LockSmart Trunk Lock Cylinder (TL48100) As a global manufacturer of original equipment ignition products, complete quality control is maintained through the manufacturing process from componentry to finished product All door locks are perfectly matched to the original for precision installation Professional quality construction using solid brass tumblers, chrome plated brass keys, die-cast zinc lock cores and multiple, randomly assigned key codes ensures superior operation Decades of industry leading research and development focused on meeting the technicians needs