ZF 4644.323.017 BUSH for WG200 | OEM Genuine Part

Overview

The ZF 4644.323.017 BUSH for WG200 is a precision-engineered OEM genuine component designed to function as a critical wear surface within the transmission’s hydraulic control system. This bushing acts as a low-friction guide and support element, typically positioned inside the valve body or clutch housing assembly, where it reduces vibration and maintains precise alignment of moving shafts. The SKU 4644.323.017 is manufactured to ZF’s exacting tolerances, ensuring a seamless fit that prevents metal-on-metal contact and extends the service life of adjacent assemblies. When replacing this bushing, it is common practice to also inspect and install a new 4460165051: CONSOLE and a 4460368311: CONSOLE to maintain structural integrity within the housing.

Symptoms of Failure

• Transmission oil leaks around the valve body area: A worn 4644.323.017 bushing can create gaps that allow pressurized hydraulic fluid to escape, leading to visible drips or wet spots on the transmission casing.
• Gear slipping or delayed engagement under load: When the bushing loses its dimensional stability, it fails to properly guide control rods, resulting in inconsistent clutch pack application and erratic shifting behavior.
• Abnormal metallic grinding or whining noises: Excessive clearance from a degraded bushing permits shaft wobble, generating audible friction sounds that intensify during acceleration or gear changes.
• Increased transmission operating temperature: Internal fluid bypass caused by bushing wear reduces hydraulic efficiency, forcing the system to work harder and overheat during normal operation.

Technical Specifications

Compatibility

This OEM bushing is specifically engineered for the ZF WG 200 Series transmissions, including the WG180, WG200, and WG210 models used in medium-duty commercial vehicles and off-highway equipment. It is a direct replacement for the original factory-installed component and is not interchangeable with aftermarket bushings due to unique chamfer geometry. For complete assembly restoration, pair this part with a 0636011429: HEXAGON SCREW and a 0730100365: WASHER to secure the mounting points correctly.

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