ZF 4644.231.181 OIL LEVEL TUBE for WG200 | OEM Genuine Part

Overview

The ZF 4644.231.181 OIL LEVEL TUBE is a critical component within the WG 200 series transmission assembly. This genuine OEM part provides the precise fluid level measurement necessary for maintaining optimal hydraulic pressure and lubrication in heavy-duty ZF gearboxes. Positioned along the side of the transmission housing, the tube serves as the primary interface for checking and maintaining proper oil volume. The SKU 4644.231.181 is engineered to exact ZF specifications, ensuring a secure seal and accurate fluid readings during routine maintenance intervals.

Symptoms of Failure

When the ZF 4644.231.181 oil level tube deteriorates, operators often notice transmission fluid leaking from the side of the housing, particularly after extended operation. A worn tube can cause erratic gear engagement or delayed shifting due to incorrect oil level readings. You may also observe visible cracks or brittleness around the mounting flange, leading to air ingress and foaming fluid. In severe cases, overheating and reduced transmission efficiency occur as the system struggles to maintain proper lubrication volume.

Technical Specifications

Compatibility

This genuine ZF oil level tube is specifically designed for the WG 200 series transmissions, including models WG180, WG200, and WG210. It directly replaces the original equipment tube in ZF Ecomat and Ecolife gearboxes used in municipal buses, refuse trucks, and heavy construction vehicles. Always verify your transmission model number before installation. The 4644.231.181 interfaces with the TRANSMISSION HOUSING and is secured using a HEXAGON SCREW during assembly.

During installation, technicians frequently replace the DISCONNECTION coupling and inspect the OUTPUT FLANGE for wear. Proper torque specifications for the mounting hardware are critical to prevent future leaks.

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