| 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% |
| 8404.10.00 | 10 | Economizers | t | | | |
| 8404.20.00 | 00 | Condensers for steam or other vapor power units | t | 5.6% | 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% |
| 8406.81 | | Of an output exceeding 40 MW: | | | | |
| 8406.81.10 | 20 | Stationary steam turbines, condensing type | No. | | | |
| 8406.82 | | Of an output not exceeding 40 MW: | | | | |
| 8406.82.10 | 10 | Stationary steam turbines, condensing type: | | | | |
| 8406.82.10 | 10 | Not exceeding 7,460 kW | No. | | | |
| 8406.82.10 | 20 | Exceeding 7,460 kW | No. | | | |
| 8406.82.10 | 50 | Not exceeding 7,460 kW | No. | | | |
| 8406.82.10 | 70 | Exceeding 7,460 kW | No. | | | |
| 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% |
| 8406.90.60 | 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% |
| 8407 | | Spark-ignition reciprocating or rotary internal combustion piston engines: | | | | |
| 8407.10.00 | | Aircraft engines | | Free | | 35% |
| 8407.10.00 | 20 | For use in civil aircraft : | | | | |
| 8407.10.00 | 20 | Less than 373 kW | No. | | | |
| 8407.10.00 | 40 | 373 kW or over | No. | | | |
| 8407.21.00 | 40 | Less than 22.38 kW | No. | | | |
| 8407.29.00 | 30 | 746 W or greater, but not exceeding 18.65 kW | No. | | | |
| 8407.29.00 | 40 | Exceeding 18.65 kW | No. | | | |
| 8407.31.00 | | Reciprocating piston engines of a kind used for the propulsion of vehicles of chapter 87: | | | | |
