What are the consumables for the trailer?

Semi-trailer wearing parts include valve push rod, valve rocker arm, camshaft timing teeth, timing chain (toothed belt), intake and exhaust manifold assembly, oil pump, oil filter, oil pan, gasoline pump, carburetor, gasoline filter, air filter, radiator, thermostat, water pump, fan belt, cylinder block, cylinder liner, cylinder head cover, cylinder pad, piston and piston ring.