ZF 6073.003.073 CONTROL UNIT for WG94 | OEM Genuine Part

Overview

The ZF 6073.003.073 CONTROL UNIT is a precision electronic assembly designed specifically for the WG94 series of powershift transmissions. This OEM genuine part governs hydraulic pressure modulation and shift timing, ensuring smooth clutch engagement and reliable gear changes under heavy load. Positioned within the valve body section of the transmission, the control unit interfaces directly with the main TRANSMISSION HOUSING to regulate oil flow to the clutches. The SKU 6073.003.073 is factory-calibrated to ZF specifications, making it a direct replacement for failed units in WG94 applications.

Symptoms of Failure

• Erratic shifting or gear hunting – A worn control unit causes inconsistent pressure signals, leading to delayed or harsh shifts, especially when the transmission is hot.
• Transmission slipping under load – If the unit fails to maintain proper clutch pressure, the transmission may slip during acceleration or on inclines, reducing torque delivery.
• No forward or reverse engagement – Complete electronic failure of the control unit can prevent the valve body from directing oil, resulting in a loss of drive.
• Check engine or transmission warning lights – Internal circuit faults trigger diagnostic trouble codes, often accompanied by a limp-home mode.

Technical Specifications

Compatibility

This control unit is engineered for the ZF WG94 transmission series, which includes models such as WG94, WG98, and WG100. It is also compatible with select WG120 and WG150 variants that share the same valve body architecture. The unit mounts directly to the HOUSING II and is secured with a CYLINDRICAL PIN for alignment. Always verify your transmission model and serial number against the OEM parts list before installation. The TYPE PLATE on the transmission housing provides the exact model designation for cross-referencing.

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