ZF 4651.231.013 OIL LEVEL TUBE for WG100 | OEM Genuine Part

Overview

The ZF 4651.231.013 OIL LEVEL TUBE is a precision-engineered component designed specifically for the WG 100 Series transmission. This OEM genuine part serves as the primary conduit for monitoring and maintaining optimal fluid levels within the transmission sump. Located on the side of the main casing, it interfaces directly with the TRANSMISSION HOUSING to provide accurate dipstick readings. The SKU 4651.231.013 ensures a factory-spec fit, preventing misalignment that can lead to inaccurate oil level assessments and subsequent transmission damage.

Symptoms of Failure

• Visible oil leaks around the dipstick tube base: A cracked or corroded tube often seeps transmission fluid, leaving puddles under the vehicle and causing low oil levels.
• Inaccurate fluid level readings: When the tube becomes distorted or its internal baffle breaks, the dipstick no longer seats correctly, leading to overfilling or underfilling during service.
• Gear slipping or harsh shifting: Insufficient lubrication from a leaking tube starves the clutch packs, resulting in delayed engagement or erratic gear changes during heavy loads.
• Burning smell from transmission fluid: Low oil levels caused by a compromised tube allow the fluid to overheat, producing a distinct burnt odor and accelerating internal wear.

Technical Specifications

Compatibility

This oil level tube is engineered for the ZF WG 100 Series, including models such as WG180, WG200, and WG210. It also fits select variants of the WG150 and WG250 where the dipstick port aligns with the HOUSING (4651301013) assembly. Always verify your transmission model suffix before installation, as minor casting changes in later production runs may require a different tube length.

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