Most trailers use 16 gauge wire ... wet conditions and consistency on the road. This 4-pin connector features a saltwater trailer wiring harness with a 25 ft wishbone design.

Rubber seals at the wire/pin connection and on the mating surface ... corroded pins inside the female side of a Sumitomo DL 090-series 16-pin sealed connector on the main electrical harness of a ...

For some reason there’s often a lot of corrosion where those wires attach to their sockets on the back of the 7-pin outlet. -if the problem is with a seed monitor wiring harness connector ...