ZF 4651.353.030 BUSH for WG100 | OEM Genuine Part

Overview

The ZF 4651.353.030 BUSH is a precision-engineered bearing surface designed to support rotating shafts within the WG 100 Series transmission. This OEM genuine part, identified by SKU 4651.353.030, is press-fitted into the TRANSMISSION HOUSING to reduce friction and maintain correct gear alignment under heavy loads. As a sacrificial wear component, it ensures that the shaft journals and the HOUSING bore remain protected from direct metal-to-metal contact. Replacing this bushing during a transmission overhaul is critical to restoring proper shaft support and preventing premature damage to adjacent components.

Symptoms of Failure

• Low oil pressure and gear slipping: A worn 4651.353.030 bushing increases internal clearances, causing hydraulic fluid to bypass the lubrication circuit. This leads to insufficient clutch pack pressure and noticeable gear slipping under load.
• Metallic debris in transmission fluid: As the bushing surface erodes, fine bronze or steel particles contaminate the oil. These particles can clog the SCREEN SHEET and accelerate wear on other rotating assemblies.
• Abnormal whining or knocking noise: Excessive radial play from a worn bushing allows the shaft to vibrate against the HOUSING, producing a distinct low-frequency noise that intensifies during acceleration or deceleration.
• Oil leaks around the housing seal area: Shaft wobble caused by bushing wear can distort the O-RING seal, leading to external fluid seepage at the transmission housing joint.

Technical Specifications

Compatibility

This bushing is specifically engineered for the ZF WG 100 Series transmission family. It is a direct fit for models including the WG180, WG200, and WG210. The 4651.353.030 part is also commonly used in the WG 100 Series variants found in medium-duty trucks and off-highway equipment. Always verify the shaft diameter and housing bore dimensions against your transmission’s service manual before installation.

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