ZF 4657.131.019 FILLER NOZZLE for WG210 | OEM Genuine Part

Overview

The ZF 4657.131.019 FILLER NOZZLE is a precision-engineered fluid delivery component designed exclusively for the WG 210 series transmission. This OEM genuine part controls the precise flow and direction of transmission oil during filling and circulation, ensuring optimal lubrication and cooling within the gearbox. Positioned at the upper section of the main casing, the filler nozzle interfaces directly with the TRANSMISSION HOUSING to channel fluid without turbulence. The SKU 4657.131.019 is manufactured to ZF’s exacting tolerances, guaranteeing a leak-free seal and consistent hydraulic performance throughout the transmission’s service life.

Symptoms of Failure

• Transmission oil pooling under the vehicle – A cracked or warped filler nozzle often causes slow, persistent fluid leaks near the housing interface, especially after cold starts.
• Erratic gear engagement or delayed shifting – Insufficient fluid delivery from a clogged nozzle reduces hydraulic pressure, leading to hesitant or rough gear changes during acceleration.
• Whining or groaning noise from the transmission – Starvation of lubricant due to a restricted filler nozzle creates metal-on-metal friction, producing audible whining sounds at highway speeds.
• Overheating transmission fluid – A failing nozzle disrupts the oil flow path, causing inadequate cooling and elevated fluid temperatures that trigger warning lights.

Technical Specifications

Compatibility

This filler nozzle is engineered for the ZF WG 210 series, but it also fits select models in the WG180, WG200, and WG250 families due to shared housing designs. It is a direct replacement for transmissions equipped with the HOUS.FRONT SECT and HOUSING REAR PART. For optimal sealing, always pair this nozzle with the HOUSING REAR SECTION to prevent cross-threading. Verify your transmission’s serial number against ZF’s compatibility charts before installation.

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