ZF 4661.231.008 TUBE for WG94 | OEM Genuine Part

Overview

The ZF 4661.231.008 TUBE for WG94 is a precision-engineered hydraulic fluid conduit designed to direct pressurized oil within the transmission’s valve body and clutch pack circuits. This OEM genuine part, identified by SKU 4661.231.008, sits between the main TRANSMISSION HOUSING and the secondary HOUSING II, ensuring uninterrupted lubrication and shift pressure delivery. Constructed from high-strength steel with corrosion-resistant coating, this tube is critical for maintaining consistent hydraulic flow in WG 94 Series transmissions.

Symptoms of Failure

• External oil seepage near the valve body: A cracked or corroded tube allows ATF to escape, often pooling around the transmission pan or bell housing.
• Erratic gear engagement or delayed shifts: Reduced hydraulic pressure from a leaking tube causes soft shifts or slipping between gears, especially under load.
• Low transmission fluid level without visible pan leaks: Internal tube failure can divert fluid into non-pressurized cavities, leading to gradual fluid loss and overheating.
• Whining or buzzing noise during acceleration: Air ingestion through a damaged tube creates cavitation, producing audible hydraulic noise.

Technical Specifications

Compatibility

This tube is specifically engineered for the ZF WG94 series, but it also fits select variants of the WG180 and WG200 transmissions where the hydraulic circuit layout matches. It is a direct replacement for units built between 2005 and 2018. Always verify the presence of the TYPE PLATE on your transmission housing to confirm model compatibility. The tube is secured using a CYLINDRICAL PIN to prevent rotation during operation.

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