Overview
The ZF 4660.001.017 WG 92 Powershift Transmission Assembly | Complete Unit is a fully assembled drop-in replacement designed for heavy-duty off-highway applications. This complete unit integrates the torque converter, clutch packs, and planetary gear sets into a single, pre-tested assembly. As a core component of the WG 92 Series, it manages power distribution from the engine to the driveline, ensuring smooth directional shifts and load-holding capability under extreme torque. The SKU 4660.001.017 is a direct OEM-specification unit, eliminating the need for partial rebuilds. For optimal system integrity, this assembly works in concert with the 4660198001 PERIPHERALS kit, which includes necessary seals and sensors for a complete installation.
Symptoms of Failure
- Delayed or harsh engagement: When the transmission hesitates before moving forward or reverse, or slams into gear, the internal clutch packs within the 4660.001.017 are likely worn.
- Oil leaks at the bell housing or PTO interface: External seepage around the main housing gasket indicates seal degradation, often requiring replacement of the 4660301018 HOUSING or its mating gaskets.
- Loss of power under load: If the machine struggles to climb grades or maintain speed while towing, the torque converter stator or clutch piston seals inside the complete unit are failing.
- Erratic shifting or neutral creep: Uncommanded movement when the shifter is in neutral points to valve body or spool wear, often linked to a failing 0501209818 RANGE SELECTOR assembly.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4660.001.017 |
| Series | WG 92 |
| Dry Weight (approx.) | 185 kg (408 lbs) |
| Overall Length | 620 mm |
| Input Torque Capacity | 1,200 Nm |
| Housing Material | Cast Iron (GGG-40) |
| OEM Reference | ZF 4660.001.017 |
| Fluid Capacity | 14.5 liters (ATF Dexron III) |
Compatibility
This WG 92 Powershift Transmission Assembly is engineered for ZF’s WG series powershift transmissions used in wheel loaders, telehandlers, and industrial tractors. It is a direct fit for the WG 92, WG 180, and WG 200 models when configured with a 4-speed or 6-speed forward/reverse layout. The unit also integrates with the 4660101011 TRANSMISSION HOUSING to ensure correct alignment of the input shaft and pump drive. Always verify the bell housing pattern and PTO configuration before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4660198001 | PERIPHERALS | Seal kit and sensor assembly for transmission installation |
| 0501209818 | RANGE SELECTOR | Manual or electro-hydraulic shift control valve |
| 4660101011 | TRANSMISSION HOUSING | Main structural casing for gear and shaft support |
| 4660301018 | HOUSING | Rear cover housing for PTO and output flange |
| 0631306174 | CYLINDRICAL PIN | Alignment dowel for housing mating surfaces |
| 0769123894 | TYPE PLATE | Identification plate with serial number and specs |
| 4660221012 | SUCTION TUBE | Oil pick-up tube from sump to pump |
| 0634100317 | O-RING | Hydraulic seal for tube and port connections |
| 0636103273 | CAP SCREW | High-tensile bolt for housing fastening |
| 0750100022 | SCREW PLUG | Drain or fill port plug with sealing washer |
