What are the types of heavy truck parts?

The types of accessories for heavy trucks are the same as those for all types of trucks [except passenger cars]. Generally, they are divided into: 1. Power parts, including engines and peripheral parts [such as starters, generators, superchargers, various filter elements, etc.]; 2. Driving part [also called transmission part], including clutch, gearbox, transmission shaft, axle, etc; 3. Suspension part, including front and rear steel plates and fasteners, balance shaft, thrust rod, etc; 4. Steering part, including steering gear and horizontal tie rod; 5. Electrical appliances and valves, including various types of electrical switches, harnesses, bulbs and various brake components [valves]; 6. Operating and loading parts, i.e. cab and cargo box, 7. Frame [i.e. girder].