drain plug

The OEM Ford oil drain plug is plastic unit that tends to break and leak. So you already know UPR came through to fix that. Product Link - https://www.lethalperformance.com/upr-3025-02-billet-drain-plug-with-magnetic-tip-and-drain-valve-mustang-gt-gt350-f150-5-0-3-5-2-7.html