Overview
The ZF 6073.017.289 TCU ERGOPOWER M/L EC4A is a critical electronic control unit designed specifically for the WG 210 series transmission. This OEM genuine part governs shift logic, clutch modulation, and diagnostic communication within the ERGOPOWER M/L EC4A system. Positioned as the brain of the transmission, it interprets sensor data to optimize gear selection under varying load conditions. The SKU 6073.017.289 is a direct factory replacement, ensuring seamless integration with the transmission housing assembly. When paired with a properly sealed TRANSMISSION HOUSING, this TCU maintains hydraulic pressure stability and prevents contamination of internal circuits.
Symptoms of Failure
- Erratic gear shifting or delayed engagement: A failing TCU often causes harsh or unpredictable shifts, particularly when the transmission is under heavy load or operating at low temperatures.
- Intermittent loss of communication with diagnostic tools: The EC4A module may fail to transmit data, leading to fault codes that are difficult to clear or that reappear after resetting.
- Unintended transmission limp mode activation: If the TCU misreads sensor inputs from the HOUS.FRONT SECT or rear assembly, the system may default to a reduced power state to protect internal components.
- Oil temperature sensor anomalies: A degraded TCU can produce false high-temperature warnings, causing premature clutch wear or fluid degradation.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 6073.017.289 |
| OEM Reference | ZF ERGOPOWER M/L EC4A |
| Material | Die-cast aluminum housing with conformal-coated PCB |
| Weight | 1.2 kg (2.65 lbs) |
| Dimensions (L x W x H) | 210 mm x 140 mm x 45 mm |
| Operating Voltage | 12V / 24V DC (auto-sensing) |
| Connector Type | 40-pin AMP Junior Timer |
| Compatible Housing Parts | HOUSING REAR PART and HOUSING REAR SECTION |
Compatibility
This TCU is engineered for the ZF WG 210 series, but its control logic also supports select variants of the WG180 and WG200 transmissions when used with the correct software calibration. It directly interfaces with the TRANSMISSION HOUSING and requires proper grounding through the HOUS.FRONT SECT to avoid electrical noise. For retrofit applications, verify that the rear housing assembly—either the HOUSING REAR PART or HOUSING REAR SECTION—matches the TCU mounting flange pattern. This unit is not compatible with pre-2005 WG series transmissions without adapter harnesses.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101085 | TRANSMISSION HOUSING | Main structural casing for gear train and valve body |
| 4657201161 | HOUS.FRONT SECT | Front section housing for torque converter and pump |
| 4657201162 | HOUSING REAR PART | Rear casing section supporting output shaft and PTO |
| 4657298107 | HOUSING REAR SECTION | Alternate rear housing variant for extended tail configurations |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing-to-TCU mating surfaces |
| 0636100801 | CAP SCREW | M10 fastener for securing TCU bracket to housing |
| 4656301148 | FIXING PLATE | Steel plate for reinforcing TCU mounting points |
| 4657301032 | SCREEN SHEET | Fine mesh filter for hydraulic oil return line |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter for suction side of pump |
| 0636100803 | CAP SCREW | M8 fastener for screen sheet retention |
