General Motors， DUCT， 98011738<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>This part is a Genuine GM Original Equipment Manufacturer (OEM) item.</li><li>The compatibility information by Amazon should be used for reference purposes only. To ensure compatibility， visit the sellers page to send a message containing the vehicles VIN.</li><li>2007-2010 Chevrolet Silverado 2500 HD</li><li>2007-2010 Chevrolet Silverado 3500 HD</li><li>2007-2010 GMC Sierra 2500 HD</li><li>2007-2010 GMC Sierra 3500 HD</li></ul></div><img src="http://ecx.images-amazon.com/images/I/513lKvLkklL.jpg" noproxy>