Overview
The ZF 4661.106.013 CONTROL UNIT is a critical electro-hydraulic interface module designed exclusively for the WG 94 Series transmission family. This OEM genuine part governs shift timing, pressure modulation, and clutch engagement sequences by processing electronic signals from the transmission control module and converting them into precise hydraulic actions. Mounted directly onto the valve body assembly, the 4661.106.013 unit integrates seamlessly with the 4661101024: TRANSMISSION HOUSING and the 4661301054: HOUSING II to form the central control core of the transmission. The SKU 4661.106.013 is laser-etched on the unit for quick identification during rebuilds or replacements.
Symptoms of Failure
- Erratic shift hunting under load: When the control unit degrades, the transmission may randomly upshift or downshift during highway cruising, causing unsafe RPM fluctuations.
- Delayed engagement from Neutral to Drive: A worn 4661.106.013 often produces a 3-5 second lag before gear engagement, accompanied by a harsh clunk.
- Intermittent loss of reverse gear: Internal solenoid failure within the control unit can cause reverse to drop out entirely, requiring a full system restart to regain function.
- Transmission fluid contamination from internal debris: As the unit’s seals degrade, metallic particles can enter the hydraulic circuit, accelerating wear on the 0631306174: CYLINDRICAL PIN and valve bores.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4661.106.013 |
| OEM Reference | ZF 4661.106.013 |
| Material | Die-cast aluminum alloy with stainless steel solenoid cores |
| Weight | 2.8 kg (6.2 lbs) |
| Dimensions (L x W x H) | 245 mm x 180 mm x 95 mm |
| Operating Pressure Range | 8-22 bar |
| Temperature Range | -40°C to +120°C |
| Mounting Torque | 25 Nm (M8 bolts) |
Compatibility
This control unit is engineered for the ZF WG94 series, which includes the WG94, WG120, WG150, WG180, and WG200 transmission models. It is also backward-compatible with certain WG80 variants when used with the correct 0769123894: TYPE PLATE for identification. The unit directly interfaces with the main valve body and requires no adapter plates for installation on WG94 platforms. Always verify the production date stamp on the housing before ordering, as pre-2010 units may require a firmware update.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4661101024 | TRANSMISSION HOUSING | Main structural casing for gear train and valve body |
| 4661301054 | HOUSING II | Secondary housing for control unit mounting |
| 0631306174 | CYLINDRICAL PIN | Alignment dowel for precise housing positioning |
| 0769123894 | TYPE PLATE | Identification tag with transmission serial and model |
| 0750100022 | SCREW PLUG | Seals hydraulic test ports on valve body |
| 4660201008 | SCREW PLUG | M18 plug for oil gallery access |
| 0636100117 | SCREW PLUG | M10 plug for pressure sensor port |
| 0501211384 | VALVE | Pressure relief valve for clutch circuit |
| 0732042156 | COMPRESSION SPRING | Returns valve spool to neutral position |
| 0768409154 | SCREW PLUG | M12 plug for accumulator housing |
ZF 4661.106.013 CONTROL UNIT – Control Unit RFQ Support
ZF 4661.106.013 CONTROL UNIT is treated as a control-system part-number lookup item. Send visible markings, machine details, and documentation needs for RFQ review.
Part-Number Summary
Use ZF number 4661.106.013 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 | 4661.106.013 |
|---|---|
| Normalized SKU | 4661106013 |
| 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.
Related Parts
- ZF 4660.106.031 CONTROL UNIT
- ZF 4660.106.024 CONTROL UNIT
- ZF 4661.106.032 CONTROL UNIT
- ZF 4661.106.014 CONTROL UNIT
- ZF 4660.106.013 CONTROL UNIT
