C4153AImaging drum kit - Contains imaging drum, two air filters and toner cloth
C4785-60516Attachment kit - Attachment rod, bracket and cables
C4785-60519Plastic parts kit - Contains two small bottom pullies, flat cable holder, three small and 13 larger white plastic rollers
C4785-60520Cable kit - Includes interlock switch, head motor cable, flipper sensor, encoder, motor controller cables, ESD cable, and delivery head assembly flat cable
C7836-67901Hardware Kit for Color LaserJet 8550 Series, Hardware kit - Contains all screws and E rings available for scanner
C7836-67903Hardware kit - Contains all gears and pulleys available for scanner
C7837-67901ADF screw/ring kit - All screws, nuts and E-rings used in document feeder
C7837-67902ADF pin kit - All pins used in document feeder