ZF 6073.015.018 EST 37 A for WG210 | OEM Genuine Part

Overview

The ZF 6073.015.018 EST 37 A for WG210 is an OEM genuine electronic shift element actuator, specifically engineered for the WG 210 series automatic transmissions. This precision component, identified by SKU 6073.015.018, governs hydraulic clutch modulation and gear selection within the valve body assembly. It interfaces directly with the transmission control unit to regulate pressure flow, ensuring smooth ratio changes under load. In the WG210 architecture, this part sits adjacent to the 4657101082: TRANSMISSION HOUSING and the 4657201166: HOUS.FRONT SECT, forming a critical link in the electro-hydraulic control circuit.

Symptoms of Failure

When the 6073.015.018 actuator degrades, operators typically encounter delayed engagement when shifting from neutral to drive, a common long-tail search query for WG210 diagnostics. Another prevalent symptom is intermittent gear slipping under moderate acceleration, often misdiagnosed as clutch pack wear. Technicians also report erratic shift timing with harsh upshifts during cold starts, which worsens as transmission fluid temperature rises. Finally, internal hydraulic pressure fluctuations can cause the transmission to enter limp-home mode, logging fault codes related to solenoid circuit integrity.

Technical Specifications

Compatibility

This genuine ZF part is designed primarily for the WG210 transmission series, but it also cross-fits select models in the WG180 and WG200 families where the EST 37 A valve body architecture is shared. Specific applications include ZF 6WG210, 5WG200, and 4WG180 variants used in municipal buses, construction loaders, and medium-duty trucks. When replacing this actuator, always inspect the 4657201170: HOUSING REAR PART and 4657298102: HOUSING REAR SECTION for scoring or wear, as these housings directly affect actuator alignment.

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