Original equipment manufacturer

[3][4] Other-brand parts would be considered aftermarket, such as Champion spark plugs, DieHard batteries, Kinsler fuel injectors, and BMP engine blocks and heads.

These OEMs commonly use a procedure known as System Locked Pre-installation, which pre-activates Windows on PCs that are to be sold via mass distribution.

These were phased out in favor of recovery partitions located on the primary storage drive of the PC (and available for order from the manufacturer upon request) for the user to repair or restore their systems to the factory state.

[8][9] While a clean retail media of Windows can be installed and activated on these devices with OEM keys (most commonly using the SLP key that's embedded in to the system firmware already), actual OEM recovery media that was created by the PC manufacturer (not system-builder, nor retail Windows versions) typically only works on the PC model line that was designed for it.

Skateboard decks are primarily produced by a small number of specialized OEMs, such as PS Stix, BBS, and Dwindle.

[10] These manufacturers handle the entire production process, including sourcing high-quality wood, crafting molds, gluing and pressing multiple layers of veneer, and applying graphics designed by the brands to the decks.