ZF 4657.056.018 6 WG 210 Powershift Transmission Assembly | Complete Unit

Overview

The ZF 4657.056.018 6 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 torque converter, planetary gear sets, and clutch packs into a single sealed housing. The SKU 4657.056.018 is a direct OEM replacement, ensuring precise alignment with the TRANSMISSION HOUSING and the HOUS.FRONT SECT to maintain hydraulic circuit integrity. This assembly eliminates the need for piecemeal rebuilding, reducing downtime for equipment in construction, mining, and material handling.

Symptoms of Failure

• Delayed or harsh engagement: When the assembly wears, you may notice a significant lag between shifting and actual gear engagement, often accompanied by a jarring clunk. This points to internal clutch pack wear or hydraulic pressure loss.
• Torque converter shudder under load: A vibration or shudder during acceleration, especially at low speeds, indicates stator or turbine damage within the unit. This symptom often worsens as the transmission heats up.
• External oil leaks at the housing seam: Fluid weeping between the HOUSING REAR PART and the main body suggests seal failure. Left unchecked, this leads to low fluid levels and eventual transmission slip.
• Erratic shifting or neutral creep: If the vehicle unexpectedly shifts out of gear or creeps forward in neutral, the valve body or clutch piston seals inside the assembly have likely failed.

Technical Specifications

Compatibility

This complete assembly is engineered for the ZF WG 210 series powershift transmissions. It is directly compatible with the following ZF models: WG 180, WG 200, and WG 210 (all variants). It also fits select applications in the WG 160 series when used with the correct CYLINDRICAL PIN alignment kit. Always verify your transmission serial number before ordering.

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