Overview
The ZF 6009.047.938 CONTROL UNIT is a precision electronic assembly designed specifically for the WG201 series powershift transmission. This OEM genuine part governs hydraulic valve actuation, modulating clutch engagement and shift timing within the transmission’s valve body. As the central command interface between the vehicle’s drivetrain controller and the transmission’s internal hydraulics, the control unit ensures smooth gear changes under load. The SKU 6009.047.938 is manufactured to ZF’s original specifications, guaranteeing direct fitment and reliable performance in heavy-duty off-highway and industrial applications.
Symptoms of Failure
- Erratic or delayed gear engagement – When the control unit fails, operators often report a noticeable lag between selecting a gear and the transmission actually engaging, especially when shifting from neutral to drive or reverse.
- Intermittent transmission slipping – A worn control unit can cause inconsistent hydraulic pressure, leading to clutch slip under load. This symptom is frequently searched as “ZF WG201 transmission slipping under load.”
- No shift or stuck in gear – Complete loss of shift function is a critical failure mode. The transmission may remain locked in one gear or refuse to shift out of neutral, often accompanied by a diagnostic fault code.
- Oil contamination from internal short – In severe cases, electrical failure within the control unit can introduce metallic debris into the hydraulic circuit, accelerating wear on adjacent components like the TRANSMISSION HOUSING 4644301323.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 6009.047.938 |
| OEM Reference | ZF 6009 047 938 |
| Material | Die-cast aluminum housing with sealed electronics |
| Weight | 1.2 kg (2.65 lbs) |
| Dimensions (L x W x H) | 180 mm x 120 mm x 45 mm |
| Operating Voltage | 12V / 24V DC |
| Connector Type | Deutsch DT series, 12-pin |
| Seal Kit Included | O-RING 0634306198 (sold separately) |
Compatibility
This control unit is engineered for the ZF WG201 series transmission family. Based on its design and hydraulic interface, it is compatible with the following ZF models: WG180, WG200, WG201, and WG210. It is commonly used in mobile cranes, forklifts, and wheel loaders where precise shift modulation is required. Always verify the transmission serial number before installation, as variations exist between early and late production runs. The unit mounts directly to the TRANSMISSION HOUSING 4644101160 and interfaces with the THREADED BUSH 4644301189 for secure fastening.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4644101160 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4644301323 | TRANSMISSION HOUSING | Alternate housing variant for WG201 |
| 4644301189 | THREADED BUSH | Mounting insert for control unit bolts |
| 4475280043 | SCREW PLUG | Seals hydraulic test ports |
| 0634306198 | O-RING | Seals control unit to housing |
| 0730365067 | TYPE PLATE | Identification label for transmission |
| 4644301161 | COVER PLATE | Protects valve body access |
| 0636100621 | HEXAGON SCREW | Fastener for cover plate |
| 0631610020 | SET SCREW | Adjustment screw for shift linkage |
| 0501218540 | BREATHER | Vents transmission pressure |
ZF 6009.047.938 CONTROL UNIT – Control Unit RFQ Support
PartsZF supports RFQ review for ZF 6009.047.938 CONTROL UNIT in transmission control-system sourcing. The key step is confirming the part number against the machine or removed-unit evidence.
Part-Number Summary
Use ZF number 6009.047.938 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Illustration section: LOOSE PARTS
Cross Reference Support
If you have an OEM number, old supplier number, or visible marking, include it with your RFQ so PartsZF can compare it with the available records.
Specification Snapshot
| ZF part number | 6009.047.938 |
|---|---|
| Normalized SKU | 6009047938 |
| Part name | CONTROL UNIT |
| Product category | control unit |
| RFQ support | Part-number lookup and documentation review |
| Media support | Product photo or diagram review when available |
Image and Documentation Notes
Current product media status: fallback. Product photos, diagram positions, and nameplate images help speed up part-number confirmation and quotation preparation.
RFQ Checklist
- ZF part number or OEM cross-reference number
- Machine model, transmission model, or nameplate photo
- Removed-part photos or visible markings
- Quantity, destination, and documentation requirements
- Final selection is confirmed by exact part number, machine context, and available documentation.
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