| Chapter Code | Chapter Description |
|---|
| 8404 | AUXILIARY PLANT FOR USE WITH BOILERS OF HEADING 8402 OR 8403 (FOR EXAMPLE, ECONOMISERS, SUPER-HEATERS, SOOT REMOVERS, GAS RECOVERS); CONDENSERS FOR STEAM OR OTHER VAPOUR POWER UNITS |
| 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 |
| 8406 | STEAM TURBINES AND OTHER VAPOUR TURBINES |
| 8407 | SPARK-IGNITION RECIPROCATING OR ROTARY INTERNAL COMBUSTION PISTON ENGINES |
| 8408 | COMPRESSION-IGNITION INTERNAL COMBUSTION PISTON ENGINES (DIESEL OR SEMI-DIESEL ENGINES) |
| 8409 | PARTS SUITABLE FOR USE SOLELY OR PRINCIPALLY WITH THE ENGINES OF HEADING 8407 OR 8408 |
| 8410 | HYDRAULIC TURBINES, WATER WHEELS AND REGULATORS THEREFOR HYDRAULIC TURBINS AND WATER WHEELS |
| 8411 | TURBO-JETS, TURBO-PROPELLERS AND OTHER GAS TURBINES |