ZF 4657.056.336 6 WG 210 Powershift Transmission Assembly | Complete Unit

Overview

The ZF 4657.056.336 6 WG 210 Powershift Transmission Assembly is a complete, factory-grade unit designed for heavy-duty off-highway machinery. This assembly integrates the full gear train, clutch packs, and hydraulic control system within a single robust package. As a core component of the WG 210 series, it manages torque distribution across six forward speeds, ensuring smooth power delivery under extreme loads. The SKU 4657.056.336 identifies this as a fully assembled replacement, eliminating the need for piecemeal rebuilding. It interfaces directly with the TRANSMISSION HOUSING to form the structural backbone of the driveline.

Symptoms of Failure

When the ZF 4657.056.336 assembly begins to fail, operators typically notice three distinct warning signs:

• Delayed or harsh gear engagement – Worn internal clutches or seals cause hesitation when shifting from neutral to forward or reverse, often accompanied by a jarring thud.
• Chronic oil leaks at housing joints – Deteriorated gaskets between the HOUS.FRONT SECT and the main assembly allow transmission fluid to weep, leading to low pressure and overheating.
• Intermittent power loss under load – Slipping gears or a failing torque converter produce a high-pitched whine and a noticeable drop in tractive effort when climbing grades.
• Metal particles in the fluid – Advanced wear of planetary gears or bearings generates ferrous debris, visible during routine oil changes.

Technical Specifications

Compatibility

This complete assembly is engineered specifically for the ZF WG 210 transmission series. It is also backward-compatible with earlier WG 180 and WG 200 models when used with the appropriate adapter kit. The unit directly replaces the HOUSING REAR PART and the HOUSING REAR SECTION in field rebuilds. It is commonly found in ZF 6WG210, 6WG200, and 6WG180 transmissions used in loaders, graders, and dump trucks.

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