ZF 6057.018.914 EST 37 A for WG190 | OEM Genuine Part

Overview

The ZF 6057.018.914 EST 37 A is a genuine OEM solenoid valve assembly engineered specifically for the WG 190 series transmission. This critical electro-hydraulic component modulates clutch pressure and shift timing within the valve body, ensuring precise gear engagement under heavy-duty loads. As a direct replacement for part number SKU 6057.018.914, it restores factory-specified shift quality and prevents erratic transmission behavior. This part integrates directly with the 4657101082: TRANSMISSION HOUSING to maintain sealed hydraulic circuits.

Symptoms of Failure

• Delayed or harsh shifting: Worn internal seals cause pressure loss, resulting in sluggish upshifts or jarring downshifts, especially under load.
• Intermittent gear slippage: A failing EST 37 A may allow clutch packs to slip during acceleration, producing a temporary loss of torque transfer.
• Transmission overheating: Erratic solenoid operation forces the torque converter to work harder, raising fluid temperatures beyond normal operating ranges.
• Check engine or transmission warning lights: Modern control modules detect solenoid circuit faults, triggering dashboard alerts and limp-home mode.

Technical Specifications

Compatibility

This solenoid is primarily designed for the ZF WG 190 series, but it also fits WG 180, WG 200, and WG 210 transmissions due to shared valve body architecture. It is a direct swap for units requiring the EST 37 A control valve. For full assembly integrity, always pair this part with the 4657201166: HOUS.FRONT SECT and the 4657201170: HOUSING REAR PART to prevent misalignment. The 4657298102: HOUSING REAR SECTION also shares mounting points with this solenoid assembly.

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