Overview
The ZF 4657.055.313 5 WG 210 Powershift Transmission Assembly represents a complete, factory-grade unit designed for heavy-duty off-highway machinery. This SKU 4657.055.313 serves as the core hydraulic-mechanical assembly that manages clutch engagement and torque distribution within the WG 210 series. It integrates the main drive shaft, planetary gear sets, and valve body housing into a single sealed unit. When installed, this assembly interfaces directly with the HOUS.FRONT SECT to form the forward bulkhead of the transmission case. Proper sealing is achieved using a O-RING at the mating flange, while the entire assembly is secured to the bell housing using a 螺栓 (cap screw) pattern. A CYLINDRICAL PIN ensures precise alignment during reassembly, preventing shaft misalignment.
Symptoms of Failure
- Erratic clutch engagement or gear slipping under load: When the internal valve body or clutch pack within the 4657.055.313 assembly wears, operators notice delayed or harsh shifting, especially when transitioning between forward and reverse gears.
- Hydraulic oil leaks at the front housing interface: A degraded O-RING or cracked housing can cause ATF to weep from the joint between the assembly and the CYLINDRICAL PIN bore, leaving visible drips on the bell housing.
- Unusual whining or grinding noises from the transmission sump: Worn planetary bearings or damaged screen sheets inside the assembly produce metallic sounds that intensify with engine RPM, indicating imminent internal failure.
- Loss of hydraulic pressure or slow response times: A failing assembly cannot maintain adequate pressure to the clutches, causing a lag of 2–3 seconds before the machine moves after shifting.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number (SKU) | 4657.055.313 |
| Assembly Type | 5-Speed Powershift Transmission (Complete Unit) |
| Series | WG 210 |
| OEM Reference | ZF 5 WG 210 |
| Estimated Dry Weight | 185 kg (408 lbs) |
| Housing Material | Cast Iron (GGG-40) |
| Overall Length | 720 mm |
| Overall Width | 480 mm |
| Overall Height | 510 mm |
| Bolt Torque (Main Housing) | 120 Nm (using CAP SCREW 0636100801) |
| Oil Capacity (Assembly) | 14.5 liters |
| Included Sealing Kit | Requires O-RING 0634313603 |
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 211. The assembly also fits select variants of the ZF 5 WG 210 used in telehandlers, wheel loaders, and backhoe loaders from manufacturers such as JCB, Case, and New Holland. Always verify the front housing interface using the HOUS.FRONT SECT part number to confirm compatibility with your specific chassis.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657201161 | HOUS.FRONT SECT | Front housing section for transmission case |
| 0636115293 | 螺栓 | Hex bolt for housing fastening |
| 0634313603 | O-RING | Seal for hydraulic fluid containment |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing assembly |
| 0636100801 | CAP SCREW | Fastener for valve body cover |
| 4656301148 | FIXING PLATE | Retainer for clutch pack assembly |
| 4657301032 | SCREEN SHEET | Fine mesh filter for oil return circuit |
| 4657301033 | SCREEN SHEET | Coarse mesh filter for suction line |
| 0636100803 | CAP SCREW | Bolt for oil pan attachment |
| 4656301047 | OIL FEED.HOUSG. | Oil supply housing for lubrication circuit |
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