- Engine
- Filters
- Belt Drive
- Fuel Supply System
- Fuel Mixture Formation
- Exhaust System
- Cooling System
- Clutch/Attachment Parts
- Transmission
- Wheel Drive
- Axle Drive
- Braking System
- Suspension/Damping
- Axle Mounting/ Steering/ Wheels
- Steering
- Electrics
- Spark/Glow Ignition
- Heating/Ventilation
- Air Conditioning