ZF 0732.040.736 COMPRESSION SPRING for WG65 | OEM Genuine Part

Overview

The ZF 0732.040.736 COMPRESSION SPRING is a critical OEM genuine component engineered specifically for the WG65 and WG180 series transmissions. This precision spring provides the necessary preload force within the valve body or clutch piston assembly, ensuring consistent hydraulic pressure regulation and smooth gear engagement. As an original ZF part, the SKU 0732.040.736 guarantees exact dimensional tolerances and material composition required for long-term reliability in heavy-duty industrial applications. When installed alongside a properly sealed TRANSMISSION HOUSING, this spring maintains the structural integrity of the shift control system.

Symptoms of Failure

• Delayed or harsh shifting – A worn compression spring loses its calibrated tension, causing sluggish engagement or abrupt gear changes under load.
• Intermittent gear slipping – When the spring cannot maintain proper valve pressure, the transmission may momentarily lose drive power during acceleration.
• Erratic hydraulic pressure fluctuations – A fatigued spring leads to inconsistent oil flow, often detected by abnormal pressure gauge readings or warning lights.
• Oil contamination from metal debris – A broken spring can shed fragments into the transmission fluid, accelerating wear on adjacent components like the HEXAGON SCREW fasteners.

Technical Specifications

Compatibility

This compression spring is a direct replacement for ZF WG65 and WG180 series transmissions. It is also compatible with select WG200 models that share the same valve body architecture. The spring works in conjunction with the HEXAGON SCREW and HEXAGON SCREW to secure the assembly within the transmission housing. Always verify the spring seat condition and replace any worn O-RING seals during installation to prevent fluid bypass.

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