Amazon.com : LD Products Compatible Laser Drum Unit Replacement for Okidata Type B2 44574301 for use in MB & OKI B Printers: MB461 MFP, MB471, MB471W, B411d, B411dn, B431d, and B431dn :
The Supplies Guys: Original Okidata 43979001 Drum Unit
OKI Drum 44574302 Original Black 25000 Sides Drum Unit B411 B431 MB461 MB471 MB491 Drum | Conrad.com
OKI Genuine New Drum without dummy cartridge for OKI MC352 MC362 C511 – SUPER EASY DRUM RESET
Original Okidata 44844415 Drum Unit - LD Products
44574301 Image Drum OKI B411 B412 B431 B432 B512 MB461 MB471 MB472 MB491 MB492 MB562 - Sun Data Supply
Okidata Original 45103726 Magenta Imaging Drum Unit for the C900 (40K Page Yield) - Walmart.com