- Engine crankcase ventilation ZIL-131
- Cylinder block and cylinder head ZIL-131
- Starting heater ZIL-131
- Steering maintenance ZIL-131
- Repair of wheels ZIL-131
- The design of the cardan ZIL-131
- Filter sump ZIL-131
- The design of the ZIL-131 power system
- Ignition system ZIL-131
- Engine cooling ZIL-131
- Safety valve for brakes ZIL-131
- Adjustment of gears of reducers ZIL-131
- Features of the ZIL-131 lubrication system
- Brake pressure regulator ZIL-131
- Adjusting the handbrake ZIL-131
- Maintenance of bridges ZIL-131
- Adjustment of pivots and hubs ZIL-131
- Steering cardan shaft ZIL-131
- The design of the transfer case ZIL-131
- Piston group ZIL-131