How To Solder Trailer Wiring
Run the tip of the solder on top of the wire so it melts into the wires.
How to solder trailer wiring. Tap the end of the 6337 solder on top of the wire splice so the solder melts down into the wires. Tin Plated Copper Plastic. Wiring a seven-blade trailer connector.
Feed the wire into the drill holes on the outside skirt I drill a larger hole using the step drill so it can accommodate a rubber grommet. As the heat from soldering propagates down the wire it will crates areas with different levels of brittleness. If you arent comfortable soldering wires heat shrink butt connectors and a heat gun are the next best thing.
Oblivion is also correct about the waterproofing - trailer wiring is notorious for corroding. If youre the belt-and-suspenders sort you can solder after crimping. Use heat shrink tubing to protect the soldered connection.
This helps to spread out the heat when the tip touches the wires. Replace the trailer light wiring How to wire a new trailer light. Connect each wire securely and button them all up well.
Run the solder over the entire splice so it can melt and travel into the gaps between the wires. A 5 wire to 4 wire converter so that you can use the tail light signals for the trailer lights. Dead link also not.
I rewire all of my trailers with the plastic 7 way connectors. They are large enough that you can use ring terminals crimped on the wires and the screws in the connector just screw them down. These differentials in brittleness create areas where vibration can lead to breaks in the wire.