Looking for correct Molex 8-pin connectors

Here's a link to the LCCA modular standards (don't know if you have to be a member to see it):  https://www.lionelcollectors.o...manual%20ver%202.pdf

Here is what it lists for connectors and terminal strips:

8 Wire Harness - 60 inches long Del City Part #74825 - delcity.com

8 position terminal strip Del City - Part #70018

The instructions were written in 2012, so I don't know if those part numbers are still valid or available.  IMO, if you're only doing this for yourself; i.e., not to connect to other people's modules, you could probably use any connectors that are used for trailer lighting connections - just make sure that they will handle the amperage.   

Looks like the part number still links to a cable.

https://www.delcity.net/store/...76.h_959382.r_IF1003

Thank you both. I am concerned about the amperage though I doubt I will ever run more than one train a time on my layout. Since I am not an electronics wiz, that is why I was asking here for help. I can find 8-pin molex connectors online but have no idea if they are appropriate amp-wise for the job.

The product that I mentioned and GRJ linked is used by LCCA for modules, so I think you can be confident that it can handle the draw of a couple of trains.   That product has 3 12-gauge wires and 5 16-gauge wires.  A quick search for maximum amps for 16-gauge yielded multiple answers (imagine that!), but the lowest maximum was 10 amps, and 12-gauge will handle at least 15 amps.  If you have a modern transformer, you'll trip the breaker before you exceed the capacity of either size of wire.  And if you don't have a modern transformer, add a fast-acting breaker.