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Tow Mirror Wiring Kit (Modify + RZY Harness) | 2022-2025 Silverado & Sierra
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This tow mirror wiring kit is all you need to add the missing wires to the door and cab of your 2022-2025 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, 2024 and 2025 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
2025 Chevy Silverado 1500
2025 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.
- Fitting 2022-2025 Chevrolet Silverado and GMC Sierra
- Sold as a set (Left & Right Side)
- Detailed Instructions Included (See Installation Tab)
- 1-Year Warranty
- Item Condition: New
- Free Shipping (Lower 48 States)
- Made in the USA
Link to installation video: https://youtu.be/f1jOrWRMtoY
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FAQ
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?
Reviews
- Reviews
- Questions
United StatesGreat refections
The installation is a process but if you take your time and follow the instructions you will be okay. When installing the wires into the pin locations be very careful to insert them in the right holes, count the holes down and over twice. The customer service techs are top notch and are willing to help in every way. Love the new mirrors, all the functions work as ordered.
CanadaGreat service department
Talked with the fellow in the service department and he made sure that I received the correct part. He was very nice and helpful. Delivery was quick.
United StatesTow mirror install
Yes I did receive the wiring. Been away but now I’m back and about to install it.
United StatesRefreshed Silverado Tow Mirror Dilemma
I have a 2023 LT Trail Boss. It came with the car style mirrors. I did not want to loose my cameras. GM does not support tow mirrors for my model. I had to make a hybrid placing the guts from the DQS (high end) mirror into the DPO (manual fold) mirror. This gave me all my original features. The Boost Modify + RZY Harness gave me the rest. All is not perfect, the cameras are on a skewed angle and I'm working with GM to fix that. Your harness was great!
CanadaHelpful service support
Very good and very informative instructions