Ok, I knew my JK Wrangler inside out till it was totaled. Baught a Gladiator Rubicon and started modifying after 2 months. I was installing Rugged Ridge Snorkle when I saw this under the airbox. I maybe showing my ignorance with this engine but I have no clue as to what this is? Looks like a large starter or alternator? I know you guys know and would greatly appreciate your help.