ZF 4657.330.094 CONVERTER BELL for WG211 | OEM Genuine Part

Overview

The ZF 4657.330.094 CONVERTER BELL is a critical structural component designed for the WG211 series of powershift transmissions. This OEM genuine part, identified by SKU 4657.330.094, serves as the rigid housing that encloses the torque converter assembly, directly coupling the transmission to the engine flywheel housing. It absorbs torsional loads and maintains precise alignment between the engine crankshaft and the transmission input shaft. In a WG211 assembly, this bell housing works in concert with the 4657101087 TRANSMISSION HOUSING to form the main structural backbone of the drivetrain. Without a properly sealed and dimensionally stable converter bell, the entire gear train is vulnerable to misalignment and premature wear.

Symptoms of Failure

• Torque converter oil leaks at the bell housing seam: When the 4657.330.094 cracks or warps, transmission fluid seeps past the gasket, creating visible drips under the vehicle. This is a common long-tail search query for “ZF WG211 bell housing leak repair.”
• Vibration during gear engagement: A worn converter bell loses its concentricity, causing the torque converter to wobble. Operators often report “shuddering when shifting from neutral to drive” as the first sign of failure.
• Difficulty aligning the transmission during installation: If the bell housing mounting flange is distorted, the transmission will not bolt flush to the engine block, leading to “transmission won’t seat properly” complaints.
• Metallic grinding noise from the bell area: Internal clearance loss allows the converter fins to contact the bell interior, producing a distinct “scraping sound at idle” that worsens with load.

Technical Specifications

Compatibility

This converter bell is specifically engineered for the ZF WG211 series, but its mounting pattern also fits the WG180 and WG200 variants due to shared SAE bell housing standards. It is commonly used in off-highway equipment such as wheel loaders, graders, and industrial tractors. For full transmission rebuilds, this part must be paired with the 4657301172 HOUS.FRONT SECT and the 4657301173 HOUSING REAR PART to ensure proper oil gallery alignment. Additionally, the 0631306816 CYLINDRICAL PIN is required for dowel alignment during assembly.

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