The 174929-2: It accepts tab-style crimp contacts on a 3.50mm pitch — a pitch that gives enough creepage for moderate-voltage power circuits without wasting board space.
This is the single most common sourcing mistake on this housing — the terminals are ordered separately as a crimp contact part number. The housing accepts tab-style contacts terminated with a standard crimp tool.
Mating Half and Terminal Selection
This receptacle housing mates with a Multi-Lock plug header that carries the same 3.50mm pitch and tab contacts. The single-row, 4-position layout keeps the harness narrow, which helps in tight routing through a conduit or along a frame rail.