How to crimp two wires in one molex connector

Written by david lipscomb | 13/05/2017
How to crimp two wires in one molex connector
Crimping two wires into a single Molex plug adds convenience. (Jupiterimages/ Images)

Molex connectors are small, crimp-style pins. The two halves of these connectors mate together, using a quick-connect shell to secure the male and female ends. On occasion, it may be necessary to crimp two wires into one Molex pin connector, such as when two devices share a common ground. Crimping two wires into a single crimp pin allows for additional convenience when making harnesses or plugs using Molex connectors.

Cut the two lengths of primary wire to the needed length using the wire cutters.

Strip 1/2 inch of insulation from the end of the wire that will be inserted into the Molex connector. Twist the bare strands from both wires together, forming a pigtail.

Insert the twisted pair of wires into the Molex crimp pin connector. Center the upper crimp terminal on the pin connector over the twisted bare wires. Align the lower crimp terminal with the insulation.

Crimp the lower terminal first, providing strain relief. Crimp the upper terminal centred over the bare one next, using the Molex crimp tool.

Push the pin connector into the Molex shell until the small barbs on the pin engage inside. Tug slightly on the wire to ensure a solid join with the shell.

Things you need

  • Primary wire
  • Wire cutters
  • Wire strippers
  • Molex crimp pin connector
  • Molex pin crimping tool
  • Molex harness shell

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