Overview
The ZF 2094.140.006 POWER LIFT is a critical hydraulic actuation component engineered for ZF heavy-duty powershift transmissions used in construction machinery. This OEM genuine part controls the lifting and lowering functions of the power take-off (PTO) assembly, directly managing hydraulic pressure to engage or disengage auxiliary equipment. Positioned within the transmission valve body, the POWER LIFT (SKU: 2094.140.006) works in tandem with the 2094101017: TRANSMISSION HOUSING to ensure precise oil flow regulation. When this unit fails, the entire drivetrain’s ability to transfer power to hydraulic pumps or winches is compromised, making it a high-priority replacement part for maintaining machine uptime.
Symptoms of Failure
- Intermittent or complete loss of PTO engagement: When the 2094.140.006 wears internally, the transmission fails to maintain hydraulic pressure, causing the PTO to slip or disengage under load. This is often reported as “ZF transmission won’t lift load” in field diagnostics.
- Hydraulic oil leaks around the valve body: Degraded seals within the POWER LIFT unit allow transmission fluid to escape, leaving puddles under the chassis. Look for wetness near the 2094301069: HOUSING interface.
- Erratic lifting speed or jerky operation: Worn internal spools cause uneven hydraulic flow, resulting in slow or sudden movements of the attached implement. Operators may notice “transmission surging during PTO use.”
- Unusual noise from the transmission area: Cavitation or metal-on-metal contact inside the POWER LIFT produces a whining or grinding sound, especially when the system is under heavy load.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2094.140.006 |
| Type | POWER LIFT (Hydraulic Control Valve) |
| Material | High-strength aluminum alloy with steel spool |
| Weight | 1.85 kg (4.08 lbs) |
| Dimensions (L x W x H) | 145 mm x 80 mm x 65 mm |
| OEM Reference | ZF 2094.140.006 |
| Operating Pressure | 18–22 bar (261–319 psi) |
| Seal Material | NBR (Nitrile Butadiene Rubber) |
Compatibility
This POWER LIFT unit is designed for ZF WG series transmissions commonly installed in wheel loaders, telehandlers, and excavators. It is a direct fit for the WG180, WG200, and WG211 models. The 2094.140.006 also integrates with the 2094298054: HOUSING in these assemblies. For proper sealing during installation, always pair this part with a new 0636302008: SCREW PLUG to prevent pressure loss at the port connections.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2094101017 | TRANSMISSION HOUSING | Main structural casing for gear and valve assembly |
| 2094301069 | HOUSING | Secondary housing for hydraulic control circuits |
| 2094298054 | HOUSING | Mounting bracket for PTO actuator components |
| 0636302008 | SCREW PLUG | Seals hydraulic ports against leakage |
| 0634801165 | SEALING RING | Provides leak-proof joint between valve and housing |
| 0635460022 | BALL | Check valve ball for directional flow control |
| 2094301071 | COVER | Protects internal valve spools from debris |
| 2094301030 | GASKET | Compression seal between mating surfaces |
| 0750111371 | SHAFT SEAL | Prevents oil migration along rotating shafts |
| 0634303085 | O-RING | Static seal for hydraulic line connections |
