Overview
The ZF 6057.018.330 CONTROL UNIT is a critical electronic-hydraulic interface module designed exclusively for the WG211 series powershift transmission. This OEM genuine part governs clutch engagement timing and pressure modulation, ensuring smooth directional shifts under heavy load conditions. Positioned within the valve body assembly, the control unit (SKU 6057.018.330) receives electrical signals from the transmission control module and converts them into precise hydraulic commands. When operating correctly, it maintains consistent shift quality across all forward and reverse ranges. For optimal hydraulic circuit performance, this unit works in tandem with the 4657120005: PRESSURE REGULATOR to stabilize system pressure during torque converter lockup.
Symptoms of Failure
- Erratic shift timing or gear hunting – A failing control unit causes delayed or premature shifts, particularly when the transmission is cold. Operators may notice the WG211 hunting between gears on mild inclines.
- Intermittent loss of forward or reverse – Internal solenoid degradation leads to complete loss of a specific gear range, often accompanied by a flashing warning lamp on the dash.
- Harsh engagement with audible clunk – Worn control logic results in abrupt clutch pack application, producing a metallic clunk during direction changes. This symptom worsens when the 0501211384: VALVE is also sticking.
- Transmission fluid contamination from internal wear – Debris from a deteriorating control unit can migrate into the sump, causing erratic pressure readings and accelerated wear on the 0630532183: INDENTED RING sealing surfaces.
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 6057.018.330 |
| Material | Die-cast aluminum housing with stainless steel solenoid cores |
| Weight | 1.85 kg (4.08 lbs) |
| Dimensions (L x W x H) | 210 mm x 140 mm x 65 mm |
| Operating Voltage | 12V DC / 24V DC (dual-range) |
| Hydraulic Ports | 6 (4x M10, 2x M12) |
| Seal Type | NBR O-rings (included) |
| OEM Reference | ZF 6057.018.330 (genuine) |
Compatibility
This control unit is engineered for the ZF WG211 series, but cross-referencing indicates functional interchangeability with select WG180 and WG200 variants that share the same valve body footprint. Specifically, it fits WG211 models produced after 2015 with serial numbers beginning “6057.” For earlier WG200 transmissions, verify the hydraulic port alignment before installation. The unit integrates directly with the 4656306145: PISTON assembly to modulate clutch apply pressure. Always consult your transmission’s parts manual to confirm compatibility with your specific housing configuration.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657120005 | PRESSURE REGULATOR | Maintains stable hydraulic pressure across all operating temperatures |
| 0501211384 | VALVE | Directs oil flow to clutch packs based on control unit signals |
| 0630532183 | INDENTED RING | Provides sealing surface for piston return springs |
| 4656306145 | PISTON | Converts hydraulic pressure into mechanical clutch engagement force |
| 0732042767 | COMPRESSION SPRING | Returns piston to neutral position when pressure is released |
| 0631612064 | SET SCREW | Secures valve body alignment during assembly |
| 0631610026 | SET SCREW | Adjusts shift timing calibration on older WG200 models |
| 4657101049 | TRANSMISSION HOUSING | Main structural casing for the entire gear train |
| 4657301130 | HOUS.FRONT SECT | Front section housing the torque converter and pump |
| 4657301131 | HOUSING REAR PART | Rear section enclosing the output shaft and PTO drive |
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