ZF 0732.040.646 COMPRESSION SPRING for WG100/WG201 | OEM Genuine Part

Overview

The ZF 0732.040.646 COMPRESSION SPRING is a precision-engineered OEM genuine component designed for the WG 100 and WG 201 series transmissions. This spring plays a critical role in maintaining consistent pressure within the valve body or shift mechanism, ensuring smooth gear engagement and hydraulic circuit stability. As an integral part of the transmission’s control assembly, the 0732.040.646 works in conjunction with the 4644301189: THREADED BUSH to secure and tension internal components. Without this spring, the transmission cannot maintain proper clamping force, leading to operational inefficiencies.

Symptoms of Failure

• Delayed or erratic gear engagement: When the 0732.040.646 compression spring loses its tension, you may notice a lag when shifting from neutral to drive or reverse, often accompanied by harsh engagement.
• Intermittent slipping under load: A fatigued spring can cause insufficient pressure on clutch packs, resulting in power loss during acceleration or uphill driving.
• Hydraulic pressure fluctuations: Worn springs allow valve bodies to flutter, causing erratic pressure readings and potential damage to the 4644101160: TRANSMISSION HOUSING over time.
• Audible clicking or rattling: A broken or weakened spring may produce metallic noises from the transmission pan area, especially at idle or low speeds.

Technical Specifications

Compatibility

This compression spring is specifically engineered for the ZF WG 100 and WG 201 series transmissions, including models such as WG180, WG200, and WG210. It is a direct replacement for the original factory component and is commonly used alongside the 4644301323: TRANSMISSION HOUSING and the 4475280043: SCREW PLUG in the valve body assembly. Always verify your transmission model suffix (e.g., WG100-2, WG201-4) before ordering to ensure proper fitment.

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