Go to the GM Parts Center webpage, enter your vehicle details and select the part you are looking for, and the search output will include the part number. This GM Parts Center webpage is part of the Revolution Parts website, which sells OEM parts online.
Go to the GM Parts Centre webpage of the Revolution Parts website. On the left-hand side is a box headed Search by Vehicle with input areas Choose Year, Choose Make and Choose Model below. In the process you will also be asked for the trim and the engine/transmission information. With these five pieces of information, the website will produce a series of parts categories such as body, brakes, clutch, cooling system and electrical. Select the category of parts relevant to your parts search, and a final set of more specific product categories appears.
For example, within the brakes category of parts for the 2010 Hummer H3T were anti-lock brakes, front brakes, parking brakes and rear brakes. Selecting the relevant specific category then produces the various parts that fall into the specific category. The parts that are listed have the part name and description, as well as the part number itself. Also useful is that where there are many parts within the specific product category, there is a depiction of the parts