Can any one identify this component or tell me a way to do so?
I'm like 80 percent sure that that part connects to what I believe is a 78L05 VIN pin. It also connects to two small input caps. Based on that and the product sheet you posted that it's either a 12v 2A fuse, or a reverse protection diode.

If the pins at the top where marked, you could check to see if it is a 12v input pin.