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Cummins Engine Aftertreatment System NOx Sensor 5593951
Cummins NOx Sensor Cross-Reference List (BOM Detailed List)
| No. | Cummins PN / Ref Code | Voltage | System Location | Engine Application & Emission Standard |
|---|---|---|---|---|
| 01 | 5593951 / A062U284 | 24V | Downstream / Outlet | Cummins B6.7 / F3.8 / L9, Euro 6 / BS-VI emission systems |
| 02 | 4326862 / A045S156 | 12V | Upstream / Inlet | Cummins ISC / ISL 8.9L, US EPA13 / Euro 5 heavy-duty truck systems |
| 03 | 4326863 / A045S157 | 12V | Downstream / Outlet | Cummins ISC / ISL 8.9L, US EPA13 emission systems |
| 04 | 4326867 / A045S161 | 24V | Upstream / Inlet | Cummins ISB / ISL / QSL series, Euro 5 / National V commercial vehicles |
| 05 | 4326870 / A045S167 | 24V | Upstream / Inlet | Cummins heavy-duty ISX15 / X15, EPA13 platform systems |
| 06 | 4326871 / A045S168 | 24V | Downstream / Outlet | Cummins heavy-duty ISX15 / X15, EPA13 platform systems |
| 07 | 4326872 / A045S169 | 12V | Upstream / Inlet | Cummins ISX12 / ISX15 heavy-duty truck power systems |
| 08 | 4326873 / A045S170 | 12V | Downstream / Outlet | Cummins ISX12 / ISX15 heavy-duty truck power systems |
| 09 | 4327153 / A047R390 | 24V | Specific Location | Cummins Smart Aftertreatment SCR Module control systems |
| 10 | 4359309 / A050G218 | 24V | Downstream / Outlet | Cummins ISF2.8 / ISF3.8 light truck engines, National V/VI systems |
| 11 | 4384740 / A055F798 | 24V | Upstream / Inlet | Cummins ISZ13 / High-Horsepower models aftertreatment systems |
| 12 | 5593958 / A062U291 | 24V | Upstream / Inlet | Cummins B6.7 / L9, Euro 6 upgraded platform |
| 13 | 5594498 / A064E128 | 24V | Downstream / Outlet | Cummins new National VI (China VI) diesel engine integrated SCR systems |
| 14 | 5594572 / A063T161 | 24V | Downstream / Outlet | Cummins X12 / X13 / YCK series heavy-duty National VI engines |
| 15 | 5594608 / A063W651 | 24V | Upstream / Inlet | Cummins DFCV (Dongfeng) / BFCEC (Foton) heavy truck National VI systems |
| 16 | 5698478 / A066V797 | 24V | Advanced Upstream | Cummins latest National VI-B (Stage VI-B) high-precision emission controls |
| 17 | 5698479 / A066V796 | 24V | Advanced Downstream | Cummins latest National VI-B (Stage VI-B) high-precision emission controls |
| 18 | 5462436 / A059B031 | 24V | Downstream / Outlet | Cummins ISB / ISDe / ISM series, National V/VI transition systems |
Analysis of Common Failure Modes
1. Sensor Poisoning: Poor fuel quality (excessive sulfur content) or engine oil consumption (introducing phosphorus, zinc, or silicon) can cause a layer of non-conductive chemical substances to coat the probe surface, resulting in sluggish sensor response.
2. Thermal Shock: Condensation accumulates in the exhaust pipe during cold starts; if the probe's heating rate is not properly controlled, water droplets splashing onto the heated ceramic element can cause it to crack.
3. Connector Corrosion: Road de-icing agents used in winter can allow saline water to seep into the 5-pin or 4-pin waterproof connectors, leading to terminal corrosion and interruption of CAN bus signals.
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