Description
Genuine Cummins 4327231 engine speed sensor for B-series 5.9L industrial and ISB applications. The dual-connector, 4-wire sensor threads into the gear case on a 3/4-16 fitting and reads target-wheel speed for the engine ECM, supplying RPM and crank-position data. Used in Tier 1 construction 5.9L B-series builds and select on-highway ISB applications.
Specifications
| Manufacturer | Cummins (Genuine OEM) |
|---|---|
| Part Number | 4327231 |
| Part Type | Engine Speed Sensor |
| Thread | 3/4-16 |
| Wire Quantity | 4 wires |
| Connectors | 2 connectors |
| Engine Compatibility | Cummins B-series 5.9L (Tier 1 industrial / ISB) |
Cross References
This part replaces or is equivalent to the following Cummins part numbers:
- Cummins: 4327231, 2872351, 3049474, 3073896, 3078152
Applications
This engine speed sensor fits the following Cummins applications:
- Cummins B-series 5.9L (Tier 1 industrial / construction)
- Cummins ISB 5.9L (selected on-highway builds — verify by ESN)
Verify your engine serial number and confirm dual-connector layout before ordering — Cummins uses several speed-sensor variants across the B/ISB/QSB family with different connector configurations.
