Ford F-150 Tow Mirror Heated Lower Glass Upgrade Kit (2015-2023)
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This kit is to allow you to add heated lower glass to vehicles not originally equipped. The kit comes with both pieces of glass, as well as the required adapter harness. Boost Auto Parts offers a full range of replacement tow mirror lower glass compatible with all aftermarket Ford F150 mirrors. These also fit OEM 2015-2023 F150 mirrors.
This glass has the backing which will snap onto OEM and aftermarket mirrors. The glass is equipped with defrost.
Cross References to Ford OEM numbers: FL3Z-17K707-J & FL3Z-17K707-K & FL3Z-17K707-U & FL3Z-17K707-V
Link to installation video: https://youtu.be/Ef7eakuNOSs
This mirror glass fits the below Ford F150 OEM applications and is compatible with similar aftermarket mirrors fitted for other generations (including Powerstroke).
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Power fold/ extension Mirrors
Great! Simple, and easy install.

Heated mirrors
These mirrors work great. The heated glass works great as well.
Haven't tested out the function yet, however I'm sure it will come in handy if you see any cold weather mornings.

Good value.
I bought the upper and lower defrost.