| Description | Part Number |
| 1 port vertical fax card | 41X1871 |
| 2.4-inch control panel bezel | 41X1304 |
| 2.4-inch Control Panel FFC | 41X1309 |
| 250-sheet tray assembly | 41X1285 |
| 256MB User Flash Memory | 41X1010 |
| 550-sheet tray | 41X1780 |
| 550-sheet tray insert | 41X1781 |
| 650-sheet duo tray insert | 41X1784 |
| AC power to LVPS cable | 41X2331 |
| Control Panel Base Cover | 41X1305 |
| Control panel display assembly | 41X1627 |
| Control Panel Power Cable | 41X2119 |
| Controller board (CS521 and C2535) | 41X2098 |
| EP Drive Assembly | 41X1289 |
| EP motor to controller board cable | 41X2330 |
| Front and Right Side Interlock Switch Cover Assembly | 41X1561 |
| Front cover inner deflector | 41X2663 |
| Front cover straps | 40X7619 |
| Front Door Assembly | 41X1286 |
| Front toner door pivot Bracket | 40X9244 |
| Fuser deflector | 41X2305 |
| Fuser drive motor assembly | 40X7629 |
| Fuser exit narrow media to controller board | 41X2328 |
| Fuser exit sensor | 40X5413 |
| Fuser maintenance kit, 115V | 41X2096 |
| Fuser maintenance kit, 230V | 41X2097 |
| Fuser, 110V | 41X1041 |
| Fuser, 220V | 41X1300 |
| Fuser/input sensor cable | 41X2329 |
| High Voltage Power Supply | 41X1042 |
| HVPS to controller board cable | 41X2334 |
| ITU guide | 41X0580 |
| Left Cover | 41X1291 |
| Lower Left Subframe | 41X2326 |
| Lower Right Subframe | 41X1312 |
| Low-voltage Power Supply | 41X1043 |
| LVPS to controller board cable | 41X2332 |
| Main fan | 41X0397 |
| Marknet N8372, Front WiFiFSM | 41X1872 |
| Media Feeder | 41X1292 |
| MPF pick tire roll with wear strips | 40X7178 |
| Narrow Media/Bin Full Flag | 41X2349 |
| Optional 650-sheet duo tray | 41X1783 |
| Photo sensor and retainer (one per package) | 40X7301 |
| Pick tires | 40X5168 |
| Printhead | 41X1040 |
| Rear cover, CS3x, CS4x, CS52x | 41X1788 |
| Right cover assembly | 40X7630 |
| Right Deflector Flag | 41X2350 |
| Sensor (left toner patch with thermistor) | 41X1904 |
| Sensor (right toner patch with thermistor) | 41X2348 |
| Serial ISP with backpack adapter | 41X0020 |
| Smart card | 41X2055 |
| Software and document CD | 3085348 |
| Subframe Cable Cover | 41X2327 |
| Subframe Foot | 41X2360 |
| Toner cartridge contact | 41X1723 |
| Toner meter cycle card assembly | 40X7620 |
| Toner supply door | 40X7621 |
| Top cover assembly | 40X7633 |
| Transfer Module | 41X1039 |
| Tray 2 to controller board cable | 41X2335 |
| Tray present sensor cable | 41X2336 |
| TWN4 USB front reader kit authentication device | 41X2615 |
| Waste toner bottle, 25K | 78C0W00 |
| Waste toner bottle contact block | 41X1722 |
| Weather Station | 41X1290 |
| Weather Station Cable | 41X2333 |
| Wireless module | 41X1873 |