Overview
The ZF 4657.056.164 6 WG 210 Powershift Transmission Assembly | Complete Unit is a fully assembled, drop-in ready gearbox core designed for heavy-duty off-highway machinery. This complete unit integrates the main drive train, clutch packs, and hydraulic valve body within a robust cast-iron envelope. As the central power distribution module in the WG 210 series, it transfers engine torque to the final drives through six forward speeds. The SKU 4657.056.164 is a direct OEM replacement, ensuring precise alignment with the TRANSMISSION HOUSING and the HOUS.FRONT SECT to maintain structural integrity under high load cycles.
Symptoms of Failure
- Erratic gear engagement and slipping under load: Worn clutch discs or degraded seals inside the assembly cause the transmission to slip when shifting from neutral to forward, especially on inclines.
- Hydraulic fluid contamination and external seepage: Cracks in the HOUSING REAR PART or failed gaskets allow ATF to leak, leading to low pressure and delayed shifts.
- Unusual grinding or whining noise during operation: Bearing fatigue or gear tooth spalling within the complete unit produces metallic sounds that intensify with engine RPM.
- Complete loss of drive in one or more gears: Internal shaft breakage or a seized HOUSING REAR SECTION can stop power transmission entirely, requiring immediate unit replacement.
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 4657.056.164 |
| Assembly Type | 6 WG 210 Powershift (Complete Unit) |
| Dry Weight (approx.) | 185 kg (408 lbs) |
| Overall Length | 720 mm |
| Overall Width | 480 mm |
| Overall Height | 510 mm |
| Housing Material | High-grade cast iron (GGG-40) |
| Max Input Torque | 1,200 Nm |
| Fluid Capacity | 22 liters (SAE 10W-30) |
| OEM Reference | ZF 4657.056.164 |
Compatibility
This complete unit is engineered for the ZF WG 210 series powershift transmissions. It is directly compatible with the following ZF models: WG 180, WG 200, WG 210, and WG 250. The assembly also interfaces with the TRANSMISSION HOUSING and the HOUS.FRONT SECT used in these series. Always verify the bellhousing pattern and output flange configuration against your machine’s original unit before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101082 | TRANSMISSION HOUSING | Main structural casing for gear and shaft support |
| 4657201166 | HOUS.FRONT SECT | Front section housing input shaft and pump drive |
| 4657201170 | HOUSING REAR PART | Rear casing enclosing output shaft and parking brake |
| 4657298102 | HOUSING REAR SECTION | End cover for final drive connection |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing assembly |
| 0636100801 | CAP SCREW | Fastener for securing housing sections |
| 4656301148 | FIXING PLATE | Locking plate for bearing retention |
| 4657301032 | SCREEN SHEET | Fine mesh filter for hydraulic circuit |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter for oil sump |
| 0636100803 | CAP SCREW | High-strength bolt for clutch pack retention |
Authorized ZF Distributor
We are a certified supplier of genuine ZF components.
