Overview
The ZF 4661.124.010 TEMPERATURE SENSOR is a critical monitoring component engineered specifically for the WG 94 Series transmission family. This OEM genuine part sits directly within the valve body or main housing assembly, where it continuously measures hydraulic fluid temperature to ensure optimal clutch engagement and shift timing. The sensor transmits real-time data to the transmission control unit (TCU), preventing thermal overload and maintaining system efficiency. The SKU 4661.124.010 is a direct factory replacement, guaranteeing precise resistance values and sealing integrity for long service life.
Symptoms of Failure
- Erratic shifting or delayed gear engagement: A failing temperature sensor sends incorrect fluid temperature readings, causing the TCU to miscalculate shift points, leading to harsh or delayed shifts.
- Transmission overheating without warning: When the sensor fails, the TCU may not detect rising fluid temperatures, allowing the transmission to overheat and potentially damage internal seals and clutches.
- Incorrect fluid level indications: Faulty temperature data can trigger false low-fluid warnings or prevent proper thermal expansion compensation, leading to inaccurate dipstick readings.
- Check engine or transmission warning light: The TCU logs diagnostic trouble codes (DTCs) related to sensor circuit range/performance, often accompanied by reduced power mode (limp-home).
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4661.124.010 |
| OEM Reference | ZF 4661.124.010 |
| Material | Brass housing with stainless steel probe |
| Weight | 0.045 kg (approx.) |
| Thread Size | M14 x 1.5 |
| Temperature Range | -40°C to +150°C |
| Electrical Connector | 2-pin flat blade (DIN 72585) |
| Seal Type | Copper washer (integrated) |
Compatibility
This temperature sensor is primarily designed for the ZF WG 94 Series, including models such as WG94, WG180, WG200, and WG210. It is also compatible with select ZF Ecomat 4HP and 5HP transmissions that share the same sensor port configuration. Always verify your transmission model and housing bore size before installation. The sensor works in conjunction with the 4661101046 HOUSING and 4661301125 HOUSING II to secure the sensor in the valve body. Additionally, the 0631306174 CYLINDRICAL PIN aligns the sensor during assembly, while the 0769123894 TYPE PLATE provides identification for the correct sensor variant.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4661101046 | HOUSING | Encloses sensor and valve body assembly |
| 4661301125 | HOUSING II | Secondary housing for sensor mounting |
| 0631306174 | CYLINDRICAL PIN | Alignment pin for sensor installation |
| 0769123894 | TYPE PLATE | Identification plate for sensor variant |
| 0750100022 | SCREW PLUG | Seals unused sensor ports |
| 4660201008 | SCREW PLUG | Oil passage plug for valve body |
| 0636100117 | SCREW PLUG | Threaded plug for pressure ports |
| 0501211384 | VALVE | Pressure control valve for shift solenoids |
| 0732042156 | COMPRESSION SPRING | Returns valve spool to neutral position |
| 0768409154 | SCREW PLUG | Seals cooler line ports |
