Okidata Oki Image Drum For B4400 and B4600 Series Printers - IMAGE DRUM 25K LIFE FOR B4400 B4600 SERIES PRINTERS - Laser Imaging Drum - 1 Pack-43501901 - Walmart.com
Compatible Okidata B4400 Drum Unit Black (43501901) - Clever Supplies Ink & Toner Cartridge