| Part Number | Description |
| 57108103 | ADF MAINTENANCE KIT |
| 50146001 | ALIGNER: 500 FEED |
| 53102301 | Arm: Left Charge Roll |
| 53102302 | Arm: Right Charge Roll |
| 51312801 | Belt: Scanner Carriage |
| 51715001 | Bezel: H OP Panel (MB790) |
| 51715002 | Bezel: H X658DE OP Panel (MB790) |
| 51715101 | Bracket: Left Transfer Roll |
| 51715102 | Bracket: Right Transfer Roll |
| 51260901 | CAM: Pick Roll Position |
| 51403601 | Clutch: Bearing and Gear |
| 51403602 | Clutch: GCM Torque Limiter |
| 53102501 | Cover: 500 Laser |
| 50611104 | Deflector: H MFP Lower (MB790) |
| 50611102 | Deflector: Front Media Turn |
| 50611103 | Deflector: MH Inner |
| 50611105 | Deflector: MH MPF Lift |
| 50611101 | Deflector: Transfer |
| 53102402 | Door: 500 Fuser Access |
| 53102401 | Door: H MPF Tray |
| 53102403 | Door: H Rear |
| 50243503 | Drawer: 550 Sheet Option (MB790) |
| 50145901 | Duplexer: MH |
| 50243203 | FEEDER: 500 Pick Arm |
| 50243204 | Feeder: MFP Pick Solenoid |
| 50243201 | FEEDER: MH ADF |
| 50243211 | FEEDER: MH ADF |
| 57108202 | FUSER: 110V TYPE 1 |
| 51260804 | Gear: Bevel Gear 43H0304 |
| 51260802 | Gear: Kit Pulley - Guide F |
| 51260802 | Gear: Kit Pulley - Guide F |
| 51260801 | Gear: Kit Pulley - Guide R |
| 51260803 | Gear: MPF Cam |
| 51035901 | Guide: Sep Roll Media |
| 51035902 | Guide: Upper Transport |
| 50817002 | Lever (Driver): Media Full Bin (MB790) |
| 50817001 | Lever (Link): Fuser Drive Release |
| 57108101 | MAINTENANCE KIT 110V TYPE 1 FUSER |
| 50520102 | Pad: ADF Media Pinch |
| 50520101 | Pad: ADF Platen |
| 50520103 | Pad: Machine |
| 50146101 | Printhead: MH Polygon Mirror |
| 50428506 | Roll: ADF Pick |
| 50428507 | Roll: ADF Reg Pinch |
| 50428508 | Roll: ADF Separator |
| 50428509 | Roll: Charge Roll |
| 50428504 | Roll: Media Tray Catch |
| 50428505 | Roll: PC Cart Support |
| 50428501 | Roll: Pick |
| 50428503 | Roll: Pick |
| 50428502 | Roll: Transfer |
| 50428602 | Roller: ADF Separator |
| 50243401 | Scan Cover |
| 50243302 | Scanner: H Flatbed (MB790) |
| 50243304 | SCANNER: H FLATBED (MB790) |
| 50428713 | Sensor: ADF Doc Set |
| 50428701 | Sensor: ADF R Registration |
| 50428712 | Sensor: ADF Sheet Thru |
| 50428711 | Sensor: ADF Top Door |
| 50428720 | Sensor: Bin Full Receive (MB790) |
| 50428719 | Sensor: Bin Full Send (MB790) |
| 50428702 | Sensor: Duplex Media Path |
| 50428706 | Sensor: H Std Bin Exit |
| 50428703 | Sensor: Input |
| 50428708 | Sensor: Media Size |
| 50428714 | Sensor: MH ADF Exit Brac |
| 50428714 | Sensor: Pass Through |
| 50428721 | Sensor: Pass Through (MB790) |
| 50428710 | Sensor: Scan Platen Length |
| 50428709 | Sensor: Scanner HP |
| 50428722 | Sensor: Sensor (MB790) |
| 50428704 | Sensor: Std Bin Exit |
| 50428707 | Sensor: Toner Density |
| 50428705 | Sensor: Toner Empty |
| 50428718 | Sensor; Finisher Bin (MB790) |
| 50941302 | Spring: 500 Bellcrank |
| 50941301 | Spring: Media Tray Catch |
| 50520001 | Support: H Media Support (MB790) |
| 50145805 | Tray: 250 Option |
| 50145803 | Tray: 550 Media (MB790) |
| 50145804 | Tray: ADF Doc Tray |
| 50145801 | TRAY: Int 550 Sheet (MB790) |
| 50145802 | TRAY: M 550 OPTION (MB790) |
| 51036002 | Wiper: ASM, Wax Gray Housing |
| 51036001 | Wiper: ASM, Oil, Blk Housing |
