A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…
The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…
The OEM prep package consists of 4 "pucks" in the bed of the truck that will allow you to drop in puck style hitches for easy installation and removal, that gives you a completely clear bed when not in use. The B&W Companion OEM 5th…
Hey Teo, we have a solution for you but we don't have any harnesses that work as both a tow bar lighting kit and a trailer wiring kit. So what you'd want is the Curt part #C96JR for the tow bar lighting and then for the trailer wiring…
Hey Jeff! The Curt #C13409 will not completely block the kick sensor on your 2025 Subaru Forester Limited. However, I would expect to have to place your foot on either side of the receiver to activate it. The same is true for any hitch you choose to…
The best brake controller option to go with is one that activates the brakes proportionally instead of time delayed. A proportional brake controller will activate the trailer brakes at the same time and with the same intensity as the tow vehicle…
If you just need a 4-pin to 7-pin trailer wiring adapter, then you can use part #C57672. This will plug into the 4-pin trailer connector on your brother's vehicle and give him the 7-pin socket for the trailer. Keep in mind, this will only give…
You will have to go with a sliding hitch to allow the trailer to make tight turns. For a trailer 8 feet wide the only bed length that's going to allow 90 degree turns without a slider is a stationary hitch. That being said you have two options.…
Hello James, I can definitely help with that. Roadmaster does offer a D-ring adapter that will work with the Eagle 8000 tow bar. Here are the parts I recommend for flat towing your 2013 Wrangler Sport: - Adapter for Jeep D-Ring Bumper Mounts to…
Yes, it will Randy. The Dometic Air Distribution Box for RV Air Conditioners item #DMC43ZR is compatible with Dometic Penguin II ductless AC systems. What kind of trailer or RV do you have?
Hey Steve, Yes! The Roadmaster Falcon All Terrain Tow Bar is going to work directly with the base plate #RM-521453-5. Roadmaster makes their tow bars and base plates compatible for an easy install, so you will have no issues using them together. The…
Hey Kenneth, the first thing you need to flat tow your 2025 Jeep Wrangler is a base plate kit like the Roadmaster part #RM-521453-5 which is a confirmed fit and easy to use. In addition to the base plates, you will also need a compatible tow bar,…
Your Go-To Guide for Trailer Wiring, Vehicle Harnesses, and Brake Controllers
Whether you're installing trailer wiring, upgrading to a 7-way connector, or adding a brake controller, we’ve got the electrical parts you need to tow safely. Find custom-fit vehicle wiring harnesses, trailer-side connectors, junction boxes, wire management tools, testers, and complete wiring kits. From 4-way to 7-way adapters, brake controller wiring, and vehicle-specific harnesses, our gear is tested and ready for your next haul.With over 75 years of assisting our neighbors and customers, over 1 million photos and videos taken to make sure you’re getting exactly what you need, and over 35 thousand installations completed, we’ve got the product know-how and experience to help you make the right choices for the job at hand.
What’s the difference between a 4-way and a 7-way trailer connector?
A 4-way connector handles basic lighting functions: running lights, left and right turn signals, and brake lights. A 7-way connector includes these functions plus additional circuits for things like electric trailer brakes, reverse lights, and a 12-volt power supply.
How do I wire my trailer lights with a 4-way plug?
Typically, the wiring colors are: white for ground, brown for running lights, yellow for left turn and brake lights, and green for right turn and brake lights. However, it's essential to test each wire to confirm its function, as colors can vary.
How do I route the power wire for a trailer wiring harness?
You can route the power wire under the vehicle, through the vehicle's interior, or directly from the battery if it's located in the trunk. Ensure the wire is protected and avoid areas with excessive heat or moving parts. If you need more information on properly routing the power wire for your trailer wiring harness, be sure to check out this FAQ, Routing the Power Wire for a Trailer Wiring Harness.
Do I need a brake controller to tow a trailer with electric brakes?
Yes, a brake controller is necessary to manage the trailer's electric brakes. It ensures the trailer brakes engage proportionally with your vehicle's brakes, enhancing safety during towing.
What’s the purpose of a brake controller installation kit like the ETBC7?
The ETBC7 kit provides the necessary components to upgrade from a 4-way to a 7-way connector, allowing you to install a brake controller and access additional circuits needed for towing trailers with electric brakes.
How do I maintain my trailer's electrical system?
Regularly inspect connectors for corrosion, ensure all wiring is secure and undamaged, and test lights before each trip. Using dielectric grease on connections can help prevent corrosion.