ZF 4644.231.139 OIL LEVEL TUBE for WG201 | OEM Genuine Part

Overview

The ZF 4644.231.139 OIL LEVEL TUBE is a precision-engineered component designed specifically for the WG201 series transmission. This OEM genuine part serves as the primary conduit for monitoring and maintaining proper fluid levels within the transmission sump. Positioned vertically along the transmission housing, the tube provides accurate dipstick readings essential for lubrication system integrity. The SKU 4644.231.139 ensures exact fitment and reliable performance in demanding industrial applications.

Symptoms of Failure

• Transmission fluid leaks around the dipstick area – A worn or cracked oil level tube often causes visible oil seepage at the insertion point, leading to low fluid levels and potential gear slipping.
• Inaccurate fluid level readings – When the tube becomes distorted or corroded, the dipstick no longer seats correctly, resulting in false readings that can cause overfilling or underfilling.
• Contaminated transmission fluid – A damaged tube allows dirt and moisture to enter the transmission housing, accelerating wear on internal components like the TRANSMISSION HOUSING.
• Whining or grinding noises during operation – Insufficient lubrication from a compromised tube leads to increased friction and audible distress from gear sets.

Technical Specifications

Compatibility

This oil level tube is engineered for the ZF WG201 series transmissions. It is also compatible with WG180, WG200, and WG210 models that share the same sump design. The part integrates seamlessly with the TRANSMISSION HOUSING and requires the THREADED BUSH for secure mounting. Always verify your transmission model before installation.

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