ZF 6073.015.316 EST 37 A for WG210 | OEM Genuine Part

Overview

The ZF 6073.015.316 EST 37 A is a precision-engineered solenoid valve assembly specifically designed for the WG 210 series transmission. This OEM genuine part regulates hydraulic pressure within the valve body, controlling clutch pack engagement and shift timing. Positioned within the transmission’s electro-hydraulic control unit, the SKU 6073.015.316 ensures precise modulation of oil flow to maintain smooth gear transitions under heavy-duty loads. When paired with a properly sealed 4657101082: TRANSMISSION HOUSING, this component forms the critical interface between electronic controls and mechanical actuation in ZF drivetrains.

Symptoms of Failure

• Delayed or harsh shifting — A worn EST 37 A valve causes hesitation between gears, particularly when the transmission is cold, as internal spools stick due to contamination.
• Erratic pressure fluctuations — You may notice surging or slipping during acceleration, indicating the solenoid can no longer maintain consistent hydraulic force on clutch packs.
• Transmission fluid leaks at the valve body — Degraded O-rings on the 6073.015.316 allow ATF to seep past electrical connectors, leaving visible drips on the housing pan.
• Intermittent limp mode activation — The TCM detects abnormal resistance or short circuits in this solenoid, triggering a fail-safe state that limits speed to protect internal components.

Technical Specifications

Compatibility

This solenoid is engineered for the ZF WG 210 series, but its hydraulic characteristics also suit the WG 180 and WG 200 models when used in identical valve body configurations. It directly replaces units in WG 210 transmissions found in municipal trucks, refuse vehicles, and construction equipment. For proper installation, ensure the 4657201166: HOUS.FRONT SECT and 4657201170: HOUSING REAR PART are free of debris. The valve also interfaces with the 4657298102: HOUSING REAR SECTION in later production runs.

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