Overview
The ZF 4657.056.154 6 WG 210 Powershift Transmission Assembly is a complete, factory-grade unit designed for heavy-duty off-highway machinery. This assembly serves as the central power distribution hub, integrating the torque converter, planetary gear sets, and hydraulic clutch packs into a single, sealed system. As a direct replacement for the WG 210 series, the SKU 4657.056.154 ensures precise gear engagement under load, making it critical for loaders, graders, and industrial tractors. When installing this unit, it is essential to pair it with a sound TRANSMISSION HOUSING to maintain structural integrity and oil flow paths.
Symptoms of Failure
- Erratic gear engagement or slipping under load: Worn internal clutch discs or seal degradation within the 4657.056.154 assembly cause delayed shifts or complete loss of drive in specific ranges.
- External oil leaks near the bell housing: Cracks in the HOUS.FRONT SECT or gasket failures at the main joint allow hydraulic fluid to escape, leading to pressure drops.
- Metallic grinding noises during directional changes: Damaged planetary gears or bearing failure inside the assembly produce distinct whining or grinding sounds, especially when shifting from forward to reverse.
- Overheating transmission fluid: Internal contamination or blocked oil galleries force the system to run hot, often accompanied by burnt-smelling fluid.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4657.056.154 |
| Assembly Type | 6-Speed Powershift (WG 210) |
| Dry Weight (approx.) | 285 kg (628 lbs) |
| Overall Length | 620 mm |
| Overall Width | 480 mm |
| Overall Height | 510 mm |
| Primary Material | High-strength cast iron housing with steel gears |
| OEM Reference | ZF 4657.056.154 |
| Torque Capacity | 2100 Nm (estimated) |
Compatibility
This complete unit is engineered for the ZF WG 210 series transmissions. It is directly compatible with models such as the WG 180, WG 200, and WG 210, which are commonly found in construction and agricultural equipment. The assembly also fits select variants of the WG 160 series when used with the correct HOUSING REAR PART and HOUSING REAR SECTION to accommodate different output flange configurations. Always verify the bell housing pattern and input shaft spline count 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 the torque converter and pump drive |
| 4657201170 | HOUSING REAR PART | Rear casing enclosing output shaft and parking brake |
| 4657298102 | HOUSING REAR SECTION | Extended rear section for PTO or auxiliary drives |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for housing mating surfaces |
| 0636100801 | CAP SCREW | Fastener for securing housing sections |
| 4656301148 | FIXING PLATE | Locking plate for clutch piston retention |
| 4657301032 | SCREEN SHEET | Fine mesh filter for hydraulic oil circuit |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter for sump return line |
| 0636100803 | CAP SCREW | High-tensile bolt for clutch pack assembly |
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