Review of Hopkins Trailer Wiring - Trailer Connectors - HM20041 Video

Easiest way to explain the wiring colors of the Hopkins harness part #HM20041 is for me to just list what the wires color functions are as follows. White: ground wire Yellow: left turn/brake light Green: right turn/brake light Brown: tail lights…

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 Bargman 7-Way Molded Trailer Wire Connector #H20043 is 4 feet long. We also have the coiled 6 foot #WG54006-043 and the coiled 12 foot #WG54006-046 if you prefer a coiled cord.

If the junction box is 2-1/2 feet back from the front of the trailer then that would leave just 3-1/2 feet of the coiled cable #WG54006-043 to go from the front of the trailer to the vehicle and still have slack to make turns. That might not be…

Best option would be the Bargman 7-way part #WG54006-046 which has a molded 7-way on one end and then unconnected wires on the other. You could then wire this to the part #PK11604 based on the pinout that you need.

The auxiliary or back-up wire on a 7-way trailer connector like #HM20041, is used to power to things like interior trailer lights or other 12V accessories. It can also be used to power backup lights, but not many trailers are equipped with those.…

The yellow wire of the 7-way harness part #H20044 that you referenced goes to the center pin of the 7-way which is an aux circuit that is typically used for reverse lights if present on the trailer. Normally the red wire on a 7-way (RV standard…

It's a wire color difference but not a function difference on the pins of the 7-way. The difference comes from the fact that the two different styles are representative of two different areas that uses trailers. Traditional is usually seen…

The Trailer Hub and Drum Assembly part #AKHD-545-35-K is the correct replacement for an AL-KO 7230. In regards to the braking assemblies, I suggest getting a new pair, the Electric Trailer Brake Kit part #AKEBRK-35-SA. This option will save you…

They are basically the same. Harness #HM20041 looks to be replacing H20046. The manufacturer no longer has a listing for the 20046 harness. Everything else is the same as far as length, wire gauge, and design.

The 7-way you have installed on your truck would already have the turn signals and stop lights combined on the same circuit since that is standard for trailer wiring and there isn't a way to wire up a 7-way with the circuits separate. Now…

The overall length of the Replacement Topwind Handle w/ Claw Knob for etrailer and Ram Square, Direct Weld Jacks #TJD-7000-HD is 10-1/2 inches. The center to center length is 9 inches. I've attached a photo to assist.