5PCS New Printhead Print Head for Zebra GX420D GK420D ZP450 ZP550 ZP505 ZP500 Printer 203dpi PN 105934-037 Thermal printhead for Zebra GK420d GX420d ZP450 ZP500 ZP505 direct thermal printers, 203dpi, PN 105934-037 Fit for GK420d label printers: GK42-202510-000 (also known as ZP450 and ZP505), GK42-202210-000, GK42-202211-000, GK42-202220-000, GK42-202520-000, GK42-202510-00GA, GK42-202221-000, GK42-202210-00GA, GK42-200211-000, GK42-200210-000, GK42-200111-000, GK42-200110-000, GK42-202511-000, GK42-202590-000, GK42-202540-000, GK42-202270-000, GK42-202240-000, GK42-202210-00DE, GK42-200220-000, GK42-200210-0GA, GK42-200120-000, GK42-200110-0GA Fit for GX420d label printers: GX42-202410-000, GX42-202512-000, GX42-202411-000, GX42-202412-000, GX42-202511-000, GX42-202510-000, GX42-202510-150, GX42-202810-150, GX42-202810-000, GX42-202410-150, GX42-202712-000, GX42-202522-000, GX42-202412-006M, GX42-201812-000, GX42-201811-100, GX42-201810-000, GX42-201712-000, GX42-201711-000, GX42-201710-000, GX42-200420-000, GX42-200412-000, GX42-200411-000, GX42-200410-100, GX42-200410-050, GX42-200410-040, GX42-200410-000, GX42-200312-000, GX Note: this printhead fits GK420d and GX420d (direct thermal) only, not fit for GK420t and GX420t (thermal transfer). Please click "Ctrl+F", type in your printer part number and search it in this page to check whether this printhead fits it.