Overview
The ZF 4616.125.011 INDUCTIVE SENSOR is a precision electronic component engineered for the WG 65 series transmission. This OEM genuine part monitors rotational speed and position of internal shafts by generating a magnetic field that detects metallic targets without physical contact. Mounted directly into the TRANSMISSION HOUSING, the sensor transmits critical data to the transmission control unit, enabling precise shift timing and clutch modulation. The SKU 4616.125.011 is a direct replacement for the original factory-installed unit, ensuring seamless integration with your existing harness and mounting points.
Symptoms of Failure
- Erratic gear engagement or delayed shifting – When the inductive sensor fails, the transmission control unit receives inaccurate speed data, causing harsh or delayed shifts between gears.
- Transmission stuck in limp mode – A faulty sensor triggers diagnostic trouble codes, forcing the transmission into a reduced-power safety mode to prevent internal damage.
- Intermittent loss of torque converter lockup – The sensor’s inability to detect turbine speed leads to inconsistent converter clutch application, resulting in fuel economy loss and elevated fluid temperatures.
- No start condition or engine crank without engagement – In severe cases, the control unit refuses to command gear engagement when the sensor signal is absent or erratic.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4616.125.011 |
| Sensor Type | Inductive (passive magnetic) |
| Operating Voltage | 10–30 VDC |
| Output Signal | Digital square wave (NPN open collector) |
| Housing Material | Stainless steel with brass sensing face |
| Thread Size | M12 x 1.5 |
| Overall Length | 65 mm |
| Weight | 0.04 kg (1.4 oz) |
| OEM Reference | ZF 4616.125.011 |
| Temperature Range | -40°C to +125°C |
| Protection Rating | IP67 |
Compatibility
This inductive sensor is specifically designed for the ZF WG 65 series transmission, which includes models such as WG65, WG80, WG100, WG120, WG150, WG180, and WG200. It is also compatible with certain off-highway and industrial drivetrains that share the same sensor mounting interface. Always verify your transmission serial number against the OEM parts catalog to confirm fitment. The sensor is secured using HEXAGON SCREW fasteners, and proper torque is critical to avoid signal interference.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4616101089 | TRANSMISSION HOUSING | Main structural casing that encloses all gear sets and shafts |
| 0636011038 | HEXAGON SCREW | Fastener for securing sensor bracket to housing |
| 0636011118 | HEXAGON SCREW | Fastener for valve body or cover plate attachment |
| 0636016015 | HEXAGON SCREW | High-strength bolt for bell housing connection |
| 0631306085 | CYLINDRICAL PIN | Alignment dowel for precise sensor positioning |
| 0634313118 | O-RING | Seal between sensor and housing to prevent fluid ingress |
| 0636304019 | SCREW PLUG | Closes unused sensor ports in the housing |
| 0634801152 | SEALING RING | Copper washer for oil drain or fill plugs |
| 0732611049 | FILTER INSERT | Internal mesh filter protecting hydraulic circuits |
| 0634303718 | O-RING | Secondary seal for sensor connector interface |
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