ZF 4616.201.043 TUBE for WG65 | OEM Genuine Part

Overview

The ZF 4616.201.043 TUBE is a precision-engineered hydraulic fluid conduit specifically designed for the WG 65 Series transmission family. This OEM genuine part channels pressurized oil between the valve body and the clutch pack assembly, ensuring consistent lubrication and shift pressure within the gear train. As a critical component of the transmission’s hydraulic circuit, the tube maintains the integrity of the fluid path, preventing cross-contamination between circuits. The SKU 4616.201.043 is manufactured to ZF’s exacting tolerances, guaranteeing a leak-free seal when paired with the 4616101059 TRANSMISSION HOUSING.

Symptoms of Failure

• External oil seepage at tube junctions: A worn or cracked tube allows transmission fluid to escape, leaving visible drips under the vehicle and causing low fluid levels over time.
• Erratic gear engagement or delayed shifts: When the tube loses its internal seal, hydraulic pressure drops, leading to soft shifts or hesitation when moving from neutral to drive.
• Whining or humming noise from the transmission: Restricted fluid flow through a deformed tube creates cavitation, producing a high-pitched sound during acceleration.
• Overheating of the transmission housing: Insufficient oil delivery due to a blocked tube reduces cooling capacity, triggering thermal warnings on the dashboard.

Technical Specifications

Compatibility

This tube is engineered for the ZF WG 65 Series, which includes the WG65, WG80, and WG100 models commonly found in medium-duty trucks and construction equipment. It also fits select variants of the WG120 and WG150 transmissions where the hydraulic circuit uses identical routing. Always verify the part number against your transmission’s serial plate. The tube mounts directly to the 4616101059 TRANSMISSION HOUSING and is secured using 0636011038 HEXAGON SCREW, 0636011118 HEXAGON SCREW, and 0636016015 HEXAGON SCREW fasteners.

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