Steps

1. 1
   Find some parts to sell. If you already have car parts laying around at home then that is a great start. However if you want to make some good cash, you can buy a parts car and part it out. Craigslist.org is a great place to get a car for a few hundred bucks and you can make some decent money off of it.
2. 2
   Clean the part off, and take some decent pictures of it. Make sure that you keep track of what car each part comes off of and which cars it is interchangeable to. The more cars the part fits, to more buyers there will be for it.
3. 3
   Go to www.Partsme.com and create an account. Many people used to sell on Ebay motors, however with the extremely high fees many are switching to alternatives. www.Partsme.com has no listing fees, so you do not have to pay unless your item sells. And the final value fee is much less than ebay would take.
   
   
4. 4
   Start listing you parts on www.Partsme.com and watch the money come in.
5. 5
   There are many ways to increase the amount of views to your auctions. One way is to post a craigslist ad with a link to your auction. Also you can find an online forum that relates to the parts you are selling. For example, if you are selling Honda Civic Parts- you can go onto Honda-tech.com marketplace section and list your parts on there and get hundred of visits a day. Doing these two thing alone will draw hundreds of people everyday.
   
   
6.   6
   When your item sells, make sure you ship the item safely and use the right amount of packing material.
7. 7
   Last, have fun and make a lot of money. There are people who have selling car parts as their full time jobs. You will learn which cars are much more profitable as you go along with it.