Speedy Inks Compatible Drum Unit Replacement for Xerox 13R551 (Black) For Use In Xerox: WorkCentre XD 100 MFP, Xerox WorkCentre XD 102 MFP, Xerox WorkCentre XD 103f MFP, Xerox WorkCentre XD 104 MFP Page Yield: 18,000 100% Satisfaction Guaranteed! The use of aftermarket replacement cartridges and supplies does not void your printer's warranty