ZF 6073.015.549 EST 37 A for WG210 | OEM Genuine Part

Overview

The ZF 6073.015.549 EST 37 A for WG210 is a critical electro-hydraulic control unit that manages clutch pressure and shift timing within the WG 210 series transmission. This OEM genuine part, identified by SKU 6073.015.549, sits directly on the valve body assembly and regulates oil flow to the planetary gear sets. It interfaces with the 4657101082: TRANSMISSION HOUSING to ensure precise gear engagement under load. Without this component, the transmission cannot modulate hydraulic pressure for smooth shifting.

Symptoms of Failure

• Erratic or delayed shifting under load: When the EST 37 A wears, you may notice hesitation or harsh engagement when accelerating, especially in WG210-equipped vehicles.
• Intermittent loss of forward or reverse gears: A failing unit can cause temporary gear dropouts, often misdiagnosed as a solenoid issue.
• Oil contamination in the valve body area: Internal seal degradation leads to fine metallic debris circulating through the 4657201166: HOUS.FRONT SECT and 4657201170: HOUSING REAR PART.
• High-frequency whine during gear changes: Worn spool valves inside the 6073.015.549 produce audible noise as hydraulic pressure fluctuates.

Technical Specifications

Compatibility

This part is engineered for the ZF WG 210 series, but it also fits WG180, WG200, and WG250 models due to shared valve body architecture. It is not compatible with Ecomat or Ecolife series transmissions. Always verify that the 4657298102: HOUSING REAR SECTION matches your unit’s bolt pattern before installation.

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