The TE Connectivity 178125-4 is a 2-position plug housing from the Universal Power series, designed as a free-hanging (in-line) wire-to-wire or wire-to-board interconnect. The 7.92 mm pitch gives generous spacing for larger-gauge power wiring, and the single-row layout keeps the assembly compact for a two-circuit run. The yellow polyamide (PA66) housing stands out in a harness bundle, making it easier to trace during build or service. This is the plug half — it accepts female socket crimp terminals and mates with the matching Universal Power header or receptacle.
The 7.92 mm pitch is wide enough to handle moderate power levels without creepage concerns — expect this family to carry several amps per circuit when fitted with the correct terminal. The latch lock provides positive retention; you'll hear it click when fully mated, which matters in any application with vibration, from industrial machinery to vehicle wiring. Contacts are not included with this housing — you must order the appropriate female socket crimp terminals separately. The housing accepts terminals terminated to wire via a standard crimp tool, then locks into the cavity. Always confirm the terminal part number for your wire gauge before committing the BOM.
Mating and Termination
This plug housing mates with the Universal Power header or receptacle of matching 2-circuit, 7.92 mm pitch layout. The latch lock on the plug engages a corresponding ramp on the mating half — no secondary locking hardware needed. Termination is crimp-style: strip the wire, crimp the female socket terminal, insert into the housing cavity until the retention lance seats. The single-row, 2-position cavity layout is straightforward to populate and inspect.