Overview
The ZF 0501.309.557 INDUCTIVE SENSOR is a critical electronic component within the control unit assembly of ZF WG-series automatic transmissions. This OEM genuine part monitors rotational speed and position of internal shafts by generating a magnetic field that reacts to ferrous targets on the gear train. Specifically designed for the WG100, WG130, and WG131 models, the sensor transmits real-time data to the transmission control module (TCM) to optimize shift timing and clutch engagement. The SKU 0501.309.557 ensures precise signal accuracy, directly influencing overall drivetrain efficiency and longevity.
Symptoms of Failure
- Erratic or delayed shifting: A failing inductive sensor sends intermittent or false signals, causing the TCM to miscalculate shift points. This often results in harsh gear changes or hesitation during acceleration.
- Transmission slipping under load: When the sensor fails to detect shaft speed correctly, the transmission may slip out of gear, especially when climbing grades or towing heavy loads.
- Check engine or transmission warning light: The TCM logs diagnostic trouble codes (DTCs) such as P0715 or P0720 when the sensor signal is out of range, triggering dashboard alerts.
- No reverse or forward engagement: Complete sensor failure can prevent the TCM from confirming gear engagement, leaving the transmission stuck in neutral or limp mode.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0501.309.557 |
| Type | Inductive Proximity Sensor |
| Operating Voltage | 10–30 V DC |
| Output Signal | Digital (NPN/PNP) |
| Housing Material | Stainless Steel / Thermoplastic |
| Thread Size | M12 x 1.0 |
| Overall Length | 55 mm |
| Weight | 0.04 kg (40 g) |
| OEM Reference | ZF 0501.309.557 |
| Sealing | IP67 Rated |
Compatibility
This inductive sensor is engineered for ZF WG-series transmissions, specifically the WG100, WG130, and WG131 models. It is also compatible with the WG180 and WG200 series when used in conjunction with the appropriate 4108101057 HOUSING and 4108201177 HOUSING assemblies. For proper installation, ensure the sensor is paired with the 0636302056 SCREW PLUG to secure the mounting bore, and the 4108301304 BEARING COVER to protect the sensor from debris. Always verify fitment against your transmission’s serial number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4108101057 | HOUSING | Encloses sensor and wiring harness |
| 4108201177 | HOUSING | Secondary housing for sensor alignment |
| 0636302056 | SCREW PLUG | Seals sensor mounting port |
| 4108301304 | BEARING COVER | Protects sensor from contamination |
| 4108306173 | GASKET | Prevents oil leaks at sensor interface |
| 0750110040 | SHAFT SEAL | Seals rotating shaft near sensor |
| 6053108155 | CONTROL COVER | Covers TCM and sensor wiring |
| 6053308348 | CONTROL COVER | Alternate cover for sensor access |
| 0636010188 | HEXAGON SCREW | Fastens sensor bracket |
| 0636010192 | HEXAGON SCREW | Secures housing assembly |
