Dealing with a door that won't lock or unlock with the remote or switch? This A-Premium actuator replaces the rear left (driver side) door lock mechanism on 2004-2008 Ford F-150 pickups, the 2004 F-150 Heritage, and 2006-2008 Lincoln Mark LT models. It matches OEM part number 8L3Z16264A01BA and is built with sturdy plastic and metal components to prevent deformation and ensure reliable operation. Installation is straightforward if you're comfortable removing door panels — it's a direct plug-and-play swap that restores full power lock function. The actuator is tested to meet or exceed original specs, so you get smooth, sensitive locking/unlocking without the usual wear issues. Each purchase includes one actuator, and it's backed by a one-year unlimited-mileage guarantee. Before ordering, double-check your vehicle's year and trim to confirm fit. Fix that annoying door problem yourself and save on a mechanic bill.