Buying parts for your vehicle can be a little difficult. There are so many specifics that you need to know in order to make sure you get just the right part. There are some areas of your vehicle where that isn't as crucial, but you need to get exactly the right thing when it comes to engine parts. If you don't get the right part you're going to end up frustrated and angry, and you may also be out money if you bought something that you can't return. Rather than deal with that on top of trying to fix a vehicle engine, make sure you take careful note of the part you need.If you don't know the kind of engine you're working on, or information about the vehicle it's in (or came out of) you may have a very hard time getting the right engine parts. Most parts supply stores will be able to help you