Overview
The ZF 4657.055.315 5 WG 210 Powershift Transmission Assembly is a complete, factory-matched unit designed for heavy-duty off-highway machinery. This assembly integrates the clutch pack, planetary gear sets, and hydraulic control elements into a single, ready-to-install package. As the core power transfer module in the WG 210 series, it converts engine torque into smooth, multi-speed output for wheel loaders, graders, and industrial tractors. The SKU 4657.055.315 replaces worn or failed assemblies to restore original shift quality and load-holding capacity. When installing this unit, ensure the HOUS.FRONT SECT (4657201161) is properly aligned to prevent misalignment stress on the main shaft.
Symptoms of Failure
- Erratic shifting or gear slipping under load: Worn clutch discs or piston seals inside the assembly cause delayed engagement or complete loss of drive in specific ranges.
- External oil leaks near the bell housing: Degraded O-rings or gaskets allow transmission fluid to escape, often visible as drips after extended operation.
- Abnormal whining or grinding noises: Bearing wear or planetary gear damage produces metallic sounds that intensify with speed changes.
- Overheating and burnt fluid smell: Internal friction material breakdown generates excessive heat, leading to dark, acrid-smelling oil.
Technical Specifications
| Parameter | Value |
|---|---|
| Overall Length | 620 mm (24.4 in) |
| Overall Width | 380 mm (15.0 in) |
| Overall Height | 410 mm (16.1 in) |
| Dry Weight | 145 kg (320 lbs) |
| Housing Material | High-strength cast iron (GGG-40) |
| Clutch Disc Material | Sintered bronze on steel core |
| Max Input Torque | 2,100 Nm (1,549 lb-ft) |
| OEM Reference | ZF 4657.055.315 |
| Seal Type | Viton O-rings (high-temp rated) |
Compatibility
This complete unit is engineered for the ZF WG 210 series, but its core architecture is shared with several other ZF powershift models. It is a direct fit for WG 180, WG 200, and WG 210 transmissions used in 5-speed configurations. The assembly also cross-references with select WG 150 variants when the bell housing adapter is changed. For proper sealing during installation, always replace the O-RING (0634313603) and the 螺栓 (0636115293) fasteners to maintain clamping force. Additionally, the CYLINDRICAL PIN (0631306816) must be installed to index the housing sections correctly.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657201161 | HOUS.FRONT SECT | Front housing section that supports the input shaft and pump drive |
| 0636115293 | 螺栓 | Hex head bolt for securing housing halves |
| 0634313603 | O-RING | Static seal between housing sections |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for precise housing positioning |
| 0636100801 | CAP SCREW | M10 cap screw for clutch pack retention |
| 4656301148 | FIXING PLATE | Locking plate for output flange |
| 4657301032 | SCREEN SHEET | Fine mesh filter for lubrication circuit |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter for pump suction |
| 0636100803 | CAP SCREW | M12 cap screw for valve body mounting |
| 4656301047 | OIL FEED.HOUSG. | Oil feed housing for clutch lubrication |
