Manufacture Of Parts And Accessories For Motor Vehicles ISIC Code 2930. This class includes the manufacture of diverse parts and accessories for motor vehicles: Brakes, gearboxes, axles, road wheels, suspension shock absorbers, radiators, silencers, exhaust pipes, catalytic converters, clutches, steering wheels, steering columns, and steering boxes, manufacture of parts and accessories of bodies for motor vehicles: Safety belts, airbags, doors, bumpers, manufacture of car seats, manufacture of motor vehicle electrical equipment, such as generators, alternators, spark plugs, ignition wiring harnesses, power window, and door systems, assembly of purchased gauges into instrument panels, voltage regulators, etc.