Section 16 Machinery and mechanical appliances; electrical equipment; parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers and parts and accessories of such articles 84 Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof 84 21 Centrifuges; filtering/purifying machinery... for liquids or gases 84 21 23 Oil or petrol-filters for internal combustion engines Commodity Code Description 84 21 23 00 Oil or petrol-filters for internal combustion engines 84 21 23 11 For machinery of heading 84.29 or 84.30 : Oil filters 84 21 23 19 Other 84 21 23 21 For motor vehicles of Chapter 87 : Oil filters 84 21 23 29 Other 84 21 23 91 Other : Oil filters 84 21 23 99 Other