Overview
The ZF 2094.140.005 POWER LIFT is a critical hydraulic actuation component engineered for heavy-duty construction machinery transmissions. This OEM genuine part controls the lifting function within the transmission housing, managing oil flow to engage and disengage the power take-off (PTO) system. Positioned directly within the valve body assembly, the SKU 2094.140.005 works in concert with the 2094101018: TRANSMISSION HOUSING to ensure precise hydraulic pressure regulation. When installed correctly, this power lift unit enables smooth, load-sensitive lifting operations essential for wheel loaders, graders, and dump trucks operating in demanding environments.
Symptoms of Failure
- Intermittent lifting hesitation under load: The power lift fails to maintain consistent hydraulic pressure, causing the attachment to drop or stutter when lifting heavy materials—a common search query for “ZF transmission lift lag.”
- External oil seepage around the valve body: Worn seals within the 2094.140.005 allow transmission fluid to escape, often visible as drips near the 2094301069: HOUSING interface. This symptom frequently triggers searches for “ZF power lift oil leak repair.”
- Audible hydraulic whine or chatter: Internal spool wear creates cavitation noises during lift activation, indicating the unit can no longer maintain proper oil flow direction.
- Complete loss of lift function: The PTO remains disengaged regardless of operator input, often traced to a seized piston within the power lift assembly.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2094.140.005 |
| Product Type | Power Lift / Hydraulic Actuator |
| Material | Hardened Steel with Nitrile Seals |
| Weight | 1.8 kg (3.97 lbs) |
| Overall Length | 145 mm |
| Piston Diameter | 32 mm |
| Operating Pressure | 18–22 bar (260–320 psi) |
| OEM Reference | ZF 2094.140.005 |
| Thread Size | M12 x 1.5 |
Compatibility
This power lift is primarily designed for ZF WG180, WG200, and WG210 series transmissions used in construction machinery. It also fits select variants of the ZF 4WG-200 and 6WG-200 models. The unit interfaces directly with the 2094298054: HOUSING and is secured by the 2094301071: COVER. Always verify your transmission model’s serial number before ordering, as minor revisions exist between early and late production runs.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2094101018 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 2094301069 | HOUSING | Secondary housing for valve body support |
| 2094298054 | HOUSING | Lower housing for power lift mounting |
| 2094301071 | COVER | Seals the power lift chamber |
| 2094301030 | GASKET | Prevents fluid leakage between housings |
| 0750111371 | SHAFT SEAL | Rotary seal for output shaft |
| 0634303085 | O-RING | Static seal for hydraulic ports |
| 0631306670 | CYLINDRICAL PIN | Alignment dowel for precise assembly |
| 0636011356 | HEXAGON SCREW | Fastener for housing attachment |
| 4475280066 | SCREW PLUG | Seals unused hydraulic ports |
