The 0701070012: It is a free-hanging (in-line) crimp housing — you terminate the wires separately with male pins and insert them into the cavity. The latch holder on the top locks the plug to its mating half, giving the connection some vibration resistance in harness assemblies that see movement or thermal cycling.
The crimp termination lets you build custom cable lengths in the harness shop, and the latch holder locks the pair together so the connection does not walk loose under vibration.
What the 13-Position Count Means for Your Harness
The 13-position count is the number of circuits this housing carries.