| 84.03 | | Central heating boilers other than those of heading 84.02. |
| 84.04 | | Auxiliary plant for use with boilers of heading 84.02 or 84.03 (for example, economisers, super-heaters, soot removers, gas recoverers); condensers for steam or other vapour power units. |
| 8404.10 | 000 | Auxiliary plant for use with boilers of heading 84.02 or 84.03 |
| 84.05 | | 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. |
| 8405.10 | 000 | 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 |
| 8406.81 | 000 | Of an output exceeding 40 MW |
| 8406.82 | 000 | Of an output not exceeding 40 MW |
| 84.07 | | Spark-ignition reciprocating or rotary internal combustion piston engines. |
| 8407.10 | 000 | Aircraft engines |
| 8407.10 | | Marine propulsion engines : |
| 8407.29 | | Reciprocating piston engines of a kind used for the propulsion of vehicles of Chapter 87 : |
| 8407.31 | 000 | Of a cylinder capacity not exceeding 50 cc |
| 8407.32 | 000 | Of a cylinder capacity exceeding 50 cc but not exceeding 250 cc |
| 8407.33 | 000 | Of a cylinder capacity exceeding 250 cc but not exceeding 1,000 cc |
| 8407.34 | 000 | Of a cylinder capacity exceeding 1,000 cc |
| 8407.90 | 000 | Other engines |
| 84.08 | | Compression-ignition internal combustion piston engines (diesel or semi-diesel engines). |
| 8408.10 | 000 | Marine propulsion engines |
| 8408.20 | 000 | Engines of a kind used for the propulsion of vehicles of Chapter 87 |
| 8408.90 | | Other engines |
| 8408.90 | | - For land, with a rating of not more than 500 PS; for works trucks of heading 84.27 |
| 8408.90 | 011 | -- With a rating of not more than 100 PS |
| 8408.90 | 019 | -- With a rating of more than 100 PS |
Harmonized Tariff Schedule of Japans inquiry: /etc/passwd
