There is only a connector for the 16627960 (or 61), the KoP checklist misleadingly shows two connectors.
See section G.5.2 DC Motors, "Special Notes on Motors"
http://www.usfirst.org/uploadedFiles...nes%20RevB.pdf
Hope this helps, it took us a while to figure out that we have to make our own connector for the 16631023 Keyang.