Photo 1 of O2 Oxygen Sensor Upstream and Downstream for Chevy Suburban Silverado 1500 2500 3500 HD, for GMC Sierra Yukon XL, for Cadillac Escalade, H2 6.0L V8 2003-2006, Replace 234-4669 234-4407 4Pcs

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Photo 1 of O2 Oxygen Sensor Upstream and Downstream for Chevy Suburban Silverado 1500 2500 3500 HD, for GMC Sierra Yukon XL, for Cadillac Escalade, H2 6.0L V8 2003-2006, Replace 234-4669 234-4407 4PcsPhoto 2 of O2 Oxygen Sensor Upstream and Downstream for Chevy Suburban Silverado 1500 2500 3500 HD, for GMC Sierra Yukon XL, for Cadillac Escalade, H2 6.0L V8 2003-2006, Replace 234-4669 234-4407 4Pcs