I've used Appliance Factory Parts previously and had a very good experience. Easy to find what I needed. Easy checkout process.
Aspen pad fd/fs350, bw3501 4 per box
Fd/fs 350, bd/bh 3000, dm/hm3300, wh3301/02, fk301/02, bw3500/01, gma30 o/s wh5bl (back)
Buy this part and as many parts as you like and pay only $9.99 shipping, within the Contiguous United States.