ZF 4657.054.168 4 WG 210 Powershift Transmission Assembly | Complete Unit

Overview

This ZF 4657.054.168 4 WG 210 Powershift Transmission Assembly is a complete, factory-matched unit designed for heavy-duty industrial drivelines. As the core power transfer module in the WG 210 series, it integrates the torque converter, planetary gear sets, and clutch packs into a single sealed assembly. The SKU 4657.054.168 replaces the need for individual component sourcing, ensuring correct gear ratios and hydraulic timing for ZF 4-speed powershift applications. This complete unit is typically mounted between the engine flywheel housing and the output driveline, serving as the primary torque multiplication and gear selection device.

Symptoms of Failure

• Delayed or harsh engagement: When the internal clutch packs wear, operators experience a noticeable lag between shifting and actual gear engagement, often accompanied by a jarring “clunk.” This is a common search query for “ZF powershift transmission slipping.”
• External oil seepage at housing joints: Fatigue cracks or gasket failure in the main casing lead to ATF leaks around the bell housing or rear output seal. Search terms like “ZF WG210 oil leak repair” frequently point to this assembly.
• Loss of forward or reverse drive: Internal seal failure or planetary gear damage causes a complete loss of power in one or more ranges, a symptom often searched as “ZF transmission no reverse WG200.”
• Overheating under load: A failing torque converter or blocked internal oil passages cause the transmission to run hot, triggering warning lights. This is a key indicator for “ZF powershift overheating causes.”

Technical Specifications

Compatibility

This complete unit is engineered specifically for the ZF WG 210 series. It is also a direct fit for the WG 180 and WG 200 series transmissions when used in industrial forklifts, wheel loaders, and telescopic handlers. The assembly shares bolt patterns and hydraulic port locations with the WG 211 and WG 220 variants, though internal gear ratios may vary. Always verify the serial number against your existing transmission housing to confirm fitment.

Related Components

When replacing the complete assembly, inspect these companion parts that mount directly to the unit. The TRANSMISSION HOUSING (4657101078) forms the main structural shell, while the HOUS.FRONT SECT (4657201166) and HOUSING REAR PART (4657201168) enclose the clutch packs. For the tail section, the HOUSING REAR SECTION (4657298101) is critical for output shaft alignment.

Frequently Asked Questions

Q: Can this complete assembly be installed without removing the torque converter?
A: Yes. The ZF 4657.054.168 ships as a fully assembled unit with the torque converter pre-installed and aligned. You only need to bolt it to the flywheel housing and connect the hydraulic lines.

Q: What is the typical service life of this WG210 assembly under heavy use?
A: With proper maintenance and clean oil, this powershift unit typically lasts 8,000 to 12,000 operating hours before requiring an overhaul. The cast iron housing and planetary gears are designed for multiple rebuild cycles.

Q: Does this part include the valve body or shift solenoids?
A: No. This is the mechanical assembly only (housing, gears, clutches, and torque converter). The external valve body and electronic controls must be transferred from your old unit or ordered separately.