4X O2 Oxygen Sensor For Chevy Silverado GMC Yukon Sierra 1500 2500 HD 3500 6.0L

2003 GMC Yukon XL 2500 (V8, 6.0L) (California Emission;SLE; SLT). 2003 GMC Yukon XL 1500 (V8, 6.0L) (California Emission;Denali). 2003-2005 GMC Sierra 2500 HD (V8, 6.0L) (Base). 2003-2005 Chevrolet Silverado 1500 HD (V8, 6.0L) (LS).