Amazon.com: Kyocera 1T02LCAUS0 Model TK-8507Y Yellow Toner Cartridge For use with Kyocera TASKalfa 4550ci, 4551ci, 5550ci and 5551ci Color Multifunctional Printers : Everything Else
Tk8505 Tk8506 Tk8507 Tk8508 Tk8509 Color Copier Toner for Kyocera Taskalfa 4550ci 5550ci 4551ci 5551ci - China Kyocera Parts, Kyocera Toner Cartridge | Made-in-China.com