Dell C2660dn/C2665dnf/S3840cdn/ S3845cdn 100,000 Pages Yield Fuser

The Dell 4K0HY is a genuine fuser assembly created for the C2660dn, C2665dnf, S3840cdn, and S3845cdn color laser printers. It sits inside the printer’s heating section and uses 110 to 120 volts to bond toner to the page, so every document comes out sharp and fully cured.

With a rated lifespan of about 100,000 pages, this part keeps large print runs moving without constant interruptions. Offices that handle invoices every day, school print centers that turn out coursework, and marketing teams that produce full-color flyers can rely on the long service interval to stay productive.

Dell engineers built the 4K0HY to install without special tools or training. Slide out the old fuser, seat the new one, and close the cover; most users are printing again in minutes. Because it is an original Dell component, the printer firmware recognizes it immediately, maintains correct temperature control, and protects the surrounding hardware.

Replacing a worn fuser restores consistent color, prevents streaks, and eliminates pages that smear when handled. If your current unit has passed its duty cycle or is beginning to leave unfixed toner, swapping it with this assembly is the recommended fix to bring output quality back to factory standards.

• Yield rated for approximately 100,000 pages under normal duty
• Operates on standard 110 to 120 volt power
• Bonds toner firmly to paper for documents that stay clean and legible
• Fits Dell C2660dn, C2665dnf, S3840cdn, and S3845cdn color laser models
• Original Dell part ensures proper fit and reliable performance
• Tool-free installation minimizes downtime for busy workgroups