ZF 4651.319.014 BUSH for WG100 | OEM Genuine Part

Overview

The ZF 4651.319.014 BUSH for WG100 is a precision-engineered bearing sleeve designed to reduce friction and maintain proper shaft alignment within the valve body and clutch housing assemblies of the WG series. This OEM genuine part, identified by SKU 4651.319.014, serves as a critical wear surface that supports rotating components under high hydraulic pressure. It is installed directly into the TRANSMISSION HOUSING and works in conjunction with the HOUSING to ensure precise oil flow control. Without this bushing, metal-to-metal contact accelerates internal damage, leading to costly rebuilds.

Symptoms of Failure

• Erratic gear engagement or delayed shifting – Worn bushings allow excessive radial play, causing valve body misalignment and inconsistent clutch pack application.
• Low hydraulic pressure at the main regulator valve – A scored bushing surface creates internal leakage, reducing line pressure and causing “ZF transmission slipping under load” scenarios.
• Metallic debris in the transmission pan – Flaking bronze or steel particles from the bushing contaminate the oil, often mistaken for “ZF WG100 grinding noise” during diagnosis.
• Oil weeping from the housing interface – Degraded bushing clearance compromises the seal between the O-RING and the HOUSING, leading to visible drips near the bell housing.

Technical Specifications

Compatibility

This bushing is specifically engineered for the ZF WG 100 Series transmissions, including models WG100, WG120, and WG150. It also fits select variants of the WG180 and WG200 when used in conjunction with the correct SCREEN SHEET and SEALING CAP. Always verify your transmission serial number against the OEM parts catalog before installation.

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