Are you running your own car? If it is yes, then obviously you have to do regular maintenance of your car that requires you purchasing several parts at a regular interval. During this time, you should consider purchasing used auto parts rather than new auto parts that may cut a huge from your annual maintenance cost.
There are some advantages of replacing damaged auto parts of your car with used parts. Among various benefits, cost saving gets the top priority. If you want to purchase new parts, you may have to pay double than the used parts. This is the main reason why auto owners want to purchase old parts. Sometimes, it may save half of the price of new parts.
However, if you have any plan to replace your old car within one or two years, then it would be better for you to invest less on it. In such cases, you should give priority to purchasing a used one. But, you have to remember that you can't replace all damaged parts with used parts. There are some obstructions replacing parts like spark-plug and ECU sensors. You have to think about parts, which are durable and won't bother at all using for long time like engine head, cylinder, piston, and crankshaft and so on.
In some cases, new parts can rarely be managed from the manufacturer and even too much costly. You can easily find a good replacement of new parts from your nearby junkyards. Some automotive parts remain in good condition even though the car is damaged. If you can manage your required parts from the junkyard, then it would save a huge from your budget.
Some junkyards also sell used auto parts online leaving an option to you to find your required one easily from home. You can easily take that option to manage a good used one for the maintenance of your car. If you spend a little bit time online, you may find some junkyards selling auto parts at a very low cost.
You may also find some auto part stores selling used parts that have been machined or re-manufactured. Actually, they do machining of parts like damaged shaft and damaged gear teeth, and offer to customers at a very low cost. Though, these are technically used parts, but have got a new look and structure after machining. You can also think about such parts to cut your vehicle maintenance cost.