ZF 4661.004.024 4 WG 94 Powershift Transmission Assembly | Complete Unit

Overview

The ZF 4661.004.024 4 WG 94 Powershift Transmission Assembly is a complete, fully assembled unit engineered for heavy-duty off-highway applications. This SKU 4661.004.024 integrates the core gear cluster, clutch packs, and hydraulic control components into a single ready-to-install package. It serves as the primary power transfer module within the WG 94 series, converting engine torque into precise, shiftable output for loaders, graders, and industrial vehicles. The assembly is designed to bolt directly into the main TRANSMISSION HOUSING, where it interfaces with the HOUSING II to form the sealed drivetrain core.

Symptoms of Failure

• Erratic gear engagement or slipping under load: Worn clutch discs or degraded seals inside the assembly cause the transmission to lose torque during acceleration, especially on inclines.
• Delayed or harsh shifting between forward and reverse: Internal hydraulic pressure loss leads to a noticeable pause or a jarring clunk when changing direction.
• External oil seepage near the bell housing: Cracks or fatigue in the assembly body allow ATF to leak, often visible as drips around the joint with the CYLINDRICAL PIN mounting points.
• Unusual whining or grinding noises from the transmission center: Bearing wear or debris contamination within the unit produces a metallic sound that intensifies with engine RPM.

Technical Specifications

Compatibility

This complete unit is specifically designed for the ZF WG 94 series of powershift transmissions. It is a direct fit for models including the WG180, WG200, and WG210. The assembly also supports variants used in the WG 94-2 and WG 94-3 configurations. It replaces the earlier 4661.004.022 and 4661.004.023 revisions. The unit integrates with the TUBE for internal lubrication routing and requires the CYLINDRICAL PIN for precise alignment during installation.

Related Components