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Third brake light GM Advance Trailer plug-in T Harness for Truck cap- 215272
- Description
- Fitment
- PROP. 65
- FAQ
- EZ trust
Fits 2019–2024 GM Trucks (New Body Style) with GM Advance Trailering System
Simplify your truck cap or topper installation with the Third Brake Light GM Advance Trailer Plug-In T-Harness (215272), specifically designed for 2019–2024 Chevrolet Silverado and GMC Sierra new body style trucks equipped with the GM Advance Trailering System. This plug-and-play T-harness adapter provides a fast, clean solution for connecting a truck cap third brake light while preserving your factory wiring and connector functionality.
Save valuable installation time with the easy plug-in "T" interface design, allowing installation in as little as 9 minutes without cutting, splicing, or modifying your truck's original wiring. The T-harness integrates directly with your vehicle's OEM electrical system, maintaining factory integrity while delivering a dependable connection for your truck cap lighting system.
Designed for convenience and long-term reliability, this harness helps eliminate wiring hassles and creates a professional installation for truck caps, toppers, camper shells, and other compatible accessories.
Features:
✔ Fits 2019–2024 Chevrolet Silverado & GMC Sierra (New Body Style)
✔ Compatible with GM Advance Trailering System equipped trucks
✔ Plug-and-play T-harness installation
✔ No wire cutting or splicing required
✔ Preserves factory OEM wiring and connector functionality
✔ Installation possible in as little as 9 minutes
✔ Ideal for truck caps, toppers, and third brake light connections
✔ Fast, clean, and reliable installation solution
Upgrade your truck cap installation with a GM third brake light T-harness adapter designed for quick installation, factory-style integration, and dependable performance.
Fort Wayne, IN Location: 11319 Indianapolis Rd, Fort Wayne, IN 46809 - (260) 478-2709
Lima, OH Location: 2875 Baty Rd, Elida, OH 45807 - (419) 331-5925
We aren't paying some "official outfit" to put in a good word for us. We will show you ourselves who we are, what we do, and what our paying customers say about us. We build our own trust around here the hard way, so you can confidently choose the EZ way.
Ez Wheeler | Custom Truck, Inc. is a Mom and Pop Operation, established by Jerry & Dawn Kraft in 1993. Over the years new family members and friends have joined the team to help create an amazing working environment. We have acquired new brands, new buildings, and new relationships in this 20+ year endeavor to grow Ez Wheeler, a mom and pop shop, into a household name that our customers trust with their offroad traversing machines.
Acquired Brands: M&M TRUCK, CUSTOM TRUCK, LIMA CYCLERY
Locations: Fort Wayne, IN | Lima, OH
We’ve been DECKING out rides for ages now. Like our name implies, we make it EZ for you, you no longer need to worry about having to guess whether you have the right part or not?! No matter what your driving, we can tell you what your options are!

HERE AT EZWHEELER:
Here at EZ Wheeler we are what they call “good people”, our number one priority is customer satisfaction, because we believe that every man and woman should have the off-road rig of their dreams. We have worked hard to turn these dreams into reality, we have partnered with the top brands in the industry to be able to offer our customers the highest quality options.
Whether you're looking to lift or level your truck, add some new shocks, add protection like skid plates, or maybe just an interior accessory? Chances are, we can help, we offer; Truck Caps, Interior & Exterior Truck/Jeep Accessories, Drive Trains, Lift Kits, Lighting, Shock Absorbers, Steering Stabilizers, and all sorts of Suspension Parts. We have everything you could possibly need to build an incredible off road trail monster. With brands like Zone Offroad, JKS, Fox, and BDS Suspension, building that off-road rig is going to be EZ.
WE BUY AND SELL USED TRUCK CAPS:
If you are in north east Indiana or north west Ohio and looking for a used truck cap then you need to check out EZ Wheeler! With 2 locations, one in Fort Wayne, IN and one in Lima, OH, getting a truck cap couldn't be more EZ!
EZ Wheeler has one of the most extensive inventories of used truck caps and lids in all of North East Indiana and North West Ohio. Our caps are perfect if you want a truck cap but don't want to invest all the money into a new one. Our used truck cap inventory is frequently changing as we are always buying and selling caps so we encourage you to check in regularly to see if we have something to fit your truck! These are great to protect your items from the weather and bad actors. They also make great for campers.
Customer Satisfaction is our #1 Priority!
Above all else, Customer Satisfaction is our #1 priority! Being a small team of humans we sometimes make mistakes, but we ask not to be judged on those mistakes, but on the actions we take to make it right. You have a problem? We have a problem. We don't like problems. We will do anything and everything in our power to solve said problem for both of us. We want to create a long lasting relationship with every single one of our customers. Anything we can do for you, don't hesitate to ask!
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We honor manufacturer-advertised pricing — no surprises, no price gouging.
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Every part vetted by our in-house team with real install experience.
Correct Fitment, Always
Industry-wide catalog cross-referenced to your exact year, make & model.
Industry-Wide Catalog
Thousands of truck cap, topper & camper parts from top brands in stock.
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Biggest Used Inventory in the Region
Can't find it new? Our massive used & salvage inventory likely has it. Same warranty standards, lower price.
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More About: Wiring Harnesses
Upgrade or replace your truck cap electrical connections with a high-quality Truck Cap Wiring Harness designed for reliable power transfer and long-lasting performance. Whether you're installing a new truck topper, camper shell, or replacing a damaged harness, the right wiring harness ensures proper operation of brake lights, dome lights, cargo lights, third brake lights, and other electrical accessories.
Built with durable wiring, weather-resistant connectors, and dependable insulation, truck cap wiring harnesses are engineered to withstand harsh road conditions, moisture, vibration, and daily use. Easy-to-install designs help simplify electrical connections between your truck and cap, reducing installation time while ensuring a secure and consistent electrical connection.
Our selection of truck cap wiring harnesses is compatible with a wide range of truck caps, camper shells, and toppers from leading manufacturers. Whether you're upgrading an existing setup or performing a complete replacement, you'll find dependable wiring solutions that help keep your truck cap lighting and accessories functioning properly.
Features & Benefits
- Reliable electrical connection for truck caps and camper shells
- Supports brake lights, cargo lights, dome lights, and accessory power
- Weather-resistant construction for outdoor durability
- OEM-style and universal wiring harness options available
- Easy installation with secure connectors
- Designed for long-lasting performance in demanding conditions
Applications
- Truck toppers and truck caps
- Camper shells
- Commercial fleet vehicles
- Work trucks
- Recreational and overland vehicles
Find the right Truck Cap Wiring Harness for your application and keep your truck cap lighting and electrical systems operating safely and efficiently.
Questions & Answers
Have a Question?
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I have the gooseneck/5th wheel option with wire connection in the truck bed. Will this cable work with both my bumper location and my bed location?
This one does not use the 7way plug, it uses the plugs in the taillight harness to get the brake signal
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Will the harness 215272 fit my Silverado 2500hd custom 2023 My camper shell have a 3 brake light and led dom light
Yes, it will work on that vehicle, however, this harness does not give you a dome light wire, You will have to run that yourself.
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Will the Harness 215272 also connect to the OEM harness to operate the Lock and Unlock feature on the LEER topper? Is there an estimated date when this harness will be back in stock?
The Harness 215272 will only do the third brake light. At this time, the only way to hook up the keyless entry is to hardwire it to the truck.
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does this work with the 2023 canyon?
i would say you need the 300100: Click Here
