- Braking System
- Disc Brake
- Drum Brake
- Brake Fluid
- Axle Mounting/ Steering/ Wheels
- Wheel Hub/Mounting
- Engine
- Engine Timing
- Crankshaft Drive
- Crankshaft
- Clutch/Attachment Parts
- Axle Drive
- Propshaft
- Electrics
- Spark/Glow Ignition
- Heating/Ventilation
- Compressed-air System