Pulled these off of an a107. Beat to hell, but still running. These are pretty much the oldest belts I have ever seen. Needless to say, the washer was not spinning very well!
It differently needs a new main drive belt, but changing the pump belt will not make any difference, save your money and the planet by not creating excess waste.
funny you say that. Normally that is the case. This one, however, was extremely glazed, and cracked. This is one of the only instances where I found it nessesary to change the pump belt.