Sure. Parts-People sells genuine Dell parts and they have your keyboards in stock. Follow the disassembly and reassembly steps in Dell's Service Manual.Look on YouTube for videos showing disassembly of your model. But, be cautious with them, as some use steps or methods that are not appropriate. Use the videos to add to your understanding of what to do, but follow the steps in Dell's manual. Whenever touching components or working inside a computer, wear a grounded wrist strap, also called anti-static wrist strap, ESD wrist strap, or ground bracelet. It's a cheap and sensible precaution. Rest the laptop on an anti-static mat or at least a reasonable alternative such as corrugated cardboard. As that is a nine-year-old laptop, consider whether you might find a newer model for sale used for not much more than the price of your keyboard.
Hello, I have dell inspiron 3543, and i have some issue with my keyboard need to replace it,  Can anyone suggest which is the best suitable current models of dell keyboard can fit perfect for my laptop?
Dell inspiron 3543 laptop keyborad