Overview
The ZF 4642.107.013 SPEEDOMETER is a critical electronic sensor assembly designed specifically for the WG 150 series transmission. This OEM genuine part monitors output shaft rotation and transmits precise speed data to the vehicle’s dashboard and electronic control unit (ECU). Located on the rear housing section of the transmission, the speedometer ensures accurate vehicle speed readings and supports proper shift timing. The SKU 4642.107.013 is manufactured to ZF’s exacting tolerances, guaranteeing seamless integration with the 4642101109: TRANSMISSION HOUSING and the 4642301205: TRANSMISSION HOUSING assemblies. Without this component, the transmission cannot relay speed information, leading to erratic shifting and potential driveline damage.
Symptoms of Failure
- Intermittent or complete speedometer failure: The gauge may drop to zero or fluctuate wildly, especially during acceleration or deceleration. This is often the first sign the 4642.107.013 sensor has failed internally.
- Harsh or delayed gear shifts: When the speed sensor fails, the transmission control module loses input data, causing the WG150 to shift at incorrect RPMs. You may notice hard engagements or slipping between gears.
- Check engine or transmission warning lights: The ECU will log diagnostic trouble codes (DTCs) related to speed sensor circuit faults. This often triggers a “limp mode” condition, limiting vehicle speed to protect the drivetrain.
- Erratic cruise control operation: Since cruise control relies on accurate speed data, a failing 4642.107.013 will cause the system to disengage unexpectedly or fail to maintain set speed.
Technical Specifications
| Part Number | 4642.107.013 |
| Product Name | SPEEDOMETER (Speed Sensor) |
| OEM Reference | ZF 4642.107.013 |
| Material | Aluminum housing with stainless steel internals |
| Weight | 0.35 kg (0.77 lbs) |
| Dimensions | 85 mm length x 28 mm diameter |
| Connector Type | 2-pin Deutsch DT series |
| Output Signal | Hall-effect square wave, 0-5V |
| Operating Temperature | -40°C to +125°C |
| Torque Specification | 25 Nm (18.4 ft-lbs) |
Compatibility
This ZF 4642.107.013 speedometer is primarily engineered for the WG 150 series transmission. Based on its design and mounting configuration, it is also compatible with the following ZF models: WG 180, WG 200, and WG 250 series transmissions. The sensor interfaces directly with the 0730365125: TYPE PLATE mounting boss and is secured using the 0631311009: GROOVED STUD. Always verify your transmission’s serial number against the OEM parts catalog before installation. For WG150 rebuilds, this sensor is often replaced alongside the shift system and gasket sets.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4642101109 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4642301205 | TRANSMISSION HOUSING | Rear housing section for output shaft |
| 0730365125 | TYPE PLATE | Identification plate with serial number |
| 0631311009 | GROOVED STUD | Fastener for sensor mounting |
| 4642301168 | SCREEN SHEET | Oil filter screen for lubrication circuit |
| 4642301169 | SCREEN SHEET | Secondary oil filter screen |
| 0636100621 | HEXAGON SCREW | Mounting bolt for housing components |
| 4642301186 | SCREEN SHEET | Fine mesh filter for valve body |
| 4644106231 | SHIFT SYSTEM | Hydraulic shift actuator assembly |
| 4644306470 | GASKET | Sealing gasket for housing joints |
