Overview
The ZF 4657.055.114 5 WG 210 Powershift Transmission Assembly | Complete Unit is a fully integrated, factory-matched drivetrain component designed for heavy-duty off-highway applications. This complete assembly serves as the central power distribution hub within the WG 210 series, managing torque flow across five forward speeds and one reverse range. The SKU 4657.055.114 denotes a remanufactured or new-build unit that includes the main gear cluster, clutch packs, and hydraulic valve body. It sits between the engine bellhousing and the final drive, requiring precise alignment with the TRANSMISSION HOUSING to ensure proper oil circulation and structural integrity. This assembly is critical for loaders, graders, and industrial tractors operating in demanding environments.
Symptoms of Failure
- Delayed engagement or gear slipping under load – Worn clutch discs or degraded seals inside the 4657.055.114 unit cause hesitation when shifting from neutral to forward or reverse, particularly on inclines.
- External oil leaks near the housing joints – Cracks or gasket failure in the HOUS.FRONT SECT or HOUSING REAR PART allow transmission fluid to escape, leading to low pressure and overheating.
- Unusual whining or grinding noises during operation – Bearing fatigue or gear tooth damage within the assembly produces metallic sounds that intensify with speed changes.
- Erratic shift patterns or transmission shudder – Contaminated hydraulic fluid or a failing torque converter lockup clutch causes vibration during gear changes, often misdiagnosed as engine trouble.
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 4657.055.114 |
| Assembly Type | Complete Powershift Unit (5 WG 210) |
| Dry Weight (approx.) | 185 kg (408 lbs) |
| Overall Length | 620 mm |
| Overall Width | 480 mm |
| Overall Height | 510 mm |
| Housing Material | High-grade cast iron (GGG-40) |
| Max Input Torque | 1,200 Nm |
| Fluid Capacity | 22 liters (SAE 10W-30) |
| OEM Reference | ZF 5 WG 210 |
Compatibility
This complete unit is engineered for the ZF WG 210 series and is directly compatible with the following transmission models: WG 180, WG 200, WG 210, and WG 250. It also fits select variants of the WG 160 when used with the appropriate HOUSING REAR SECTION. Always verify the bellhousing pattern and output flange configuration before installation. The assembly integrates with the HOUS.FRONT SECT and HOUSING REAR PART to form a sealed driveline.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101082 | TRANSMISSION HOUSING | Main structural casing for gear and shaft support |
| 4657201166 | HOUS.FRONT SECT | Front section housing input shaft and pump drive |
| 4657201170 | HOUSING REAR PART | Rear section enclosing output shaft and parking brake |
| 4657298102 | HOUSING REAR SECTION | Alternate rear housing for extended wheelbase models |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing mating surfaces |
| 0636100801 | CAP SCREW | M12 fastener for securing housing sections |
| 4656301148 | FIXING PLATE | Locking plate for clutch pack retention |
| 4657301032 | SCREEN SHEET | Fine mesh filter for hydraulic circuit (short) |
| 4657301033 | SCREEN SHEET | Fine mesh filter for hydraulic circuit (long) |
| 0636100803 | CAP SCREW | M10 fastener for valve body mounting |
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