![]() It’s also important to know that not all manufacturers color-coordinate their plugs in the same way. The answer to this important question is no.įirst of all, there are different types of 7-pin trailer plugs in general – not all are wired for RVs. It’s important to note that not all 7-pin plugs will be wired according to this same color pattern. ![]() The raised piece of the plug, shown on the top of the plug in this photo, can help to orient you to the pins. For this reason, it’s important to wire according to function as opposed to color. Note that not all 7-pin trailer plugs, and in fact not all RV plugs, are wired to the same color pattern. Yellow = backup/reverse or auxiliary lights.IN GENERAL, this is the wiring scheme you’re most likely to find on 7-pin RV trailer plugs: Let’s take a look at the wires of each of the 7 pins of one RV 7-pin trailer plug, in particular, to see what function is powered by each wire leading to those pins. And yes, these do include the trailer lights. The 7 pins on the plug deliver power/signaling to 7 different actions/connections on the trailer connector. The connector is 2″ in diameter and is often found on heavy-duty trailers such as RVs, cargo trailers, aluminum trailers, dump & landscape trailers, and car haulers. In order to do that, there must be power to the trailer.Ī 7-pin plug (sometimes referred to as the “7-way trailer connector”) is the connector and heavy-duty wire that brings the necessary power and related functions to the trailer you’re towing. So, when you’re about to make a turn or when you’re backing up or braking, your trailer needs to indicate these intentions and actions for other drivers to be able to anticipate. When you’re towing any type of trailer, it’s imperative that your trailer is capable of signaling to drivers behind you what your operating intentions are. 5) Can I Change My 4-Pin Trailer Plug to a 7-Pin Trailer Plug?. ![]() 4) Does a 7-pin Trailer Plug Control Brakes?.3) Are All 7-Pin Trailer Plugs the Same?. ![]()
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