ZF 6009.047.420 CONTROL UNIT for WG200 | OEM Genuine Part

Overview

The ZF 6009.047.420 CONTROL UNIT is a critical electronic module responsible for managing hydraulic pressure modulation and shift timing within the WG200 transmission series. Positioned on the valve body assembly, this OEM genuine part interprets input from the vehicle’s ECU to execute precise gear engagements. The SKU 6009.047.420 directly replaces the original factory-installed unit, ensuring that shift quality and torque converter lockup remain within ZF’s stringent tolerances. When paired with a properly sealed TRANSMISSION HOUSING (4644101249) and a robust TRANSMISSION HOUSING (4644301402), this control unit forms the electronic backbone of the entire gearbox.

Symptoms of Failure

• Erratic or delayed shifting: A worn 6009.047.420 often causes the transmission to hesitate before engaging gears, particularly during upshifts from 2nd to 3rd.
• Intermittent limp mode activation: Faulty internal solenoids trigger diagnostic trouble codes, forcing the WG200 into a reduced-power safety mode.
• Harsh engagement or flare: When the control unit loses calibration, gear engagement becomes jarring, or the transmission slips between shifts under load.
• Oil contamination in the connector: Leaking internal seals allow transmission fluid to migrate into the wiring harness, causing short circuits and intermittent electrical faults.

Technical Specifications

Compatibility

This control unit is engineered specifically for ZF’s WG series powershift transmissions. It is a direct fit for the WG200 and WG180 models, commonly found in medium-duty trucks, buses, and construction equipment. The unit also integrates with the WG210 variant when used with the correct COVER PLATE (4644301298). Always verify the transmission serial number against the OEM parts catalog before ordering.

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