2014 – 2019: DL8 – TOW Mirror Upgrade PnP Harness


Looking to upgrade your outside side mirrors?  These custom harnesses will simplify your installation, making it Plug and Play!  Simply swap your door harnesses and swap your mirrors!

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8 reviews

Available on backorder

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These door harnesses are custom built for your truck and the mirror upgrade you are looking to achieve.  Installation is Plug and Play.

If you currently have DL8 Mirrors and want to upgrade to Tow Mirrors, these are the harnesses you needed!  These harnesses are designed to upgrade to GM Factory DPN (manual fold) and DQS (power fold) Tow Mirrors.  If you are looking to upgrade to aftermarket tow mirrors, please contact us first to validate your configuration.

NOTE:  $100 is refunded if you send your factory door harnesses back to use once the upgrade is complete!  


2014 – Chevrolet/GMC 1500 Trucks (all cab styles) – **Additional Cabin/Under the Hood Harness required (Part # 23387133).

Early 2015 – Cheverolet / GMC 1500, 2500, 3500 (all cab styles) – **Additional Cabin/Under the Hood Harness required (Part # 23387133).

Mid Year 2015 (2015.5) – 2018 – Cheverolet / GMC 1500, 2500, 3500 (all cab styles)

2019 – Cheverolet / GMC 2500, 3500 (all cab styles)

2019 – Cheverolet / GMC LD (Limited Design – 2018 Body Style – all cab styles)

From this.

To this.

How-To Video Here!

Additional information

2.0625 lbs
10 × 7 × 5 in

Reviews (8)

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  • (verified owner)

    Dustin Stroud (verified owner)

    Thank you so much for the excellent demo videos and the quality harness that functioned as expected with both sides done in less than 1 hour.
    Also, awesome surprise in the box was a diode to connect in the BCM which makes the white lights function when in reverse. Of course this too came with large size color photo figures and was thoroughly explained. That took 2 minutes, maybe.

    Very satisfied with the expertise of Phil, the excellent product, and the outcome is phenomenal. Love it

  • Scotty Byrd

    Phil is an awesome guy. Helped me out on a Saturday to get this done correctly. Everything works just like intended and its like my truck is new to me all over again. Thanks Phil! Keep up the good work.

  • Shedrick

    Phil was Superb. He was a true professional throughout the entire process. He took the time to explain thr process and answer all of my questions. The install was amazing and exceeded my expectations.

  • Jim Miller

    Phil went above and beyond to help me add Tow Mirrors to my 2018 Silverado. The factors mirrors are amazing and Phil’s videos and help were top notch. Phil made this upgrade extremely easy to do! I highly recommend Phil and Harness Dr!

  • Nick G

    Phil is a great resource and provides excellent customer support! In my experience, he proved he cares about his customers and goes above and beyond to ensure the install process is successful. Truly exceptional customer service. I will do business with Phil again!
    Highly recommended

  • Casey

    Harnesses work phenomenal! I installed it myself & it was pretty simple! I highly recommend Phil for all you harness needs! Thank you very much for help with everything!

  • (verified owner)

    Les Crawford (verified owner)

    Harness works flawlessly. Easy to follow instructions with illustrations. Definitely worth the price. Would absolutely recommend this purchase.

  • Jamie P

    Very good service, awsome product, I ended up having an issue with my aftermarket mirrors and he went out of his way to ensure my mirrors worked. Got my refund everything went as plan would highly recommend his service