Overview
This ZF 4657.054.079 4 WG 210 Powershift Transmission Assembly is a complete, factory-matched unit designed for heavy-duty industrial applications. As the core drivetrain component in the WG 210 series, this assembly integrates the gear cluster, clutch packs, and hydraulic control system into a single ready-to-install package. The SKU 4657.054.079 serves as the direct replacement for worn or failed transmissions in loaders, graders, and material handlers. When rebuilding your ZF system, this complete unit works in concert with the TRANSMISSION HOUSING to provide structural integrity and precise gear alignment.
Symptoms of Failure
- Delayed or harsh engagement: When the internal clutches wear, operators experience a noticeable lag between shifting and power delivery, often accompanied by a jarring engagement.
- Hydraulic oil leaks around the bell housing: Cracks in the main casing or failed seals allow transmission fluid to escape, leaving puddles under the vehicle and causing low pressure warnings.
- Gear slipping under load: As internal components fatigue, the transmission fails to hold torque during heavy lifting or climbing, resulting in RPM flare without corresponding vehicle movement.
- Unusual whining or grinding noises: Worn bearings or damaged gear teeth produce metallic sounds that intensify with speed, indicating imminent internal failure.
Technical Specifications
| Specification | Value |
|---|---|
| OEM Part Number | 4657.054.079 |
| Transmission Series | WG 210 / 4 WG 210 |
| Dry Weight (approx.) | 185 kg (408 lbs) |
| Overall Length | 620 mm |
| Overall Width | 480 mm |
| Overall Height | 510 mm |
| Housing Material | High-grade cast iron |
| Seal Material | Nitrile rubber (NBR) |
| OEM Reference | ZF 4657.054.079 |
Compatibility
This complete unit is engineered specifically for the ZF WG 210 series, including the 4 WG 210 variant. It is also backward-compatible with earlier WG 180 and WG 200 models when used with the appropriate adapter components. The assembly directly replaces units in ZF ERGOPOWER and ECOMIX transmissions found in agricultural tractors and construction equipment. For proper installation, ensure the HOUS.FRONT SECT and HOUSING REAR PART are inspected for wear. The assembly also requires the CYLINDRICAL PIN for precise dowel alignment during mating.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101033 | TRANSMISSION HOUSING | Main structural casing for gear support |
| 4657201027 | HOUS.FRONT SECT | Front section housing input shaft bearings |
| 4657201012 | HOUSING REAR PART | Rear section enclosing output shaft |
| 0631306792 | CYLINDRICAL PIN | Alignment dowel for housing mating |
| 0636100801 | CAP SCREW | Fastener for housing flanges |
| 4656301148 | FIXING PLATE | Retains clutch pack assembly |
| 4657301032 | SCREEN SHEET | Fine mesh filter for hydraulic circuit |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter for oil sump |
| 0636100803 | CAP SCREW | Bolt for valve body attachment |
| 4681301040 | OIL FEED.HOUSG. | Distributes pressurized oil to clutches |
Frequently Asked Questions
Q: Can this 4657.054.079 unit be rebuilt, or is it only sold as a complete assembly?
A: While individual internal components are available, this SKU is specifically a complete, pre-assembled unit. For partial repairs, you may order the TRANSMISSION HOUSING separately if the casing is intact.
Q: What is the typical service life of this 4 WG 210 transmission before overhaul?
A: Under normal operating conditions with proper fluid maintenance, this assembly typically delivers 8,000 to 12,000 hours of service. Symptoms like slipping or leaks indicate it is time for replacement.
Q: Does this complete unit include the valve body and torque converter?
A: Yes, the 4657.054.079 assembly includes the integrated valve body and torque converter. For auxiliary components like the OIL FEED.HOUSG., they are pre-installed and tested.
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