7 Pin Trailer Plug Splice-in Replacement Trailer Side Male End 7 Way Round Trailer Light Wiring Harness Connector, Heavy Duty 7 Prong Trailer Wiring Tow Plug for Boat TrailerTrailer Side RV 7 Pin: - The 7-way blade-style trailer connector is designed for the trailer side of the connectivity. This standard 7 prong trailer plug connects the trailer to the socket on the tow vehicle. Heavy Duty: - The replacement 7 blade connector is made of reinforced glass-filled nylon. The waterproof rubber spacer at the back protects the splice-in connection points for the wires, keeping them safe from water and dirt. Reliable Connection: - The 7 pin flat trailer-side splice in connector allows you to connect the 7 poles trailer socket to power taillights, brake lights, turn signals, reverse lights, electric trailer brakes, and auxiliary power (12V+ wire). Easy Grip: - The easy-to-grip ergonomic design features two grip hooks on either side for simple plug in and disconnect of the trailer wiring. The interlock system locks in place to keep connections secure. Easy Installation: - Simply undo the screw and pull apart the 7 Way Round Trailer Connector, then connect each wire to the corresponding terminal. This 7-pole, RV-style trailer end plug hardwires to the trailer's wiring and connects to the seven way on your vehicle. Size: 3.82 x 2.91 x 1.81 inches.