Overview
The ZF 4661.106.014 CONTROL UNIT is a critical electronic-hydraulic interface module designed exclusively for the WG 94 series powershift transmissions. This OEM genuine part governs shift timing, clutch modulation, and pressure regulation within the valve body assembly. By processing input signals from the transmission control module, the 4661.106.014 ensures precise gear engagement under varying load conditions. The unit integrates directly with the 4661101022: TRANSMISSION HOUSING and mounts adjacent to the 4661301050: HOUSING II, forming the core of the hydraulic control network. When functioning correctly, this control unit delivers smooth, repeatable shifts essential for heavy-duty industrial applications.
Symptoms of Failure
- Erratic or delayed gear engagement: A worn 4661.106.014 often causes hesitation when shifting from neutral to drive or reverse, particularly under load. This symptom is frequently searched as “ZF WG94 transmission slow engagement.”
- Intermittent transmission slipping: When the control unit fails to maintain proper clutch pressure, operators report sudden RPM flares without corresponding acceleration—a classic sign of internal hydraulic misregulation.
- Harsh or clunking shifts: Degraded solenoid response within the control unit produces jarring gear changes. Technicians searching for “ZF transmission hard shift fix” commonly trace this issue to the 4661.106.014.
- Transmission fault codes P0700-P0799: The unit’s internal circuit board can develop intermittent shorts, triggering diagnostic trouble codes related to shift solenoid performance or pressure control.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number / SKU | 4661.106.014 |
| OEM Reference | ZF 4661.106.014 |
| Material | Die-cast aluminum housing with integrated solenoid valves |
| Weight | 2.4 kg (5.3 lbs) |
| Dimensions (L x W x H) | 210 mm x 140 mm x 95 mm |
| Operating Pressure Range | 12–18 bar (174–261 psi) |
| Connector Type | Deutsch DT04-6P |
| Seal Material | Nitrile rubber (NBR) |
Compatibility
This control unit is engineered for the ZF WG94 series, which includes the WG94-2, WG94-3, and WG94-4 variants. It is also compatible with the WG180, WG200, and WG211 transmission models that share the same hydraulic control architecture. The 4661.106.014 interfaces directly with the 4661301093: TUBE for fluid routing and is secured using the 0631306174: CYLINDRICAL PIN for precise alignment. Always verify your transmission serial number against ZF application charts before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4661101022 | TRANSMISSION HOUSING | Main structural casing for gear train and valve body |
| 4661301050 | HOUSING II | Secondary housing supporting control unit and solenoids |
| 4661301093 | TUBE | Hydraulic fluid passage between valve body and clutch packs |
| 0631306174 | CYLINDRICAL PIN | Alignment dowel for control unit mounting |
| 0769123894 | TYPE PLATE | Identification label with transmission serial number |
| 0750100022 | SCREW PLUG | Seals pressure test ports on valve body |
| 0636302602 | SCREW PLUG | Drain plug for hydraulic circuit |
| 0634100633 | O-RING | Seals control unit to housing interface |
| 4661301029 | NOZZLE | Calibrated orifice for clutch feed pressure |
| 4661301027 | NOZZLE | Secondary orifice for lubrication circuit |
ZF 4661.106.014 CONTROL UNIT – Control Unit RFQ Support
PartsZF supports RFQ review for ZF 4661.106.014 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 4661.106.014 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Illustration section: WG 94
- Illustration section: CONTROL UNIT
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 | 4661.106.014 |
|---|---|
| Normalized SKU | 4661106014 |
| 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: diagram. 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.
Related Parts
- ZF 4660.106.031 CONTROL UNIT
- ZF 4661.106.013 CONTROL UNIT
- ZF 4660.106.024 CONTROL UNIT
- ZF 4661.106.032 CONTROL UNIT
- ZF 4660.106.013 CONTROL UNIT
