Section 17 VEHICLES, AIRCRAFT, VESSELS AND ASSOCIATED TRANSPORT EQUIPMENT 87 Vehicles other than railway or tramway rolling-stock, and parts and accessories 87 01 Tractors (other than tractors of heading 87.09). 87 01 21 With only compression-ignition internal combustion piston engine (diesel or semi-diesel) Commodity Code Description 87 01 21 00 With only compression-ignition internal combustion piston engine (diesel or semi-diesel)