I'll break down
CL1Z-15K867-A
The CL1Z indicates Expedition.
The 15K867 indicates the basic part, in this case, a front bumper sensor harness
The A is the revision.
DG9Z-15K867-B is the same part for a Ford Fusion.
9C2Z-15K867-AA is the same part for a E-Series van
AL7Z-15K867-A is the same part for a
Lincoln Navigator. I'd probably be comfortable with using this on an Expedition.
AL7Z-15K867-A shows available on RearCounter.com at a Ford specialist in Chattanooga TN called KC Motor Co. (561) 722-6208 $37.88 + shipping
https://www.rearcounter.com/AL7Z-15K867-A-parts564793.html
Amazon also shows several from 3rd party sellers for $50+ including shipping, and possibly the option for painless return if incase there is something completely different between the Navigator and Expedition front parking sensors. I don't have them so....