Overview
The ZF 6009.092.708 CONTROL UNIT is the electronic brain governing shift logic and pressure modulation within the WG210 series transmission. Positioned on the valve body assembly, this OEM genuine part processes input from speed sensors and throttle position to execute precise clutch engagements. The SKU 6009.092.708 replaces worn or shorted units that compromise drivability. When paired with a robust TRANSMISSION HOUSING, the control unit ensures hydraulic circuits receive correct commands under all load conditions.
Symptoms of Failure
- Erratic shifting or gear hunting – The transmission fails to hold a selected gear, especially during uphill climbs, due to degraded solenoid drivers inside the 6009.092.708.
- Delayed engagement from Park to Drive – A worn control unit causes a 2-3 second lag before the transmission responds, often accompanied by a harsh clunk.
- Intermittent limp mode activation – The system locks in second gear when the control unit misreads internal resistance values, triggering fault codes P0700 or P0740.
- Oil contamination in the connector harness – Capillary action draws fluid into the unit’s pins, leading to corrosion and short circuits that mimic mechanical failures.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 6009.092.708 |
| OEM Reference | ZF 6009.092.708 |
| Material | Glass-filled nylon housing, copper alloy contacts |
| Weight | 0.85 kg (1.87 lbs) |
| Dimensions (L×W×H) | 210 mm × 140 mm × 55 mm |
| Operating Voltage | 12V DC (10-16V range) |
| Sealing Type | Integrated O-ring with vent membrane |
Compatibility
This control unit is engineered for the ZF WG210 series, but it also fits select WG180, WG200, and WG250 variants that share the same valve body bolt pattern. Always verify the transmission tag before installation. The unit interfaces directly with the HOUS.FRONT SECT and the HOUSING REAR PART to form a sealed electronic enclosure. A CYLINDRICAL PIN aligns the control unit to the valve body during assembly, preventing misalignment that could shear connector terminals.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101039 | TRANSMISSION HOUSING | Main structural case enclosing gear sets and valve body |
| 4657201028 | HOUS.FRONT SECT | Front section housing torque converter and pump |
| 4657201013 | HOUSING REAR PART | Rear section supporting output shaft and governor |
| 0631306792 | CYLINDRICAL PIN | Alignment dowel for control unit mounting |
| 0636100801 | CAP SCREW | M8 bolt securing control unit to valve body |
| 4656301148 | FIXING PLATE | Retainer for harness connector strain relief |
| 4657301034 | SCREEN SHEET | Fine mesh filter for valve body oil gallery |
| 4657301035 | SCREEN SHEET | Coarse mesh pre-filter for sump pickup |
| 0636100803 | CAP SCREW | M6 bolt for housing section fastening |
| 4681301040 | OIL FEED.HOUSG. | Pressurized oil supply tube to clutch packs |
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