Only Trailer Brake Lights Working when Connected to Tow Vehicle  

It sounds like a short, ground problem, or wiring issue. There are some things you can check to determine where the issue is. First, disconnect the trailer from the tow vehicle. Then make sure that the vehicle side trailer connector is clean and…

Yes, what you described is exactly how to ground a trailer light that replaces a light that used to ground through the mounting hardware. Just run the ground wire to the mounting hardware and you'd be good.

Since the signal and brake lights are working but the taillights are not, it sounds like you may be experiencing a ground issue. A weak ground can be just strong enough to provide some of the lighting functions but not all of them. If a ground…

Running a direct ground up to the trailer tongue or junction box would certainly work, but the only time I'd see that as being necessary is if the lamps were connected to a non metallic structure or a metallic structure that wasn't directly…

You will need to use a circuit tester, item #PTW2993 if needed, to test the wires exiting the trailer to figure out the wiring configuration with the trailer hooked up to the truck and the running lights on. You will probably find that you have…

It sounds as if there is a weak ground connection somewhere on the trailer. Ground issues normally show up when there is more load on a system. Your situation is a perfect example of that. With the running lights on already drawing power, stepping on…

I've never heard of an actual third brake light connector on a camper shell to plug in on a truck and we don't carry any parts to do that. The light generally needs to be hardwired into the truck's brake light circuit. The issue with this…

You will need the Red LED Trailer Clearance or Side Marker Light #328-K-52 or Amber LED Trailer Clearance or Side Marker Light #328-K-51 for your 2018 Forest River Sunseeker motorhome. These lenses have the same Top Command SAE-AP2-16 markings on the…

The manual lockout on your Atwood 85778 surge brake coupler is there so that you can back up the trailer without the brakes locking up on you. Yes you can safely tow your trailer with the broken manual lockout, you just have to make sure you…

If your current springs have 5 leaves then going to a 7 leaf spring will increase the height of the trailer a little and make the trailer more susceptible to sway. Regarding capacity if you go with springs rated higher than what is required it will…

I did some checking and the hub/drum we offer that will work for you is the part #8-430-5UC3. This uses the same bearings as the 8-415 and will be an exact fit aside from the fact this is a non-ABS setup and the 8-415 came in an ABS setup and non-ABS…

According to my contact at Fantastic Vent the correct replacement lift motor to use in your vent is part #FVK6010-81, not item FVK-6050-80. The replacement motor does operate at a higher 17-RPM speed. Since your fan is of a lower rpm and manufactured…