Overview
The ZF 4657.055.144 5 WG 210 Powershift Transmission Assembly is a complete, factory-matched unit designed for heavy-duty off-highway machinery. This assembly integrates the clutch packs, planetary gearsets, and hydraulic control system into a single drop-in replacement for ZF WG 210 series transmissions. The SKU 4657.055.144 serves as the core rotating assembly, transferring torque from the engine through five forward speeds and one reverse speed. It sits between the TRANSMISSION HOUSING and the HOUS.FRONT SECT, requiring precise alignment with the HOUSING REAR PART and HOUSING REAR SECTION for proper oil circulation and gear engagement.
Symptoms of Failure
- Delayed or harsh shifting under load: Worn clutch discs or piston seals inside the 4657.055.144 cause hesitation between forward and reverse gears, especially when operating on inclines.
- Internal oil pressure loss: Cracks in the assembly housing or degraded O-rings lead to low hydraulic pressure, resulting in gear slippage and overheating of the transmission fluid.
- Metallic debris in the oil pan: Bearing fatigue or gear tooth spalling generates metal particles that circulate through the system, often accompanied by a whining noise from the transmission center section.
- Inability to engage all five speeds: A seized one-way clutch or broken planetary carrier within the assembly prevents the transmission from shifting past third gear, limiting machine speed to 15 mph.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4657.055.144 |
| Assembly Type | Complete Powershift Unit (5 WG 210) |
| Overall Length | 485 mm (19.1 in) |
| Overall Width | 320 mm (12.6 in) |
| Dry Weight | 68 kg (150 lb) |
| Housing Material | Cast Iron GGG-40 |
| Clutch Disc Material | Sintered Bronze on Steel |
| OEM Reference | ZF 4657.055.144 |
| Max Input Torque | 1,200 Nm (885 lb-ft) |
| Oil Capacity (Assembly) | 4.5 L (1.2 gal) |
Compatibility
This complete unit is engineered for the ZF WG 210 series, which includes the WG 180, WG 200, and WG 210 models used in telehandlers, wheel loaders, and agricultural tractors. It directly replaces the 5-speed powershift assembly in ZF 4WG-210 and 5WG-210 transmissions manufactured after 2008. The 4657.055.144 is also compatible with select ZF Ergopower and Ecocomfort variants that share the same bolt pattern and spline count. Always verify the serial number on your existing transmission housing before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101082 | TRANSMISSION HOUSING | Encloses the gear train and oil sump |
| 4657201166 | HOUS.FRONT SECT | Front section supporting input shaft and PTO |
| 4657201170 | HOUSING REAR PART | Rear section housing output shaft bearings |
| 4657298102 | HOUSING REAR SECTION | End cover with oil filter mounting boss |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for housing dowels |
| 0636100801 | CAP SCREW | M10 bolt for housing fastening |
| 4656301148 | FIXING PLATE | Locks clutch piston in position |
| 4657301032 | SCREEN SHEET | Fine mesh filter for oil return line |
| 4657301033 | SCREEN SHEET | Coarse mesh filter for suction line |
| 0636100803 | CAP SCREW | M12 bolt for clutch pack retention |
