Original equipment parts (OEM) parts are components used on or in a vehicle that come from the original equipment manufacturer. Understanding the difference between OEM parts and aftermarket parts can ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Khadija Khartit is a strategy, investment, ...

While there are certainly limits on how—and how much—aftermarket sellers can use OEM trademarks to communicate key information about aftermarket parts, the legal boundaries for aftermarket sellers are ...