We are trying to find the right motor for our 7900 series coleman furnace. Can anyone give us the purchasing info needed?

Remove motor take it with you to Grangers or some other motor parts house

Rating plate on the furnace will give you the horse power and voltage. Be sure to get the rotation right. Any universal motor should work just fine after you get it matched up if the rotation is revrsible. Be sure to buy a new run capacitor for the new motor.