It uses a 0.098" (2.50 mm) pitch with a 0.205" (5.20 mm) row spacing, and it terminates via crimp contacts that are ordered separately — the housing ships empty.
The 12 circuits on the 174045-2 match a 12-way BOM line for a dual-row harness. The 0.205" (5.20 mm) row spacing means the two rows are offset enough that the mating receptacle's shroud clears the housing without interference. If your harness needs more or fewer circuits, the Multi-Lock series includes other position counts at the same pitch — for example, the 6-position single-row 1-1376477-6 uses the same 0.098" (2.50 mm) pitch but a different row layout and a latch lock instead of a latch holder.