7 Pin Towbar Socket / Plug
7 pin towbar socket to suit round and square trailer plugs. As a result of failing and broken brass screws, all trailer plugs are manufactured with stainless steel screws.
Use the drop-down to select electrical trailer parts and tow bar connectors.
- Flat Socket – 7 pin
- Flat Plug – 7 Pin
- Round Socket – 7 pin
- Universal angle bracket to suit round and flat sockets.
Plug Wiring Diagram
What is the difference between trailer connectors?
- A socket is attached to the tow bar.
- A trailer plug is attached to the trailer.
Poor connections cause bad connections. A handy tip is to spray the male plug terminals with WD40. This is a temporary fix to overcome corrosion problems.
Solder the cable ends before connecting into the terminal ferrules. Solder all joints and tape with electrical tape or heat shrink.
Soldered joints last forever. Unsoldered joints will give problems when the twisted joints oxidise. Electric current will not pass through corroded or hot connections and will cause a fire.
Quite often installing new lights causes the tow vehicle to flicker. Flickering is a serious problem as the onboard computer will be reporting the problem to your dash.
Installing an ECU to bypass the vehicle computer fixes flickering indicator light problems. Purchase ECU’s here
The onboard computer is measuring resistance, wattage and voltage drop to the newly installed lamps. It is quite likely the new lamp and cabling resistances fall outside the computer specifications.
The best remedy that is used by many tow bar installers, is to install a new ECU (electronic control unit) to control the LED light kit.
Finally, in 100% of cases, installing the ECU fixes problems with the vehicles flickering lights.
Couplemate Trailer Parts sells only the best quality 7 Pin Towbar Plug, Socket, Bracket and caravan spare parts throughout Australia.
Customers are welcome to either pickup or take advantage of our low freight rates. Express shipping to Melbourne, Sydney, Brisbane, Perth, Adelaide, Darwin, and Hobart.
We also ship products to New Zealand via Australia Post Air Express.
© Steve Wotherspoon July 5, 2018. Images and text may be copied, provided a link back to the copied page and the source is displayed where the content or image is located.