When your vehicle is in need of an expensive repair, you may be tempted to consider buying used auto parts. There are some pros and cons to replacing parts of your vehicle with used parts, mostly related to the financials of it. Here are some things to consider before you purchase used auto parts for your vehicle repair.

1) Is Your Car Under A Service Contract?

If your car is a lease, used auto parts may be in violation of your lease agreement. Your lease should cover routine maintenance and repairs, but damage you cause won't be covered in your lease coverage. Unless you plan to buy your vehicle at the end of your lease term, you'll be slapped with a penalty for unauthorized vehicle parts, so you better buy new parts.

If your car is still under warranty from the manufacturer, the addition of "foreign auto parts" could be blamed for malfunctions that would otherwise be covered under your warranty. It is best not to risk voiding your warranty by paying for direct replacement parts.

2) Is The Part Returnable?

If you don't know a lot about cars, you might accidentally pick the wrong part. Even worse, the part you buy may or may not work. There aren't any real risks associated with picking up a used bumper or a rearview mirror, but electrical components for your car can be hit or miss.

If you do buy a used transmission or a radiator, find out what guarantees are offered that the item will work. You may be limited to a 30 day return or trade guarantee, but that is long enough for you to install the part and find out if it functions to suit your need.

3) How Much Is The Labor?

If you know how to install an auto part yourself, then labor cost is not a concern. Keep in mind that not all auto shops will accept outside parts, and they may not offer used parts either. If this is the case, you should consider if an auto shop that accepts outside parts is going to give you a good price for the labor.

How much it will cost to put in a part, and for it to potentially not work at all? A non-working part would need to be removed, and you would have to start over with a new part. (Your labor hours will start adding up quick, and your car still wouldn't be fixed if the used auto part turns out to be a dud.) Consider the labor hours required for your repair, and evaluate if the used part would still be worth doing if you had to install it twice.

If your used auto part is installed without a hitch, you can save a significant amount of money on the markup of buying new. It is a gamble however, and used auto parts should be avoided when your car is under warranty or a lease contract.