These printers use the TK-5242K cartridge:

Kyocera-Mita Ecosys M-5526 CDW

Kyocera-Mita M 5526 CDN

Kyocera-Mita M 5526 CDW

Kyocera-Mita P 5026 CDN

Kyocera-Mita P 5026 CDW

Kyocera-Mita P 5526 CDN