| 123 / | HD | INTERNAL-COMBUSTION ENGINES |
| 434 | DF | CHARGE FORMING DEVICE (E.G., POLLUTION CONTROL) {29} |
| 445 | DF | .~ Fuel injection system {5} |
| 446 | DF | .~.~ Fuel pump flow regulation {4} |
| 452 | | .~.~.~ Nonsequential distributor {4} |
| 453 | DF | .~.~.~.~> Enrichment of the combustible mixture for cold starting or cold running |
| 454 | DF | .~.~.~.~> Equal pressure valve type |
| 455 | DF | .~.~.~.~> Distributor and metering unit are in common housing |
| 456 | DF | .~.~.~.~> Common rail system |