Overview
The ZF 2094.340.003 LIFTING SHAFT (SKU: 2094.340.003) is a critical OEM genuine component engineered for the WG100, WG130, and WG131 transmission series. This shaft serves as the primary mechanical interface for engaging the power take-off (PTO) or auxiliary hydraulic systems, translating rotational motion into linear lift action within the gear train. Positioned directly inside the 2094101012: TRANSMISSION HOUSING, it interacts with the 2094301036: HOUSING to ensure precise alignment during heavy-duty operations. As a genuine ZF part, it guarantees exact fitment and load-bearing capacity, preventing premature wear in commercial vehicle transmissions.
Symptoms of Failure
- Hydraulic lift hesitation or incomplete engagement – When the lifting shaft wears, the PTO may fail to fully engage, causing intermittent power loss during operation.
- Oil seepage around the shaft bore – A worn shaft can compromise the seal surface, leading to transmission fluid leaks that contaminate the 2094298057: HOUSING.
- Metallic grinding noise during gear shifts – Excessive play in the lifting shaft creates abnormal contact with adjacent gears, producing audible grinding sounds under load.
- Increased vibration in neutral or low range – A fatigued shaft loses its torsional rigidity, transmitting vibrations through the 2094301071: COVER and into the driveline.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2094.340.003 |
| Overall Length | 245 mm (estimated) |
| Shaft Diameter | 35 mm (estimated) |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Weight | 1.8 kg (estimated) |
| OEM Reference | ZF 2094.340.003 |
| Surface Finish | Ground and polished, 0.8 µm Ra |
Compatibility
This lifting shaft is specifically designed for ZF WG-series transmissions, including the WG100, WG130, and WG131 models. It is also compatible with select variants of the WG180 and WG200 series where the PTO lift mechanism shares the same spline count and bore geometry. Always verify your transmission serial number against the OEM parts catalog to confirm fitment. For proper sealing, pair this shaft with a new 0750111371: SHAFT SEAL and 0634303085: O-RING during installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2094101012 | TRANSMISSION HOUSING | Encloses the gear train and supports the lifting shaft |
| 2094301036 | HOUSING | Provides bearing support for the shaft assembly |
| 2094298057 | HOUSING | Secondary housing for PTO engagement mechanism |
| 2094301071 | COVER | Seals the shaft access port and retains lubrication |
| 0750111371 | SHAFT SEAL | Prevents oil leakage along the rotating shaft |
| 0634303085 | O-RING | Creates a static seal between housing interfaces |
| 2094301030 | GASKET | Provides a leak-proof joint for the cover plate |
| 0631306670 | CYLINDRICAL PIN | Aligns and secures the shaft within the housing |
| 0636011356 | HEXAGON SCREW | Fastens the cover and housing components |
| 4475280060 | SCREW PLUG | Seals hydraulic ports in the transmission housing |
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