Molex Connector Lot, 5 Matched Sets, (4-Circuits) w/18-24 AWG, Pin Size: Standard .0165" 4.2mm, Mini-Fit Jr

Works fine lasts a long time.

worked as it should

Molex are great connectors. Simple to crimp

As others have said, you'll need the Molex crimping tool OR a lot of patience and precision. First, please note that the male pins are installed in the female looking connector which is the "receptacle" side (or board side) of the Molex connectors. If you try this the other way around, the pins won't fit. Second, the Mini-Fit Jr insulation crimp is designed to wrap around the insulator and not pinch in too it like most other crimps. To this end, you'll need to trim down the insulation crimp fins a bit if you are using a generic crimping tool. Finally, the jaws on the Knoweasy Molex Crimper 1424A are too wide for the male version of these pins. It will work but you have to almost crush the insulation fins when preforming the wire crimp otherwise you'll crush the locking pins on the back of the pin.

They work great without problems provided you use the right crimper. You can fudge with a sn-48b crimper, but it will tend to buckle the crimps a bit on the bottom. Otherwise works nice. Solid connections