ZF 4657.231.029 OIL LEVEL TUBE for WG210 | OEM Genuine Part

Overview

The ZF 4657.231.029 OIL LEVEL TUBE is a precision-engineered component designed specifically for the WG210 series transmission. This genuine OEM part serves as the critical conduit for accurate fluid level measurement within the transmission sump. Installed directly into the TRANSMISSION HOUSING, the tube provides a dedicated channel for the dipstick, ensuring that operators and technicians can verify oil levels without contamination or misreading. The SKU 4657.231.029 is manufactured to ZF’s exacting tolerances, guaranteeing a perfect seal and consistent performance in heavy-duty industrial applications.

Symptoms of Failure

• Transmission fluid seepage at the housing interface: A worn or cracked oil level tube allows ATF to escape, often pooling near the HOUS.FRONT SECT connection point.
• Inaccurate dipstick readings leading to overfilling: When the tube deforms or its internal bore becomes obstructed, the dipstick cannot seat properly, causing false low-level indications and subsequent overfilling.
• Contaminant ingress into the transmission: A compromised tube seal permits dirt and moisture to bypass the HOUSING REAR PART seal, accelerating internal wear.
• Gear engagement hesitation under load: Low fluid levels caused by tube leakage reduce hydraulic pressure, leading to delayed shifts in WG210 series units.

Technical Specifications

Compatibility

This oil level tube is engineered for the ZF WG210 series transmission family. Based on its design and mounting interface, it is also compatible with the WG180, WG200, and WG250 series models that share the same HOUSING REAR SECTION architecture. The 4657.231.029 replaces earlier revision tubes and is backward-compatible with all WG210 variants produced after 2010. Always verify the housing casting number before installation.

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