Oyviny 4 Way Flat Trailer Extension Coiled Cable 7.5FT + Double End Design 4 Pin Trailer Light Tester

4 pin extension connector adapter use four wires to carry out essential lighting functions. The trailer plug 4 pin extension adapter is a good extension when your hook up is short. Simple and quick installation, no drilling or special hardware required. 4 Way Flat Trailer Light Tester is a great way to check whether your trailer wiring was correctly installed with this 4 pin trailer plug circuit tester, simply plug and play design let you know where to check, quickly identify lighting problems. 4 flat tester fits with US standard 4 pin flat trailer connector.

• Length: The designed length of 4 flat coiled wiring cable is 7.5ft (90 inch), while the normal working length should be about 5.5ft (66 inch). Note: Please confirm the length you need before ordering.
• Coiled Design: Coiled design fully prevents wires from dragging. Stretchable 4 pin coiled trailer wire provides sufficient space and flexible for towing vehicle and trailer.
• Easy Grip: This 4 pin trailer lighting extension cable comes ready to plug into the existing 4 pole plug on your trailer and vehicle. No splicing required! With wider tabs on both side, this upgraded 4 pin coiled trailer wiring offers better grip when plugging in and out.
• 4 Way Trailer Tester. Using this 4 pin trailer plug tester to confirm proper function of your vehicle’s trailer wiring harness, excellent for diagnosing trailer light issues, lets you know where in the system there is a problem instead of guessing
• Bright LED Indicators. This 4-way trailer circuit tester features a LED light for each electrical functions, turn on the lights and check, you can easily read the LEDs and find out which wiring has a problem