Ford Edge and Lincoln MKX owners from 2011-2015, if your power liftgate is struggling or not working at all, this replacement support strut is exactly what you need. This is for the left side rear tailgate and it replaces OEM part numbers BT4378402A55AL, BT4378402A55AJ, BT4378402A55AK, and their variations. The quality is seriously impressive - these struts undergo 50,000 life cycle tests and feature pure copper winding for stable, consistent performance. They're made from new high-quality raw materials that meet or exceed the original equipment standards, so you're getting something that'll last. Installation is straightforward if you're handy, or any mechanic can swap it out quickly. When your liftgate starts sagging, not opening fully, or making weird noises, this strut will get it working smoothly again. The company stands behind it too with a one-year unlimited mileage warranty, which is pretty generous for an auto part. Having a properly functioning power liftgate is one of those convenience features you really miss when it stops working, especially when your hands are full with groceries or gear. This replacement part restores that functionality without the dealership price tag. Definitely a solid fix for a common issue with these vehicles.