| S/N start | S/N end | Variant |
| 12001 | 12103 | 1591607 |
| 2003 | 2690 | 1591607 |
| 2692 | 2734 | 1591607 |
| 7001 | 7271 | 1591607 |
254.520.
AdBlue/DEF pump
15185564, 15185565, 17481128
`
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Parts on group AdBlue/DEF pump:
| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | VOE22608244 | [1] | Pump | |
| 2. | VOE21687877 | [1] | Pressure sensor | GREEN |
| 3. | VOE21687880 | [1] | Combination valve | |
| 4. | VOE22209505 | [1] | Pressure sensor | |
| 5. | VOE21687873 | [1] | Pump | |
| 6. | VOE22608093 | [1] | Overflow valve | |
| 7. | VOE21687882 | [1] | Valve | |
| 8. | VOE21781135 | [1] | Adapter kit | |
| 9. | VOE22040854 | [1] | Air filter | |
| 10. | VOE21687888 | [1] | Connector | |
| 11. | VOE21688317 | [1] | Bracket kit | |
| 12. | VOE21687885 | [1] | Connector | |
| VOE22105222 | [1] | Protecting cover |
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