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Sold as a set (kit covers both sides). This wiring kit adds the missing wires to your GM door harness for upgrading from small mirrors to towing mirrors. This is required for 2019 2020 2021 2022 Silverado and Sierra 1500 trucks upgrading to towing mirrors.
This kit adds the running lights, turn signals, and cargo lights features for the towing mirrors. This kit is all that is required for 2020+ Silverado or Sierra 1500 trucks originally equipped with bed illumination. 2019 trucks also need the RZY harness (reference below FAQ for more details).
Why spend $200+ on replacing your door harnesses when you can just add the missing wires for a fraction of the price? This harness can be used at a significant cost savings instead of installing GM OEM part numbers 84622369, 84622370, 84622376, 84622380, 84622371, 84622372
| Vehicle fitment | Fitment note |
Link to installation video (without forward facing spotlights): https://youtu.be/gst51r3Aa5Y
Link to installation video (with forward facing spotlights, with puddle lights): https://youtu.be/-g9xzdLTncI
Link to installation video (with forward facing spotlights, without puddle lights): https://youtu.be/1-kmGSMHH_Y
This harness is designed to work with 2019-2022 Silverado/Sierra 1500.
If you have a 2019 you will also need our RZY harness. You have the option to purchase it in the options above.
Please note, you must have power-adjusting mirrors for this harness to work (glass movement with switch). This does NOT work on 2022+ refreshed trucks.
This harness adds the turn signal, running light, and cargo light.
The features of your original mirrors will work plug and play, as long as you purchase towing mirrors also equipped with those features.
No, we do not currently have an upgrade path for power fold or spot lights.
Yes, but you will also need the RZY harness. You have the option to purchase it in the options above.
No! Our harnesses are specially designed to avoid the need for a reflash. Although the GM dealer may tell you it's necessary, it is NOT when using our harnesses.
Take a look in your bed and see if you have them. Those who don't originally have bed illumination require an additional harness (available in the options above).
We might be biased, but we think the choice is clear. Boost is better...because of this:
If you would like to speak to an associate via phone, please call us directly.
Monday - Friday: 9 am - 5 pm CST
(765) 831-2830
If your matter isn't urgent or it's outside of our customer service hours, you can email us at support@boostautoparts.com and we'll get back to you within 1 business day of your inquiry.
We tend to think we've got some of your questions covered. If we aren't available, you can always check out our company FAQ page