Just replaced my cracked Ford F150 mirror with this maXpeedingrods part and it works perfectly! This is for the driver side only and fits F150 models from 2015-2021 with blind spot detection. The heated function works great - no more waiting for frost or fog to clear on cold mornings. The blind spot detection system transfers over seamlessly from my old mirror, so all those safety features still work exactly as they should. Installation was surprisingly easy - it took me about 15 minutes with basic tools. You just carefully pop off the old mirror glass (be gentle with those clips!) and snap this one into place. The wiring connectors match up perfectly with the existing harness. The part number FL3Z17K707AH matches the OEM specification, and the quality feels solid. If your mirror is cracked or the blind spot indicators have stopped working, this is a much cheaper solution than going through the dealership. Just make sure you get the correct side - this is specifically for the driver side with blind spot detection. Really impressed with how everything works exactly like the original!