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…
It sounds like you are speaking of the wires for the brake magnets. If this is correct, you will need to connect one of the wires to the brake controller output wire on your trailer connector and the other wire will need to be grounded to a clean…
That's a very good question, we tend to be extra cautious and say to use 10 gauge wire because that would be more than enough. When you get into longer trailers that will end up using a lot of wire the heavier gauge wire becomes more necessary.…
Yes, it will work. You'll just need to cut the Lance 6-pin connector out and rewire it into the etrailer Trailer Wiring 7-Way Upgrade Kit w/ Junction Box and RV Style Connector item #e99011. Here are the individual functions of that Lance 6-pin:…
The only difference between 7-Way Utility and 7-Way RV is the color of the wires. The pin outs are the exact same so either would work just fine with the other. If you check out the picture I attached you'll see that the functions are all the…
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…
Since wire color codes are NOT universal, we always recommend wiring by function, rather than wire color. If you look at the Trailer Wiring FAQ article I have linked you to, you can see some diagrams showing the proper way to wire a vehicle and…
Hey Mark, thanks for reaching out, and good question. That “16/18 gauge” wording throws a lot of people off. The TowSmart 16 to 18 Gauge, 4 Conductor Wire #TS57QR isn’t all one size. It’s a 4-conductor cable with mixed gauges inside, two wires are 16…
In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.
Hey Gary, thanks for reaching out. No, nothing is missing from the #C96GJ kit. Curt uses the term “T-Connector” pretty broadly for a lot of their plug-and-play harnesses, even when they are not a true tee-style splitter like you were expecting. On…
Welcome back Jordan! I have an alternative for you but we do not have any Ram 7k jacks that can be bolted on. Just welded like item #TJD-7000S and pipe mount like item #TJDP-7000S-B options. For a 7,000 lbs capacity square jack that can be bolted on,…
Thanks for reaching out Robert, I did some digging and here's what I found. Optronics bracket #A65PB is a single wire design that grounds through the mounting hardware. I checked through Optronics for the 2 wire to find that it's been…
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…
It sounds like you are speaking of the wires for the brake magnets. If this is correct, you will need to connect one of the wires to the brake controller output wire on your trailer connector and the other wire will need to be grounded to a clean…
That's a very good question, we tend to be extra cautious and say to use 10 gauge wire because that would be more than enough. When you get into longer trailers that will end up using a lot of wire the heavier gauge wire becomes more necessary.…
Yes, it will work. You'll just need to cut the Lance 6-pin connector out and rewire it into the etrailer Trailer Wiring 7-Way Upgrade Kit w/ Junction Box and RV Style Connector item #e99011. Here are the individual functions of that Lance 6-pin:…
The only difference between 7-Way Utility and 7-Way RV is the color of the wires. The pin outs are the exact same so either would work just fine with the other. If you check out the picture I attached you'll see that the functions are all the…
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…
Since wire color codes are NOT universal, we always recommend wiring by function, rather than wire color. If you look at the Trailer Wiring FAQ article I have linked you to, you can see some diagrams showing the proper way to wire a vehicle and…
Hey Mark, thanks for reaching out, and good question. That “16/18 gauge” wording throws a lot of people off. The TowSmart 16 to 18 Gauge, 4 Conductor Wire #TS57QR isn’t all one size. It’s a 4-conductor cable with mixed gauges inside, two wires are 16…
In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.
Hey Gary, thanks for reaching out. No, nothing is missing from the #C96GJ kit. Curt uses the term “T-Connector” pretty broadly for a lot of their plug-and-play harnesses, even when they are not a true tee-style splitter like you were expecting. On…
Welcome back Jordan! I have an alternative for you but we do not have any Ram 7k jacks that can be bolted on. Just welded like item #TJD-7000S and pipe mount like item #TJDP-7000S-B options. For a 7,000 lbs capacity square jack that can be bolted on,…
Thanks for reaching out Robert, I did some digging and here's what I found. Optronics bracket #A65PB is a single wire design that grounds through the mounting hardware. I checked through Optronics for the 2 wire to find that it's been…
Tidy up your setup with 7 blade trailer wiring, whether you're adding brakes, interior lights, or tying in an EOH system. Choose options like molded plugs and junction boxes with multiple ports, rubber grommets, and solid terminal screws for watertight connections and easy troubleshooting. For a smooth install, verify color-to-pin with a voltmeter, use heat-shrink butt splices or crimped eyelets, and note some cables can stiffen in cold or fit tight through a hitch bracket.
Some plugs are hard to feed through a hitch bracket, so check the bracket opening and be ready to mount elsewhere if needed. Molded plugs sealed tightly to the cable can help with water exposure. Cords can get very stiff in the cold, so allow extra slack. Illuminated plugs can confirm power at night but are hard to see in sunlight.
You can hardwire in a new lead or cut back to good wire and butt-connect the circuits. A junction box makes swapping out damaged cables easy and helps keep connections organized and protected. Seal connections with heat-shrink butt splices to reduce corrosion and improve reliability.
Don't wire by color—verify color to pins before terminating. Use a voltmeter and do a continuity test to map each function, then temporarily wire and confirm everything works before final connections. Pay attention to plug orientation. Terminals can take bare wire or ring/U-shaped terms. Use heat-shrink crimp splices and work over a tarp to avoid losing small parts.
Yes, a 7-blade setup with a junction box supports EOH brakes and a breakaway kit. Connect lighting, DC systems, and the EOH brake wire to the solid terminal screws using crimped eyes. Mounting near the EOH controller and breakaway kit keeps runs short. Multiple wiring ports with rubber grommets help keep it clean, watertight, and easier to troubleshoot.
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