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#DISCONNECT 7 PIN TRAILER CONNECTOR ISO#
Our company opened for business in 1957 as a manufacturer of trailer hitches and has grown to become an ISO 9001-2015 certified company and a leading supplier of hitches, trailer parts and truck accessories to customers throughout North America. The easiest way to replace a 4-pin plug with a 7-pin plug is to use a wiring kit that makes the change from 4 wires to 7 as seamless as is a Midwest based, family owned business that specializes in trailer hitches and towing products for light duty to heavy duty applications.
Can I Change My 4-Pin Trailer Plug to a 7-Pin Trailer Plug? So, while the 7-pin trailer plug provides the wiring to control the brakes, to engage/control the brakes, a brake controller in the towing vehicle is required. These plugs also have a separate wiring pin to control only the brake lights. In fact, on some 7-pin plugs, more than one wire provides a signal for braking.įor example, some plugs have a single wiring pin that controls the left turn signal AND brake lights and a single wiring pin that controls the right turn signal AND brake lights. The plug does, however, control multiple light functions, including the brake LIGHTS. A brake controller is necessary to actually modulate/control the brakes for this purpose. It simply provides a connection between the towing vehicle and the trailer. A 7-pin trailer plug does not, itself, control or engage the brakes themselves. Does a 7-pin Trailer Plug Control Brakes? You can use the top of the plug to orient you to the locations of the pins, each of which corresponds with a different function. This may help in orienting the wiring based on the location of the pins. That raised piece should be at the top of the plug. There is a raised portion on the circular plug. So, the most important thing to do when wiring in a new 7-pin plug is to make absolutely sure you’re coordinating the proper pin/wire with the proper function. Relying on wire colors may not be appropriate as different plugs use different wire colors for different functions. It’s always best to coordinate your plug blades/wires with the appropriate functions rather than by wire color. This is frustrating, but it’s an important fact to keep in mind. 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.
#DISCONNECT 7 PIN TRAILER CONNECTOR DRIVERS#
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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