Dan,

Here in CA, my local dealer can reach out to I don't know where, and come up with some old used or NOS parts even though Cat has discontinued the part I need. I know where some 14As are being parted but do not know of a 15A anywhere. Maybe the same clutch is used ahead of the torque converter. Some one on here will straighten me out. Also you might look in Machinery Trader on-line as I think parts are listed in there.

Best of luck-

JanM