ZF 6057.018.828 EST 37 A for WG210 | OEM Genuine Part

Overview

The ZF 6057.018.828 EST 37 A for WG210 is a critical electronic solenoid control unit that modulates hydraulic pressure within the transmission valve body. This OEM genuine part governs shift timing and clutch engagement in the WG210 series, ensuring precise gear changes under heavy load. The SKU 6057.018.828 is a direct-fit replacement designed to restore factory performance. It interfaces directly with the 4657101082: TRANSMISSION HOUSING and the 4657201166: HOUS.FRONT SECT, forming the core of the electro-hydraulic control system.

Symptoms of Failure

• Erratic or delayed gear engagement: Worn internal seals cause pressure loss, leading to harsh or delayed shifts when accelerating from a stop.
• Transmission slipping under load: The EST 37 A fails to maintain clutch pack pressure, resulting in RPM flare without corresponding vehicle speed increase.
• Intermittent limp mode activation: Faulty solenoid resistance triggers diagnostic trouble codes, forcing the transmission into a safe, low-gear mode.
• Oil contamination from internal wear: Degraded valve spools shed metallic particles into the fluid, visible as dark, gritty oil on the dipstick.

Technical Specifications

Compatibility

This EST 37 A solenoid assembly is engineered for the ZF WG210 series, but it also fits WG180, WG200, and WG211 models due to shared valve body architecture. It is not compatible with Ecomat or AS Tronic variants. Always verify the 4657201170: HOUSING REAR PART and 4657298102: HOUSING REAR SECTION for correct alignment during installation.

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