blueyedevil911

Ok I did some searching before getting on here to ask for help. Trying to do some maintenance and repairs myself and save some $$$. I have a 2003 Silverado and am getting the CEL and a code P0449. I know what this means but am having a issue finding the part. I want to replace it but I have found no place that lists the ac delco part #. Also the Chilton manual mentions a vent hose and electrial connector but the picture doesn't show the electrial. Does anyone know if this part has one and can give me a part # to use?