The Bottom Cover Assembly includes all the plastics found underneath a laptop. This may include parts such as rubber feet, memory covers, and latches. Due to the complexity of installation, we recommend that you contact the Dell technical support team prior to purchase. You need to make sure that you are buying the right kind of bottom cover assembly. In order to ensure compatibility with your system, we suggest that you use the System Drill Down or the Service Tag look up feature in the Parts For Your Dell tool. Please note that some of our replacement products are provided as kits or assemblies. These kits may contain additional parts required for installation. In case a product is not sold as a kit or assembly, it may require complementary parts for ease of installation. Refurbished Spare Parts are parts retrieved from Dell-branded systems that have been returned, some of which have never been used. All Dell refurbished spare parts are certified to comply with all original Dell factory performance specifications and come with a 90-day limited hardware warranty. Dell’s limited hardware warranty covers defects in materials and workmanship in your Dell-branded hardware products. For additional details on our warranty services, please visit www.dell.com/warranty .