ZF 4644.183.071 LOOSE PARTS for WG200 | OEM Genuine Part

Overview

The ZF 4644.183.071 LOOSE PARTS for WG200 is a critical internal component designed to maintain precise hydraulic control within the WG 200 series transmission. This OEM genuine part, identified by SKU 4644.183.071, functions as a valve body or actuator sub-assembly that regulates oil flow to the clutch packs and shift elements. When installed correctly, it ensures smooth gear engagement and consistent torque delivery. This part is typically mounted inside the main transmission housing and works in direct conjunction with the 4644101249 TRANSMISSION HOUSING and the 4644301402 TRANSMISSION HOUSING to form the core hydraulic circuit.

Symptoms of Failure

When the ZF 4644.183.071 LOOSE PARTS begins to wear, operators often notice specific performance degradation. Common failure symptoms include:

• Erratic gear engagement or delayed shifting – The transmission hesitates before engaging a gear, especially under load.
• Intermittent loss of hydraulic pressure – You may experience slipping during acceleration or when climbing grades.
• Internal oil contamination – Worn components can shed debris, leading to clogged passages and erratic shifting patterns.
• Audible whining or grinding noises – Metal-to-metal contact inside the valve body produces distinct sounds during operation.

Technical Specifications

Compatibility

This LOOSE PARTS assembly is specifically engineered for the ZF WG 200 series transmissions. It is also compatible with the WG180 and WG190 models when used with the appropriate 4644301298 COVER PLATE and 0634306323 O-RING for proper sealing. The part is not recommended for WG150 or earlier series without consulting a ZF service manual.

Related Components