ZF 4651.330.001 CENTERING BUSH for WG100 | OEM Genuine Part

Overview

The ZF 4651.330.001 CENTERING BUSH is a precision-machined component designed to ensure exact alignment of the input shaft within the WG 100 transmission series. This genuine OEM part, identified by SKU 4651.330.001, sits between the transmission housing and the torque converter assembly, maintaining concentricity to prevent vibration and uneven wear. By securing the rotational axis, this centering bush directly supports smooth power transfer and extends the service life of adjacent assemblies such as the 4651101007: TRANSMISSION HOUSING and the 4651301029: HOUSING.

Symptoms of Failure

• Transmission misalignment noise: A persistent low-frequency hum or grinding sound during acceleration indicates the centering bush has lost its dimensional stability, causing the shaft to wobble.
• Oil seepage at the bell housing: Worn centering bushes allow lateral movement, breaking the seal of the 0634303928: O-RING and leading to visible fluid leaks around the front of the transmission.
• Gear engagement hesitation: When the input shaft is not properly centered, the clutch packs experience delayed or harsh engagement, often misdiagnosed as a valve body issue.
• Vibration through the driveline: Excessive radial play from a degraded centering bush transmits vibration into the 4651301024: HOUSING, felt most acutely at highway speeds.

Technical Specifications

Compatibility

This centering bush is engineered for the ZF WG 100 series and is also compatible with the WG 180, WG 200, and WG 210 transmission models. It fits directly into the 4651101007: TRANSMISSION HOUSING and interfaces with the 4651301029: HOUSING and 4651301024: HOUSING assemblies. Always verify the inner diameter clearance against your specific torque converter pilot before installation.

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