Overview
The ZF 4657.055.310 5 WG 210 Powershift Transmission Assembly is a complete, factory-matched unit designed for heavy-duty off-highway applications. This assembly serves as the core power transfer module within the WG 210 series, integrating all clutch packs, planetary gear sets, and hydraulic control components into a single ready-to-install package. The SKU 4657.055.310 is a direct replacement for original equipment transmissions in loaders, graders, and industrial tractors, ensuring seamless integration with existing drivelines. This complete unit eliminates the need for piecemeal rebuilding, reducing downtime and installation complexity.
Symptoms of Failure
- Delayed or harsh engagement: When the transmission hesitates before moving forward or reverse, or slams into gear, the internal clutch packs and seals within the 4657.055.310 assembly may be worn.
- Transmission slipping under load: If the engine revs but vehicle speed does not increase proportionally during grading or pushing, the powershift clutches are losing hydraulic pressure.
- External oil leaks near the bell housing: Deteriorated O-rings and gaskets on the front section allow transmission fluid to escape, often pooling under the vehicle after shutdown.
- Unusual whining or grinding noises: Worn bearings or damaged planetary gears inside the unit produce metallic sounds that intensify with speed changes.
Technical Specifications
| Parameter | Specification |
|---|---|
| OEM Part Number | 4657.055.310 |
| Transmission Series | WG 210 (5-speed powershift) |
| Overall Length | ~ 680 mm |
| Dry Weight | ~ 185 kg (408 lbs) |
| Housing Material | High-strength cast iron |
| Max Input Torque | 1,200 Nm |
| Fluid Capacity | ~ 22 liters |
| Compatible Clutch Type | Wet multi-disc (powershift) |
Compatibility
This complete unit is engineered for the ZF WG 210 series, but it also directly replaces assemblies in the WG 180 and WG 200 families due to shared bell housing bolt patterns and input shaft dimensions. It is commonly specified for ZF 5 WG 210 transmissions found in Volvo G-Series graders, Case 800-series loaders, and John Deere 772G motor graders. Always verify the serial number range of your existing unit to confirm interchangeability.
When installing the 4657.055.310, several companion components must be inspected or replaced to guarantee a leak-free, reliable assembly. The HOUS.FRONT SECT (part 4657201161) mates directly to the front of this unit and must be free of cracks. Secure the housing using 螺栓 (part 0636115293) torqued to factory specifications. A new O-RING (part 0634313603) is critical for sealing the hydraulic passages between the housing sections. Additionally, the CYLINDRICAL PIN (part 0631306816) ensures precise alignment of the clutch drum assembly during reassembly.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657201161 | HOUS.FRONT SECT | Front housing section for bell housing mounting |
| 0636115293 | 螺栓 | Mounting bolt for housing attachment |
| 0634313603 | O-RING | Hydraulic seal between housing sections |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for clutch drum assembly |
| 0636100801 | CAP SCREW | Fastener for valve body cover |
| 4656301148 | FIXING PLATE | Retaining plate for clutch pack |
| 4657301032 | SCREEN SHEET | Fine mesh filter for oil sump |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter for hydraulic circuit |
| 0636100803 | CAP SCREW | Bolt for oil pan attachment |
| 4656301047 | OIL FEED.HOUSG. | Oil feed housing for clutch lubrication |
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