Compression-ignition internal combustion piston engines (diesel or semi-diesel engines)

840810 Engines; for marine propulsion, compression-ignition internal combustion piston engines (diesel or semi-diesel engines) 840820 Engines; compression-ignition internal combustion piston engines (diesel or semi-diesel engines), of a kind used for the propulsion of vehicles of chapter 87 840890 Engines; compression-ignition internal combustion piston engines (diesel or semi-diesel engines), of a kind used for other than marine propulsion or the vehicles of chapter 87