Keep your Oki B431 printer running smoothly with the Oki B431 Drum Unit 44574303. This genuine Oki product is designed to provide crisp, clean prints every time, and is easy to install and replace. Plus, it's made from high-quality materials for long-lasting performance. So if you want to ensure the best possible results from your Oki B431 printer, be sure to choose the Oki B431 Drum Unit 44574303! Printer Compatibility: OKI B411,OKI B431,OKI MB491,OKI MB471,OKI B432,OKI B512,OKI MB472,OKI MB492,OKI MB562,OKI B412