Photo 1 of A-Premium Set of 4 O2 Oxygen Sensor (Upstream and Downstream) Compatible with Chevy, GMC, Cadillac & Pontiac - Silverado 1500, Malibu, Tahoe, Sierra 1500, Yukon, Escalade

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Photo 1 of A-Premium Set of 4 O2 Oxygen Sensor (Upstream and Downstream) Compatible with Chevy, GMC, Cadillac & Pontiac - Silverado 1500, Malibu, Tahoe, Sierra 1500, Yukon, EscaladePhoto 2 of A-Premium Set of 4 O2 Oxygen Sensor (Upstream and Downstream) Compatible with Chevy, GMC, Cadillac & Pontiac - Silverado 1500, Malibu, Tahoe, Sierra 1500, Yukon, Escalade