TRUCK N TRAILER
Brenham, Texas
customer service (800) 638-8177
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Truck Accessories
Grill Guards
Bumpers
Front End Replacements
Plug Wiring Guide
Various connectors are available from four to seven pins to allow for the transfer of power for the lighting as well as auxiliary functions such as electric trailer brake control, backup lights, etc. Choose a connector that has the required number of pins for the functions required. Also, mount the connector on the vehicle. Not only will it display a clean look, but a mount is helpful in avoiding the potential problems associated with leaving a connector dangling.
4-Way Connectors
4-Way connectors are available allowing the basic hookup of the three lighting functions (running, turn, and brake) plus one pin is provided for a ground wire.
4-way flat trailer connector
(most common)
4-way flat truck connector
4-way round trailer connector
4-way round truck connector
6-Way Connectors
6-Way connectors are available allowing the basic hookup of the three lighting functions (running, turn, and brake) and besides the ground, two extra pins are available to provide two additional function.
6-way round trailer end
6-way round truck end
Note: The black (12V) and Blue (Electric Brakes) may be reversed to suit trailer. Horse Trailers may use the center pin for 12V hot lead, R.V. trailers use the center pin for electric brakes. .
7-Way Connectors
Besides the three main lighting functions, additional pins for auxiliary power, trailer battery charging etc. are available.
7-way trailer end
7-way truck end
7-way trailer end - plastic
7-way truck end - plastic
