Soooooo... learned the hard way that the bags listed under "2131 - Power-Pak 3-Bag Material Collection System - 15Aug14" are not the correct bags, unless you want shorter bags that will decrease the capacity of your MCS. Anyway, item number AM126498 IS NOT the correct replacement bag for the gas engine powered 3-bag MCS pictured below. I worked with a GFP rep to contact Deere to get confirmation on what the correct replace bag part number is and we came up with AM135816, so hopefully these are the correct ones when they arrive. Spent $20 sending the incorrect bag back to GFP, ugh.
Does anyone know what "model" this type of system is? I know it's an older system and no longer made (was very expensive back in the day), but it kicks ass and I'm very happy with its performance.