Overview
The ZF 6073.017.171 TCU ERGOPOWER M/L EC4A is a critical electronic control unit designed specifically for the WG210 series transmission. This OEM genuine part manages shift timing, clutch pressure modulation, and diagnostic communication within the ERGOPOWER M/L EC4A system. Positioned on the valve body assembly, the TCU interprets sensor inputs to optimize gear engagement and torque converter lockup. The SKU 6073.017.171 ensures direct replacement without reprogramming, maintaining factory performance standards for heavy-duty commercial vehicles.
Symptoms of Failure
- Erratic shifting or gear hunting – When the TCU fails, the transmission may skip gears or struggle to find the correct ratio, especially under load.
- Delayed engagement – A worn TCU can cause a noticeable pause between selecting Drive and actual movement, often accompanied by a harsh clunk.
- Transmission warning light activation – Faulty communication from the 6073.017.171 triggers dashboard alerts and stored diagnostic trouble codes (DTCs).
- Intermittent limp mode – The system may default to a single gear to protect internal components, reducing vehicle speed to 30-40 km/h.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 6073.017.171 |
| Type | TCU ERGOPOWER M/L EC4A |
| Dimensions (L x W x H) | 210 mm x 140 mm x 45 mm |
| Material | Die-cast aluminum housing with sealed electronics |
| Weight | 1.2 kg (2.65 lbs) |
| OEM Reference | ZF 6073.017.171 |
| Operating Voltage | 12V DC (24V compatible with adapter) |
| Connector Type | 54-pin AMP |
Compatibility
This TCU is engineered for the WG210 series but also fits select ZF transmissions including the WG180, WG200, and WG211 models. It is commonly used in ERGOPOWER M/L EC4A applications for municipal trucks, refuse vehicles, and construction equipment. Always verify the transmission serial number before installation to ensure correct firmware matching.
During replacement, inspect the HOUS.FRONT SECT (4657201161) for cracks or wear, as this housing supports the TCU mounting bracket. Secure the unit using 螺栓 (0636115293) to prevent vibration loosening. Replace the O-RING (0634313603) on the hydraulic connector to avoid fluid ingress, and align the assembly with a CYLINDRICAL PIN (0631306816) for precise positioning.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657201161 | HOUS.FRONT SECT | Front housing section for TCU mounting |
| 0636115293 | 螺栓 | Mounting bolt for TCU bracket |
| 0634313603 | O-RING | Hydraulic seal for TCU connector |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for valve body |
| 0636100801 | CAP SCREW | Fastener for housing cover |
| 4656301148 | FIXING PLATE | Retaining plate for wiring harness |
| 4657301032 | SCREEN SHEET | Filter screen for oil circuit |
| 4657301033 | SCREEN SHEET | Secondary filter screen |
| 0636100803 | CAP SCREW | Bolt for screen sheet retention |
| 4656301047 | OIL FEED.HOUSG. | Oil feed housing for lubrication |
