Overview
The ZF 4657.055.317 5 WG 210 Powershift Transmission Assembly | Complete Unit is a fully assembled, drop-in replacement for heavy-duty powershift applications in the WG 210 series. This complete unit integrates the main gear cluster, clutch packs, and hydraulic control components into a single, pre-tested assembly. Designed for off-highway vehicles such as wheel loaders and graders, the SKU 4657.055.317 serves as the core rotating assembly that transfers engine torque through the transmission to the final drive. It sits centrally within the main housing, directly interfacing with the 4657101085: TRANSMISSION HOUSING and the 4657201161: HOUS.FRONT SECT to ensure precise alignment and oil distribution.
Symptoms of Failure
- Delayed or harsh gear engagement: Worn clutch discs or hydraulic seals inside the assembly cause sluggish shifting or sudden, jarring engagement under load.
- Internal oil leaks and pressure loss: Cracks in the unit’s casing or degraded O-rings lead to low line pressure, often accompanied by visible oil seepage near the bell housing.
- Unusual whining or grinding noises: Bearing fatigue or gear tooth spalling produces a high-pitched whine during acceleration, especially in lower gears.
- Transmission overheating: Slipping clutches generate excessive heat, triggering warning lights or burnt fluid odors during extended operation.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 4657.055.317 |
| Assembly Type | Complete Powershift Unit (5-speed) |
| Dry Weight (approx.) | 185 kg (408 lbs) |
| Overall Length | 720 mm |
| Overall Width | 410 mm |
| Overall Height | 480 mm |
| Housing Material | Cast Iron (GGG-40) |
| OEM Reference | ZF 5 WG 210 |
| Compatible Rear Housing | 4657201162: HOUSING REAR PART |
| Alternate Rear Section | 4657298107: HOUSING REAR SECTION |
Compatibility
This complete unit is engineered for the ZF WG 210 series powershift transmissions. It is a direct fit for models including the WG180, WG200, and WG210 variants commonly found in construction and mining equipment. The assembly also shares mounting interfaces with earlier WG160 series units when used with the correct adapter housing. Always verify the serial number against your existing transmission to confirm interchangeability.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101085 | TRANSMISSION HOUSING | Main outer casing that encloses the gear train |
| 4657201161 | HOUS.FRONT SECT | Front section housing for input shaft and pump drive |
| 4657201162 | HOUSING REAR PART | Rear section supporting output shaft and PTO |
| 4657298107 | HOUSING REAR SECTION | Alternate rear cover for specific WG210 variants |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for housing dowel holes |
| 0636100801 | CAP SCREW | M10 bolt for securing housing halves |
| 4656301148 | FIXING PLATE | Locks bearing preload on main shaft |
| 4657301032 | SCREEN SHEET | Fine mesh filter for oil return circuit |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter for suction line |
| 0636100803 | CAP SCREW | M12 bolt for rear housing attachment |
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