Overview
The ZF 4616.107.009 SPEEDOMETER is a critical electro-mechanical component engineered specifically for the WG 65 Series transmission family. This OEM genuine part monitors output shaft rotation and transmits precise speed data to the vehicle’s instrument cluster and electronic control unit. Positioned within the rear housing assembly, the speedometer interfaces directly with the transmission’s rotating components to ensure accurate vehicle speed readings. The SKU 4616.107.009 is a direct replacement unit that maintains factory calibration and signal integrity, preventing driveline miscommunication that can lead to improper shift timing or cruise control malfunctions.
Symptoms of Failure
- Erratic or fluctuating speedometer needle – A worn 4616.107.009 often produces intermittent signal dropout, causing the gauge to bounce or drop to zero unexpectedly during highway driving.
- Transmission shift hesitation or harsh engagement – When the speed sensor fails, the transmission control module loses critical input, leading to delayed upshifts or abrupt downshifts as the system defaults to backup parameters.
- Check engine or transmission warning light activation – Fault codes P0500 (Vehicle Speed Sensor Malfunction) or P0722 (Output Speed Sensor No Signal) frequently trace back to a degraded speedometer unit in WG65 applications.
- Complete loss of speed display with odometer freeze – A total failure of this part stops all speed-related data transmission, leaving the driver without speed feedback and preventing distance accumulation.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4616.107.009 |
| OEM Reference | ZF 4616.107.009 |
| Material | Reinforced thermoset polymer housing with brass signal rotor |
| Weight | 0.42 kg (0.93 lbs) |
| Overall Length | 98 mm |
| Mounting Thread | M18 x 1.5 |
| Output Signal Type | Hall-effect digital square wave |
| Operating Temperature Range | -40°C to +125°C |
| Sealing Class | IP67 (with O-ring installed) |
Compatibility
This speedometer is designed for the ZF WG 65 Series, but its mounting pattern and signal characteristics also suit several other ZF off-highway and commercial vehicle transmissions. Verified compatible models include the WG180, WG200, WG210, and WG250 series, provided the transmission uses the standard M18 speedometer port. For proper installation, always pair this unit with a new 0634313118: O-RING to prevent fluid ingress. The speedometer mounts directly into the 4616101089: TRANSMISSION HOUSING, and is secured using 0636011038: HEXAGON SCREW fasteners. Additional mounting hardware includes 0636011118: HEXAGON SCREW and 0636016015: HEXAGON SCREW for the housing cover plate.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4616101089 | TRANSMISSION HOUSING | Main structural casing housing all internal gear sets and shafts |
| 0636011038 | HEXAGON SCREW | M10 fastener for securing housing sections |
| 0636011118 | HEXAGON SCREW | M12 fastener for output flange retention |
| 0636016015 | HEXAGON SCREW | M16 fastener for PTO cover plate |
| 0631306085 | CYLINDRICAL PIN | Alignment dowel for housing positioning |
| 0634313118 | O-RING | Seal for speedometer mounting bore |
| 0636304019 | SCREW PLUG | Oil drain or test port plug |
| 0634801152 | SEALING RING | Copper crush washer for plug sealing |
| 0732611049 | FILTER INSERT | Internal oil filter element |
| 0634303718 | O-RING | Seal for filter cover housing |
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