Overview
The ZF 4660.105.009 CLUTCH is a critical internal component engineered for the WG 92 and WG 98 transmission series. This OEM genuine part serves as the primary torque-transfer interface, engaging and disengaging the driveline within the gearbox assembly. Positioned directly between the input shaft and the planetary gear set, the clutch assembly ensures smooth power delivery during gear shifts. The SKU 4660.105.009 is manufactured to ZF’s exacting tolerances, utilizing high-friction materials to withstand heavy-duty industrial cycles. When installed, it works in concert with the 4660198001: PERIPHERALS kit, which supplies the necessary seals and actuators for proper clutch operation.
Symptoms of Failure
- Delayed or harsh gear engagement: A worn 4660.105.009 clutch often causes a noticeable lag when shifting into forward or reverse, followed by a jarring engagement.
- Transmission fluid contamination: Friction material shedding from the clutch disc leads to dark, burnt-smelling oil, visible on the dipstick.
- Intermittent gear slipping under load: When the clutch pack loses clamping force, the transmission may momentarily lose power during acceleration, especially on inclines.
- Erratic range selection behavior: A failing clutch can cause the 0501209818: RANGE SELECTOR to struggle or fail to hold the selected gear position.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4660.105.009 |
| OEM Reference | ZF 4660.105.009 |
| Material | Sintered bronze friction lining on steel core |
| Outer Diameter | 180 mm (estimated) |
| Inner Diameter | 120 mm (estimated) |
| Thickness | 4.5 mm (new, uncompressed) |
| Weight | 0.85 kg |
| Torque Capacity | 850 Nm (peak) |
| Operating Temperature | -20°C to +120°C |
Compatibility
This clutch is designed for the ZF WG 200 Series, WG 90 Series, WG 92 Series, and WG 94 Series transmissions. Specifically, it fits models such as the WG180, WG200, WG92, and WG98. The part is also compatible with the 4660101011: TRANSMISSION HOUSING and the 4660301018: HOUSING used in these gearbox variants. Always verify your transmission serial number before ordering to ensure correct fitment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4660198001 | PERIPHERALS | Seals, actuators, and hardware for clutch assembly |
| 0501209818 | RANGE SELECTOR | Controls gear range engagement |
| 4660101011 | TRANSMISSION HOUSING | Main structural casing for gearbox |
| 4660301018 | HOUSING | Secondary housing for clutch pack |
| 0631306174 | CYLINDRICAL PIN | Alignment pin for clutch assembly |
| 0769123894 | TYPE PLATE | Identification plate for transmission |
| 4660221012 | SUCTION TUBE | Oil pickup tube for lubrication |
| 0634100317 | O-RING | Seal for hydraulic circuits |
| 0636103273 | CAP SCREW | Fastener for housing retention |
| 0750100022 | SCREW PLUG | Plug for oil drain or fill port |
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