44574901
Compatible Oki 44574901 Black High Yield Toner Cartridge
10,000 pages
$20.99
Oki MB491 toner and drum
Your MB491 takes the 44574901 (high yield) and 44574701 (standard yield), plus the 44574301 drum. At our price that is about 0.2¢ a page.
The Oki MB491 is a mono laser printer in the MB491 series, which shares cartridges across 4 models.
It takes two black cartridges that differ only in capacity: the 44574701 at about 4,000 pages and the 44574901 at about 10,000. At our prices that is 0.5¢ a page against 0.2¢, so the high-yield cartridge costs less to run unless you print very little.
The drum is a separate part on this printer. The 44574301 is rated for about 30,000 pages, so it outlasts several toner cartridges and only needs replacing when the printer reports drum life, not every time you change toner.
When you compare prices, compare cost per page rather than the sticker price: a cheaper cartridge with half the rated yield costs more to run. Every cartridge here ships free, is covered by our printer damage protection and can be returned within 90 days, opened or not.
Cartridges that fit
Which yield is worth it
| Cartridge | Yield | Price | Per page |
|---|---|---|---|
| 44574901 High yield | 10,000 pages | $20.99 | 0.2¢ |
| 44574701 | 4,000 pages | $18.98 | 0.5¢ |
What it costs you a month
About $9.66 a month in toner, roughly one 44574901 every 3 months.
Questions about the MB491
What toner does the Oki MB491 use?
The 44574901 and 44574701. Oki lists these cartridges as compatible with this model, and the yields on this page are Oki's published figures.
Does the MB491 have a separate drum?
Yes. The 44574301 drum unit is a separate part rated for about 30,000 pages. Replace it when the printer reports drum life, not when you change toner.
Does using a compatible cartridge void the MB491 warranty?
No. Under the Magnuson-Moss Warranty Act a manufacturer cannot void your warranty because you used a third-party cartridge. If one of ours damages the printer, our printer damage protection covers the repair.
Other Oki MB491 models
Most of these share the same cartridges. Check the model page to be sure.
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Page updated Sep 23, 2026. Compatibility checked by Dan Whitaker, Print Technician. Brand names and part numbers are used only to identify compatibility. We are not affiliated with or endorsed by any printer manufacturer.