Fits 2003-2006 Chevrolet Express 1500 2500 4.3L GMC Savana O2 Sensor 234-4256

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For 2003-2006 GMC Savana 1500 4.3L Upstream Downstream O2 02 Oxygen Sensor

Up/Downstream Oxygen O2 Sensor OEM For Chevy Hummer GMC Silverado 2500 234-4256

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✅ Oxygen Sensor O2 02 For Chevy Hummer GMC Pickup Silverado 2500 6.0L 234-4256

Downstream Oxygen O2 Sensor For Cadillac Chevy GMC Hummer Pontiac 234-4256 OEM

Downstream Oxygen O2 Sensor For 2008-2014 Chevrolet Express 1500 4.3L 5.3L & GMC