ZF 4657.054.074 4 WG 210 Powershift Transmission Assembly | Complete Unit

Overview

This ZF 4657.054.074 4 WG 210 Powershift Transmission Assembly is a complete, factory-matched unit designed for heavy-duty off-highway applications. As the core power transfer module in the WG 210 series, this assembly integrates the planetary gear sets, clutch packs, and hydraulic control valves required for seamless direction and speed changes under load. The SKU 4657.054.074 represents a fully assembled unit, eliminating the need for piecemeal component sourcing. It sits directly between the engine bellhousing and the final drive, converting engine torque into controlled, multi-speed output. For a complete rebuild, this assembly must be paired with a structurally sound TRANSMISSION HOUSING to ensure proper alignment of all internal rotating elements.

Symptoms of Failure

• Erratic gear engagement and slipping under load: Worn clutch discs or degraded seals within the assembly cause the transmission to hesitate or slip when shifting between forward and reverse, especially on inclines.
• Internal hydraulic pressure loss: Cracks or wear in the valve body or piston bores lead to low system pressure, resulting in delayed shifts and a loss of power to the wheels.
• Metallic debris in the oil filter or pan: Advanced wear on bearings or gear teeth produces fine metal particles, indicating imminent internal failure of the rotating assembly.
• External oil seepage from the main case joint: Gasket failure between the main housing and the HOUS.FRONT SECT can cause visible drips, leading to low fluid levels and eventual overheating.

Technical Specifications

Compatibility

This complete unit is specifically engineered for the ZF WG 210 series of powershift transmissions. It is directly compatible with models including the WG 210, WG 211, and select variants of the WG 200 series that share the same bellhousing pattern and input shaft spline count. It is not backward-compatible with the smaller WG 180 series without significant modification to the HOUSING REAR PART and output flange. Always verify the original transmission tag before ordering.

Frequently Asked Questions

Q: Does this assembly include the torque converter?
A: No, the 4657.054.074 is the main transmission assembly only. The torque converter and the CYLINDRICAL PIN for the pump drive must be ordered separately.

Q: Can I install this unit without removing the cab or engine?
A: In most wheel loaders and graders, yes. However, you must first detach the front section housing to access the mounting bolts. We recommend replacing the TRANSMISSION HOUSING gasket simultaneously.

Q: What is the typical warranty period for a complete assembly?
A: Standard warranty coverage is 12 months from the date of installation, provided the unit is installed with clean fluid and a new filter.

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