Photo 1 of Oxygen Sensor Upstream and Downstream Fits for Chevy Tahoe Silverado Suburban 1500 2500 3500 HD, for GMC Sierra Yukon XL, for Cadillac Escalade ESV EXT, O2 Sensor Replace 234-4018 234-4337 4Pcs

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Photo 1 of Oxygen Sensor Upstream and Downstream Fits for Chevy Tahoe Silverado Suburban 1500 2500 3500 HD, for GMC Sierra Yukon XL, for Cadillac Escalade ESV EXT, O2 Sensor Replace 234-4018 234-4337 4PcsPhoto 2 of Oxygen Sensor Upstream and Downstream Fits for Chevy Tahoe Silverado Suburban 1500 2500 3500 HD, for GMC Sierra Yukon XL, for Cadillac Escalade ESV EXT, O2 Sensor Replace 234-4018 234-4337 4Pcs