ZF 4657.064.302 4 WG 211 Powershift Transmission Assembly | Complete Unit

Overview

This ZF 4657.064.302 4 WG 211 Powershift Transmission Assembly is a complete, factory-engineered unit designed for heavy-duty off-highway applications. As the core hydraulic-mechanical assembly in the WG 211 series, it integrates the torque converter, planetary gear sets, and clutch packs into a single, ready-to-install package. The SKU 4657.064.302 serves as the direct replacement for worn or failed transmissions in loaders, dozers, and graders, ensuring precise power modulation and smooth directional shifts under extreme loads. This assembly sits between the engine bellhousing and the final drive, acting as the primary power distribution hub.

Symptoms of Failure

• Delayed or harsh engagement: When the internal clutch packs or seals degrade, operators experience a noticeable lag between shifting and actual gear engagement, often accompanied by a jarring “clunk.” This is a common long-tail search query for “ZF powershift transmission slipping.”
• External oil seepage at housing joints: Worn gaskets or cracked castings around the TRANSMISSION HOUSING or the HOUS.FRONT SECT allow hydraulic fluid to escape, leading to low pressure and eventual transmission overheating.
• Intermittent loss of power under load: A failing torque converter or worn planetary bearings cause the machine to lose tractive effort when pushing heavy material, a symptom often searched as “ZF 4 WG 211 no power.”
• Unusual whining or grinding noises: Metal-to-metal contact from failed bearings or scored gears produces a distinct high-pitched whine that increases with engine RPM, indicating imminent internal failure.

Technical Specifications

Compatibility

This complete unit is specifically engineered for the ZF WG 211 series transmission family. It is a direct fit for models including the WG180, WG200, and WG211. The assembly is commonly used in construction machinery such as the Liebherr L556, Volvo L70F, and Caterpillar 924G wheel loaders. The HOUSING REAR PART and the CYLINDRICAL PIN are critical alignment components during installation. Always verify your transmission serial number against the WG 211 range before ordering.

Related Components

Frequently Asked Questions

Q: Can I install this 4657.064.302 assembly without replacing the housing sections?
A: It is strongly recommended to inspect the TRANSMISSION HOUSING and both front and rear sections for cracks or wear. While the complete unit includes new internals, reusing a damaged housing can lead to misalignment and premature failure of the new assembly.

Q: What is the typical lifespan of a ZF 4 WG 211 complete unit?
A: Under normal operating conditions with proper maintenance (oil changes every 500 hours), this assembly typically lasts 8,000 to 12,000 hours. Harsh applications like rock handling or continuous reverse operation may reduce this interval.

Q: Does this unit include the torque converter?
A: Yes, the ZF 4657.064.302 is a complete assembly that includes the integrated torque converter, all planetary gear sets, clutch packs, and the valve body. You only need to transfer external components like the SCREEN SHEET and FIXING PLATE from your old unit.