Brand new ACDelco Professional trunk lock cylinder – comes in its original packaging, never used.
Fits the 1999 Buick LeSabre like a glove, and yes, it includes the keys so you're ready to go right out of the box.

Chrome-plated face plate gives it a clean look.
Length is about 5.
69 inches, and the max hole diameter is 0.
78 inches – so it fits the factory hole without any mods.

No programming needed – it's all mechanical.

If your trunk lock is sticky or broken, swap this in and forget about it.