| 8404 | | Auxiliary plant for use with boilers of heading 8402 or 8403 (for example, economizers, super-heaters, soot removers, gas recoverers); condensers for steam or other vapor power units; parts thereof: | | | | |
| 8404.10.00 | | Auxiliary plant for use with boilers of heading 8402 or 8403 | | 3.5% | Free (A,AU,BH,CA, CL,E,IL,J,JO, MA,MX,P,SG) | 45% |
| 8405 | | Producer gas or water gas generators, with or without their purifiers; acetylene gas generators and similar water process gas generators, with or without their purifiers; parts thereof: | | | | |
| 8405.10.00 | 00 | Producer gas or water gas generators, with or without their purifiers; acetylene gas generators and similar water process gas generators, with or without their purifiers | X | Free | | 45% |
| 8406.10 | | Turbines for marine propulsion: | | | | |
| 8406.90.20 | 00 | Rotors, finished for final assembly | No. | 6.7% | Free (A,AU,BH,CA, CL,E,IL,J,JO, MA,MX,P,SG) | 20% |
| 8406.90.30 | 00 | Rotors, not further advanced than cleaned or machined for removal of fins, gates, sprues, and risers, or to permit location in finishing machinery | No. | 6.7% | Free (A,AU,BH,CA, CL,E,IL,J,JO, MA,MX,P,SG) | 20% |
| 8406.90.40 | 00 | Blades, rotating or stationary | No. | 6.7% | Free (A,AU,BH,CA, CL,E,IL,J,JO, MA,MX,P,SG) | 20% |
| 8406.90.45 | 40 | Rotors or spindles and rotor or spindle assemblies | No. | | | |
| 8406.90.50 | 00 | Rotors, finished for final assembly | No. | Free | | 27.5% |
| 8406.90.60 | 00 | Rotors, not further advanced than cleaned or machined for removal of fins, gates, sprues, and risers, or to permit location in finishing machinery | No. | Free | | 27.5% |
| 8406.90.70 | 00 | Blades, rotating or stationary | No. | Free | | 27.5% |
| 8407 | | Spark-ignition reciprocating or rotary internal combustion piston engines: | | | | |
| 8407.10.00 | 20 | For use in civil aircraft : | | | | |
| 8407.10.00 | 60 | Used or rebuilt | No. | | | |
| 8407.10.00 | 20 | Less than 373 kW | No. | | | |
| 8407.21.00 | | Marine propulsion engines: | | | | |
| 8407.21.00 | 40 | Less than 22.38 kW | No. | | | |
| 8407.29.00 | 20 | Less than 746 W | No. | | | |
| 8407.31.00 | | Reciprocating piston engines of a kind used for the propulsion of vehicles of chapter 87: | | | | |
| 8407.31.00 | | Of a cylinder capacity not exceeding 50 cc | | Free | | 35% |
| 8407.31.00 | 40 | Less than 746 W | No. | | | |
| 8407.32 | | Of a cylinder capacity exceeding 50 cc but not exceeding 250 cc: | | | | |
| 8407.32.10 | 00 | To be installed in tractors suitable for agricultural use | No. | Free | | Free |
| 8407.32.20 | | To be installed in vehicles of subheading 8701.20, or heading 8702, 8703 or 8704 | | Free | | 35% |
Harmonized Tariff Schedule of the United States inquiry: d
