2022-2024 Silverado/Sierra Tow Mirror Wiring Kit (Modify + RZY Harness)

2022-2024 Silverado/Sierra Tow Mirror Wiring Kit (Modify + RZY Harness)

Starting At
Sale price $ 154.90

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Choose Your Options:

Do you want the rear facing light to work as cargo only, or cargo and reverse?
GM designed them as cargo lights only, but we offer them as dual function if that is how you want them to funtion.
  • Ships Within 1-Business Day

This tow mirror wiring kit is all you need to add the missing wires to the door and cab of your 2022-2024 Chevy Silverado 1500 or GMC Sierra 1500 Refreshed truck. This kit will enable the running light, turn signal, and cargo light when upgrading from small mirrors to tow mirrors.

This contains our Modify Door Harness which will add the correct running light, turn signal, and cargo light wires to your factory door harness without requiring a new harness from the dealer. The kit also includes our RZY Harness which adds the corresponding running light, turn signal, and cargo light wires to the cab of your truck.

This wiring kit is all you need to get tow mirrors properly functioning on 2022, 2023 and 2024 Chevrolet Silverado 1500 and GMC Sierra 1500 trucks. Sold as a set (kit covers both sides).


Fitment - This product fits the following vehicles (Including T1 New Body Style):

2022 Chevy Silverado 1500 Refreshed (More Info: LD v.s. Refreshed)

2022 GMC Sierra 1500 Refreshed (More Info: LTD v.s. Refreshed)

2023 Chevy Silverado 1500

2023 GMC Sierra 1500

2024 Chevy Silverado 1500

2024 GMC Sierra 1500


This kit can be used at a significant cost savings instead of installing GM OEM part numbers 86789940, 85552148, 86789933, 86789932, 86789934, 85552145, 86789939, 86789941, 85552144, 86789935, 85552146, 86789943.


Our kit is designed to work with 2022 and newer Refreshed Silverado & Sierra 1500 trucks.

This kit is required for 2022+ Refreshed GM trucks and adds the necessary wiring to the door harness and the cab to upgrade to towing mirrors. Please note, that you must have power-adjusting mirror glass for this kit to work.

This kit adds the running light, turn signal, and cargo light function to your tow mirrors when upgrading from small mirrors.

The features of your original mirrors will work plug and play, as long as you purchase towing mirrors also equipped with those features.

Not with this kit unfortunately.

If you are looking to upgrade to power folding mirrors or mirrors with spot lights check out our Boost Auto tow mirrors HERE.

No! Our kit is specially designed to avoid any need for a reflash. 

Included with your order, you will receive our Modify Door Harness as well as our RZY Harness for 2022+ refreshed GM trucks. Both of these harnesses are required to get your towing mirrors working properly.

The kit is included as a set (both sides).

Why Choose Boost Auto?


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