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…
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…
Hey Samar, the auto liftgate of your 2025 Toyota RAV4 PHEV will still function with the Curt hitch part #C77MJ installed but you will need to kick to either side of the hitch opening. What will you be using the hitch for?
When it comes to choosing between the Blue Ox Patriot #BLU37TR and the Brake Buddy Select 3 #HM39524, these systems are extremely similar in their setup and functionality. Both of these systems provide proportional braking in a compact and easy to…
Hey Christian, welcome to the world of RV-ing! So in addition to the Roadmaster Nighthawk #RM-676 you're also goin to need: - A baseplate kit, like the Roadmaster Direct-Connect Base Plate Kit #RM-521453-5. These attach to the Jeep itself so you…
Hey Adelaina! It can definitely be overwhelming but don't worry, I'm here to help. We can start with the hitch, wiring, and brake controller since they are the most important part. I recommend the following: -etrailer Trailer Hitch Receiver…
Hey John, thanks for reaching out! Before I dive into it, I just want to throw it out there that the Curt Spectrum #C36QV, Tekonsha Voyager iD #TK86DR, and the Redarc Tow-Pro Elite #RED65CR are all great brake controllers and you'll be happy with…
Hi Greg; we do carry a hitch and wiring for your 2025 Sienna. The best hitch is the etrailer #e56RR. This has a 2" receiver, bolt-on installation, and a matte black powder coat finish. It also comes with a limited lifetime warranty. For wiring…
Hey Bret! We don't sell the mounting bracket for the Primus IQ item #TK90160 anymore. It's part number 6927 so you should be able to find it online. As far as the relays go, the 7- and 4-Pole Trailer Connector item #HM40975 does not include…
Your Go-To Guide for Trailer and Vehicle Electrical PartsThe experts at erailer.com understand the complexity of selecting the right vehicle trailer wiring components amidst a flood of options. Whether you’re starting from scratch or adapting your existing 4-way or 7-way connectors, we’re happy to find you the right wiring setup and deliver it right to your door. Towing a trailer? Our Fitguide takes the guesswork out of finding what you need. Just tell us your vehicle year, make, and model, and we’ll tell you exactly what will fit.Towing a fifth wheel? We’ve got you covered here, too. Tell us about your truck, choose your hitch, and let us recommend the best wiring harness for your setup. Towing a vehicle? We’ve got everything you need to wire your flat tow setup, from taillight kits to braking systems. Plus, we’ll let you know if you need any additional custom-fit parts for your particular vehicle. Whatever you’re towing, our experts are here to help you figure out how to wire it. 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.
