Compatible with Chevy Silverado Express 1500 2500 Tohoe, Sierra Savana 1500 2500 Yukon, Cadillac Escalade Isuzu Oldsmobile Pontiac