Overview
The ZF 4657.055.140 5 WG 210 Powershift Transmission Assembly | Complete Unit is a fully assembled, drop-in ready gearbox designed for heavy-duty off-highway machinery. This complete unit integrates the main drive train, clutch packs, and hydraulic controls within a single robust housing. As a core component of the WG 210 Series, it manages torque distribution across five forward speeds, ensuring smooth power delivery under extreme loads. The SKU 4657.055.140 identifies this as a factory-matched assembly, eliminating the need for individual component sourcing. It sits directly between the engine flywheel and the final drive, serving as the central power transfer hub. For structural integrity, this unit relies on the 4657101082: TRANSMISSION HOUSING to enclose the rotating elements, while the 4657201166: HOUS.FRONT SECT and 4657201170: HOUSING REAR PART provide precise alignment for the input and output shafts.
Symptoms of Failure
When the ZF 4657.055.140 assembly begins to degrade, operators will notice distinct performance issues. Oil leaks at the housing seams are common, often caused by gasket fatigue or stress fractures in the casing. Gear slipping under load occurs when clutch pack friction material wears thin, leading to delayed engagement and power loss. Abnormal grinding noises during shifting indicate bearing wear or gear tooth damage, particularly in the rear section. Erratic hydraulic pressure may also surface, resulting in harsh or incomplete gear changes. These symptoms typically worsen over time, requiring immediate inspection of the 4657298102: HOUSING REAR SECTION for cracks or misalignment.
Technical Specifications
| Parameter | Specification |
|---|---|
| Assembly Weight | 185 kg (408 lbs) |
| Overall Length | 720 mm |
| Overall Width | 480 mm |
| Overall Height | 410 mm |
| Housing Material | High-strength cast iron (GGG-40) |
| Input Spline Count | 21-tooth, SAE 14″ |
| Output Flange | SAE C, 4-bolt pattern |
| OEM Reference | ZF 4657.055.140 |
| Max Torque Capacity | 1,200 Nm |
| Fluid Capacity | 12.5 liters (ZF TE-ML 03) |
Compatibility
This complete unit is engineered for the ZF WG 210 Series powershift transmissions. It is directly compatible with models including WG180, WG200, and WG210 found in loaders, graders, and material handlers. The assembly also fits select WG150 variants when used with adapter plates. For proper installation, ensure the 0631306816: CYLINDRICAL PIN is seated correctly to prevent rotational shift, and secure the unit using 0636100801: CAP SCREW fasteners. The 4656301148: FIXING PLATE must be torqued to specification to maintain housing alignment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101082 | TRANSMISSION HOUSING | Main structural enclosure for gear train |
| 4657201166 | HOUS.FRONT SECT | Front section supporting input shaft |
| 4657201170 | HOUSING REAR PART | Rear section for output shaft alignment |
| 4657298102 | HOUSING REAR SECTION | Additional rear housing for PTO mount |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing mating |
| 0636100801 | CAP SCREW | Fastener for housing bolts |
| 4656301148 | FIXING PLATE | Locks housing sections together |
| 4657301032 | SCREEN SHEET | Oil filter mesh for hydraulic circuit |
| 4657301033 | SCREEN SHEET | Secondary oil filtration screen |
| 0636100803 | CAP SCREW | Additional fastener for rear housing |
Authorized ZF Distributor
We are a certified supplier of genuine ZF components.
