ZF 4657.056.107 6 WG 210 Powershift Transmission Assembly | Complete Unit

Overview

The ZF 4657.056.107 6 WG 210 Powershift Transmission Assembly | Complete Unit is a fully assembled, drop-in ready core for heavy-duty off-highway applications. As the central power distribution hub in the WG 210 series, this complete unit integrates the torque converter, planetary gear sets, and hydraulic control system into a single sealed assembly. The SKU 4657.056.107 denotes a factory-spec remanufactured or new complete assembly, designed to restore original shift quality and load-holding capacity. This unit sits between the engine bellhousing and the final drive, managing power flow through six forward speeds and one reverse. For structural integrity, it mates directly with the 4657101082: TRANSMISSION HOUSING, which encloses the rotating components, and is sealed by the 4657201166: HOUS.FRONT SECT at the input end.

Symptoms of Failure

When the ZF 4657.056.107 assembly begins to degrade, operators typically notice these specific failure modes:

• Erratic gear engagement or slipping under load – Worn clutch packs or valve body contamination cause the transmission to hesitate or lose torque during uphill hauling or heavy digging cycles.
• External oil leaks at housing seams – Cracks or gasket failures in the main casing, often originating where the 4657201170: HOUSING REAR PART joins the main body, lead to gradual fluid loss and eventual overheating.
• Delayed or harsh shifting between ranges – Internal hydraulic pressure drops, often linked to a failing torque converter or worn sealing rings, produce jarring shifts that reduce operator comfort and driveline life.
• Unusual whining or grinding noises from the bellhousing area – Bearing failure or debris contamination in the oil sump, sometimes traced to a compromised 4657298102: HOUSING REAR SECTION, creates audible distress signals.

Technical Specifications

Compatibility

This complete assembly is engineered for the WG 210 series powershift transmissions. Based on its design architecture, it is directly compatible with the following ZF models: WG 180, WG 200, and WG 210 (including all sub-variants such as WG 210/II and WG 210/III). It also fits select WG 160 applications with adapter modifications. The unit is commonly found in Case IH, JCB, Manitou, and Liebherr telehandlers, wheel loaders, and forklifts built between 2005 and 2020.

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