Overview
The ZF 6009.055.041 CONTROL UNIT is a precision electronic module designed specifically for the WG 100 series of automatic transmissions. This OEM genuine part governs hydraulic pressure modulation and shift timing within the valve body assembly. By interpreting input from the transmission control module, it directs solenoid actuation to ensure smooth gear engagement under varying load conditions. The SKU 6009.055.041 replaces worn or failed units to restore factory shift quality and prevent driveline damage. It interfaces directly with the TRANSMISSION HOUSING and the HOUSING to maintain sealed hydraulic circuits.
Symptoms of Failure
- Erratic shifting or gear hunting: When the control unit degrades, the transmission may struggle to find the correct gear, especially during uphill climbs or under heavy payloads. This symptom often appears as “ZF WG100 erratic shifting” in diagnostic searches.
- Delayed engagement from Park to Drive: A worn 6009.055.041 unit can cause a 2-3 second lag when selecting Drive or Reverse, accompanied by a harsh clunk. This is a common “ZF transmission delayed engagement” complaint.
- Transmission slipping under load: If the control unit fails to maintain proper line pressure, the transmission may slip between gears, leading to RPM flare without corresponding acceleration. This is frequently reported as “WG100 transmission slipping.”
- Intermittent limp mode activation: The control unit may trigger a fault code and force the transmission into a single gear (limp mode) to prevent catastrophic failure. This often occurs after the unit overheats from prolonged operation.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 6009.055.041 |
| OEM Reference | ZF 6009.055.041 |
| Material | Glass-filled nylon housing with aluminum heat sink |
| Weight | 0.85 kg (1.87 lbs) |
| Dimensions (L x W x H) | 180 mm x 120 mm x 45 mm |
| Operating Voltage | 12V DC (nominal) |
| Operating Temperature Range | -40°C to +125°C |
| Sealing Interface | Requires O-RING for hydraulic port isolation |
Compatibility
This control unit is engineered for the ZF WG 100 series, including models such as WG180, WG200, and WG210. It is also compatible with select WG150 variants that share the same valve body architecture. The unit mounts directly onto the HOUSING and requires proper torque sequencing during installation. Always verify your transmission serial number against the OEM parts catalog before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4651101007 | TRANSMISSION HOUSING | Main structural casing for gear train and valve body |
| 4651301029 | HOUSING | Secondary housing for clutch pack and piston assembly |
| 0634303928 | O-RING | Seals hydraulic passages between control unit and housing |
| 4651301024 | HOUSING | Lower valve body housing for shift solenoids |
| 4651203002 | SCREEN SHEET | Filters debris from hydraulic fluid before entering control unit |
| 4651303005 | SCREEN SHEET | Secondary filtration for high-pressure oil circuits |
| 0636101032 | CAP SCREW | Fastens control unit to transmission housing |
| 0630361028 | SEALING CAP | Protects unused hydraulic ports from contamination |
| 4475280060 | SCREW PLUG | Seals pressure test ports in the valve body |
| 0634303312 | O-RING | Gasket for screw plug and sealing cap interfaces |
ZF 6009.055.041 CONTROL UNIT – Control Unit RFQ Support
ZF 6009.055.041 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 6009.055.041 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 | 6009.055.041 |
|---|---|
| Normalized SKU | 6009055041 |
| 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 4661.106.013 CONTROL UNIT
- ZF 4660.106.024 CONTROL UNIT
- ZF 4661.106.032 CONTROL UNIT
- ZF 4661.106.014 CONTROL UNIT
