What the hell is this thing?

[Brokeboi]

Short story real quick... So my jeep died while wheeling, and it eventually started up again. I drove it the next day, amd when I went to go home it wouldn't start. Clicked once, looked like battery was dead. Battery had 13 something volts but still wouldn't turn. Eventually i pulled on this cluster of wires with what looks to be a solenoid and it fired right up. 

So, what is this? Looks like the starter solenoid is connected to the starter, and this also controls all my lights and cluster, but I can't for the life of me figure out what exactly it is to replace it. Any help is appreciated! 

[89 MJ]

It's the Flux Capacitor. I can't tell from here. Can you take some pictures a little bit farther back where you are pointing to it? 

[Pete M]

starter relay   

 

do make sure that all your battery connections are super clean. 

[fiatslug87]

 

[Brokeboi]

Thank you all!

[BeaterComanche86]

Try cleaning the attached terminals and connectors before you just buy a new one. They might just be dirty, I don’t believe these things go bad often.