Ford Signal & Running Light Mirror Harness (Tow & Small Mirrors) // 2015-2020 F150

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This wiring harness kit converts the front lights on your 2015-2020 F150 into dual functioning signal and running lights. Installation only takes roughly 10-minutes (except for 8 pin trucks) and can be performed by anyone following our videos. 

  • The tow mirrors originally work as running light only on the front, however this kit allows them to operate as running light and turn signal (while retaining the two rear facing LED's to work as signal only)
  • The small mirrors originally work as turn signal only, however this kit allows them to operate as a running light and turn signal




Fitment includes the following F150 Ford Trucks (Ecoboost Diesel trucks also included). 

Vehicle fitment Fitment note


Tow Mirrors (22-Pin): 10 Minutes Per Side

Small Mirrors With Puddle (22-Pin): 10 Minutes Per Side

Small Mirrors Without Puddle (8-Pin): 30 Minutes Per Side

If you have small mirrors (not towing mirrors) and you have a puddle light (light on the bottom of the mirror) then you have 22-pin mirrors. ALL 22-pin small mirrors are equipped with the puddle light.

If you have tow mirrors with ANY of the following features (that work properly) you have 22-pin mirrors and your truck is properly wired:

• Spot Light

• Running Light

• Puddle Light

• Blind Spot Monitoring

• Power Fold

• Power Extend

If you are unsure whether your mirrors are 8-pin or 22-pin, you can remove the trim cover and send us a picture of the connector plugged into your mirror.

We recommend purchasing our 8 to 22-pin adapter available here. This will allow the front light to operate as running light only, and the side LED's to flash.

We do not have a kit that is designed for this exact use case, however, our 8 to 22-pin adapter will allow you to add the running light.

We do offer mirrors with the dual-function harness pre-installed for 8-pin trucks available here.

Please contact us with a video showing how the light is operating on your truck with the turn signal on. All 8-pin towing mirrors are wired differently, so in order to get you the correct kit we need to see exactly how your mirrors are operating.

Yes, we offer mirrors with this harness pre-installed internal to the mirror so they are just plug-and-play. You can check them out by clicking here.

No it will NOT! We do not currently have any dual function harnesses compatible with Raptors.

We recommend checking underneath the mirrors on your truck to verify this, If you have puddle lights you will be able to spot them as seen in the graphic below. 

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Customer Reviews
4.9 Based on 41 Reviews
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Hector G.
United States United States


They look great and nice. Very easy to install

Stephan S.
United States United States

Running light harness

Easy to install, works great. Love the look

Patrick R.
United States United States

Easy and works

One of the crimp connectors was broken but it was easy to splice. YouTube video made it easy.


Boost Auto Parts

Hello Patrick, We're sorry to hear that one of your connectors arrived damaged. We apologize for this inconvenience. Please give our Support team a shout if you require any further assistance. Thank you, -The Boost Auto Team!

Jason D.
United States United States

Great product, quick and easy install.

Product is good, arrived faster than anticipated and the installation video was perfect. VERY easy to install and looks fantastic, exactly what I was looking for.

Josh M.
United States United States

I recieved in good timing and had a good experience connecting it up. Works as it should. It adds that missing thing. Looks really great.


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