ZF 4661.330.022 CONVERTER BELL for WG94 | OEM Genuine Part

Overview

The ZF 4661.330.022 CONVERTER BELL is a critical structural component designed for the WG 94 Series transmission family. This OEM genuine part serves as the housing that connects the torque converter assembly to the main gearbox casing, ensuring precise alignment and vibration dampening during high-torque operations. The SKU 4661.330.022 is engineered to withstand extreme thermal expansion and mechanical stress, acting as the primary interface between the engine flywheel and the transmission input shaft. Without this bell housing, the converter cannot maintain its axial position, leading to immediate driveline failure.

Symptoms of Failure

When the 4661.330.022 converter bell begins to wear, operators often notice transmission fluid leaking from the bell housing area, a common long-tail search query for WG94 diagnostics. Another critical symptom is gear slipping under load, particularly during acceleration from a stop, as misalignment causes the converter to lose hydraulic coupling. You may also detect metallic grinding noises near the engine-transmission junction, indicating the bell has warped or cracked. Finally, excessive driveline vibration at highway speeds frequently points to a compromised bell housing that no longer centers the torque converter properly.

Technical Specifications

Compatibility

This converter bell is specifically engineered for the ZF WG 94 Series transmissions, including models such as the WG180, WG200, and WG250. It is also compatible with certain WG 94 variants used in off-highway construction equipment and heavy-duty trucks. Always verify your transmission model code before installation, as the 4661.330.022 is not interchangeable with earlier WG 80 series bells.

During installation, this bell housing works in concert with the 4656183200: LOOSE PARTS kit, which includes all necessary fasteners and seals. The 6073003011: CONTROL UNIT must be properly calibrated after bell replacement to ensure shift timing accuracy. Additionally, the 4661101033: HOUSING and 4661301096: HOUSING components are direct neighbors in the assembly, requiring careful alignment during reassembly to prevent oil channel blockages.

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