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Leer /
300100
Third brake light 7-Way Interface plug-in T Harness - 300100
$134.99
In Stock
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- Description
- Fitment
- Instructions
- PROP. 65
- FAQ
- EZ trust
Upgrade your truck and camper lighting system with the Third Brake Light 7-Way Interface Plug-in T Harness – part number 300100. Specifically designed for most trucks with 7-way trailer plugs, this harness ensures seamless integration for your camper or truck cap's third brake light and auxiliary power requirements.
Key Features:
- Universal Fit: The 300100 fits a wide range of trucks with 7-way trailer plugs, providing reliable brake light and auxiliary power connections for camper tops and truck caps.
- Plug-and-Play Installation: Designed for easy installation behind your truck’s bumper, the T harness connects directly to your truck’s existing trailer wiring, making setup quick and hassle-free. No need to mess with complex wiring or cut any factory connectors.
-
Compatibility:
- Works with most trucks that feature 7-way trailer plugs.
- Compatible with popular models, including many Chevy, GMC, and Dodge trucks.
- Specifically, fits 2008-2019 Chevy/GMC trucks and most 2007+ vehicles with a 7-pin trailer connector.
- Brake Light and Power Supply: Provides a dedicated 12V power supply to your camper or truck cap's LED center stop light and auxiliary systems like dome lights.
- Maintain External Trailer Plug Functionality: The T harness installs behind the bumper, preserving the use of your truck's external trailer plug. This ensures no interruption in your towing setup while powering the third brake light and other accessories.
- Two Connector Types Included: Includes both 6-pin and 4-pin connectors to accommodate various brands of camper tops or truck caps. The 6-pin is for the Leer fuse box, while the 4-pin works for most other brands, ensuring a flexible and adaptable solution for your specific needs.
Important Notes:
-
Not Compatible With: The 300100 is not suitable for newer vehicles equipped with smart towing or advanced trailering systems, including:
- 2020+ Chevy/GMC trucks with Smart Tow and Advanced Trailering systems.
- 2015-2024 Ford F-150, 2016-2024 F-250, and 2016-2023 Toyota Tacoma and Tundra trucks.
- Alternate Option: If you own a 2020+ Ford, Toyota, or other newer vehicle with a Smart Tow system, consider the 300200 model, which includes additional wiring to connect directly to your truck's battery and bypass the advanced towing system.
Why Choose the 300100?
- Efficient Power Delivery: The T harness provides constant 12V power to keep your truck cap's accessories powered, from brake lights to dome lights, ensuring everything operates smoothly while towing.
- Perfect for LED Lights: Ideal for truck caps or campers with LED third brake lights that need a dedicated power source.
- Durable & Reliable: Crafted to withstand the rigors of the road and outdoor use, this T harness is built for durability, providing long-lasting performance for your truck and camper lighting needs.
WARNING: Cancer and Reproductive Harm - https://www.p65warnings.ca.gov/
We would be glad to assist you and do a industry wide search for your specific needs, just call (260)478.2709 or hit the chat button in the lower right hand corner.
Yes, please send pictures of the unit, including the manufacturer base plate, click here to email, or click "chat" in the lower right hand corner and upload the pictures in our messenger.
We have two locations:
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
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
Saturday, 9-11am.
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.
Good Product
Perfect to replace the originals on my ute canopy. Very happy with product and delivery.
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Great fit, easy install
Great fit, replaced the old handles. I purchased a used ATC camper shell for my 17 Ram 2500. The owner did not have keys for the old handles. I purchased these and they fit perfectly. They came with little covers for the handles for the weather, not sure how long they will last on there or if I will lose them but seems like a nice gesture. Keys are nice and the locks lock smoothly. Overall very happy, installed in minutes.
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Bien
Me gustó quedo todo perfecto
Great to work with! Drove from Erlanger, KY didn't have an issue with our truck bed topper fitting. Very friendly and inviting. Talk to them about the F-16 fight jets thats fly behind their business 😉
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My second hitch install with EZ Wheeler. Very professional and accommodating. Dawn went out of her way to make sure the parts arrived in time for the install. Thank you
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Genau wie beschrieben
Relativ schnell geliefert und preisgünstig aus den USA
Stopped in the Lima, OH location to look at a couple caps. I bought the one I thought I would it was advertised well and the online video shown was accurate and truthful. It was totally worth the hour and forty minute one way trip in the middle of the day. The staff was great, helpful and truly fun to deal with. I also picked up a great set of BMX wheels, yes they carry BMX stuff at this location as well , Awesomeness!!! Travis was Awesome, Dawn was a pleasure talking with over the phone and had the chance to meet her as well and she was a sweetheart. The young lady at the front desk was a treat to talk to as well. The young Tech that installed the cap was professional friendly and a pleasure to talk too as well. I definitely will make the trip again to visit and find something I need. Great work to all the staff in person and over the phone!
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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!
CODE: 300100
Brand: Leer
Product Type: Wiring Harness
Product Weight: 0.75 lb
Categories: All, Out of Stock, Truck Cap Wiring Harness
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✦ Why Choose EZ Wheeler
MAP Pricing Guaranteed
We honor manufacturer-advertised pricing — no surprises, no price gouging.
Certified Technicians
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.
2
Locations
30000+
Parts
99.99%
Satisfaction
Biggest Used Inventory in the Region
Can't find it new? Our massive used & salvage inventory likely has it. Same warranty standards, lower price.
Our Locations
Location 1
📍 Fort Wayne, IN
Location 2
📍 Lima, OH
Schedule Pickup → Get Fitment Help
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.
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