Application：
For Chevrolet Express 1500 4.3L V6 2008-2014
For Chevrolet Express 1500 5.3L V8 2008-2014
For Chevrolet Express 2500 4.8L V8 2008-2015
For Chevrolet Express 2500 6.0L V8 2008-2015
For Chevrolet Express 3500 4.8L V8 2008-2015
For Chevrolet Express 3500 6.0L V8 2008-2010 2013-2015
For GMC Savana 1500 4.3L V6 2008 2009-2014
For GMC Savana 1500 5.3L V8 2008 2009-2014
For GMC Savana 2500 4.8L V8 2008 2009-2015
For GMC Savana 2500 6.0L V8 2008 2009-2010 2013-2016
For GMC Savana 3500 4.8L V8 2008 2009-2015
For GMC Savana 3500 6.0L V8 2008 2009-2016

OE/Part number：
234-4243, 234-4336, 2344243, 2344336, 12609477, 12609949, 12612571, 12599204, 12599866

Specification：
Wire Quantity: 4
Package Size: 18*12*6
Placement on Vehicle：Upstream, Downstream

Feature：
【High Quality Mateial】The oxygen sensor is equipped with a stainless steel housing. Durable and corrosion-resistant, ensuring your engine's long-lasting and stable performance.
【Easy Installation】The oxygen sensor threads have been pre-coated with anti-seize lubricant. Install directly to save your installation time. Equipped with cover protection to prevent lubricant from being affected during transportation.

Package included：
4 X Oxygen Sensor
2 X 234-4336 Upstream
2 X 234-4243 Downstream

Note：
Professional installation is highly recommended.
Even if your car is shown in the compatibility, pls also double check the fitment details and photos before ordering.