The Molex 0349861602 is a 16-circuit sealed plug from the MX150 34986 series, designed for wire-to-wire or wire-to-device harness connections in demanding environments. It accepts male blade crimp terminals (sold separately) and terminates in-line via a free-hanging mount — no PCB footprint needed. The locking ramp fastening provides an audible click on mate, giving positive retention against vibration in automotive underhood, off-road equipment, and industrial machinery harnesses.
Sealed for Wet and Dusty Harness Runs
This makes it a natural fit for harness sections that route through splash zones, washdown areas, or exposed chassis locations where an unsealed header would corrode. The sealing is integral to the housing design, not a secondary boot.
This plug ships without contacts — the note is explicit. You order the male blade crimp terminals separately, sized for your wire gauge. The glass-filled nylon and syndiotatic polystyrene insulation material holds up to the crimp insertion force without cracking. No soldering, no special heat source — just the right terminal and tooling.
Mating Half and System Compatibility
The 0349861602 plug mates with a 16-circuit MX150 receptacle housing that accepts female crimp terminals. The sealed interface is maintained only when both halves are properly mated and the wire seals are in place. The 16-position count is the critical match: a 12-circuit receptacle will not lock, and a 24-circuit housing leaves cavities open.