ZF 6073.015.101 EST 37 A for WG210 | OEM Genuine Part

Overview

The ZF 6073.015.101 EST 37 A for WG210 is a critical electro-hydraulic control unit that governs clutch engagement and shift timing within the WG 210 series transmission. Positioned on the valve body assembly, this OEM genuine part (SKU: 6073.015.101) modulates hydraulic pressure to ensure smooth gear transitions under heavy load. It interfaces directly with the TRANSMISSION HOUSING and works in concert with the HOUS.FRONT SECT to maintain precise oil flow. Without this component, the transmission cannot execute commanded shifts, making it essential for driveline reliability in construction and agricultural machinery.

Symptoms of Failure

• Erratic or delayed shifting under load: When the EST 37 A solenoid wears, hydraulic pressure drops, causing hesitation between gears—a common issue in WG210 units operating in high-torque applications.
• Transmission oil leaks near the valve body: Degraded seals on the 6073.015.101 allow ATF to seep past, often pooling around the HOUSING REAR PART interface.
• Intermittent loss of forward or reverse gears: Internal electrical faults in the EST 37 A can trigger partial clutch disengagement, leaving the transmission in neutral unexpectedly.
• Harsh engagement with audible clunking: A failing solenoid fails to modulate pressure gradually, resulting in jarring shifts that stress the HOUSING REAR SECTION.

Technical Specifications

Compatibility

This OEM genuine part is engineered for the ZF WG 210 series, but its mounting pattern and hydraulic flow characteristics also suit the WG180 and WG200 models when used with the correct valve body adapter. It is not compatible with WG120 or WG150 units due to differing port configurations. For proper installation, always pair the 6073.015.101 with the TRANSMISSION HOUSING and verify alignment with the HOUS.FRONT SECT to prevent cross-threading.

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