Wiring harness adapter to enable the use of 22 pin tow mirrors on an 8-pin factory connector for 2015, 2016, and 2017 Ford F-150 trucks. Functions that will work with this adapter are: power mirror positioning, heated mirror glass, and turn signal. Spotlights, puddle lamp and park lights are not available on the factory 8-pin connector but the conversion adapter has pigtails to have these connected by the installer if desired. This harness is ideal for the installation of oem and aftermarket multi-function 22-pin mirrors that usually come on more luxury trims of the F-150 line. There is no need to cut and splice wires, these adapters are a perfect match to your factory connectors. When upgrading to tow mirrors for your Ford F150, its best to acquire the 22-pin tow mirrors and use this adapter, this since the 8-pin tow mirrors are very limited on features. Quantity: 1 harness for one door/mirror. Please note the item is packed individually for use on one mirror; If you need two harnesses for both right and left mirrors then you need to add quantity of two into your cart. For 2018 and 2019 F-150 trucks please search amazon for ASIN B07N8C5N4Z.