Overview
The ZF 4657.104.011 DIFFERENTIAL is a critical torque-distributing component engineered specifically for the WG 190 and WG 210 series transmissions. This OEM genuine part, identified by SKU 4657.104.011, sits within the rear axle assembly of the transmission housing, where it manages the rotational speed difference between the drive wheels while transferring engine power. As a precision-machined unit, it ensures smooth cornering and prevents driveline binding under heavy loads. For proper installation, this differential interfaces directly with the 4657101039: TRANSMISSION HOUSING and the 4657201028: HOUS.FRONT SECT, forming a sealed assembly that withstands high torque demands in industrial applications.
Symptoms of Failure
- Oil leaks near the differential housing: Worn seals or bearing surfaces on the 4657.104.011 unit often cause transmission fluid to seep past the 4657201013: HOUSING REAR PART, leading to low lubricant levels and overheating.
- Gear slipping or clunking during turns: A failing differential produces audible grinding or thumping noises when the vehicle corners, indicating damaged spider gears or worn side bearings.
- Vibration under acceleration: Excessive play in the differential assembly creates driveline shudder, especially when paired with a loose 0631306792: CYLINDRICAL PIN that secures internal components.
- Uneven tire wear or wheel hop: A seized or slipping differential forces one wheel to spin faster than the other, accelerating tread degradation and reducing traction on uneven surfaces.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number (SKU) | 4657.104.011 |
| OEM Reference | ZF 4657.104.011 |
| Material | Forged alloy steel with induction-hardened teeth |
| Weight | 18.5 kg (40.8 lbs) |
| Overall Diameter | 320 mm |
| Axle Spline Count | 32 internal splines |
| Bearing Type | Tapered roller bearings (pre-loaded) |
| Torque Capacity | 2,800 Nm (2,065 ft-lbs) |
| Seal Type | Double-lip nitrile rubber with dust shield |
Compatibility
This differential is designed for the ZF WG 190 and WG 210 series transmissions, which are commonly used in heavy-duty trucks, construction loaders, and agricultural tractors. Based on its spline count and housing dimensions, the 4657.104.011 also fits select WG 180 and WG 200 models when paired with the correct 4657201013: HOUSING REAR PART. Always verify compatibility with your transmission’s serial number before installation. For complete assembly, ensure the 4657101039: TRANSMISSION HOUSING and 4657201028: HOUS.FRONT SECT are free of cracks or wear.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101039 | TRANSMISSION HOUSING | Main structural casing that encloses the differential and gear sets |
| 4657201028 | HOUS.FRONT SECT | Front section of the housing that supports input shaft bearings |
| 4657201013 | HOUSING REAR PART | Rear housing segment that seals the differential output area |
| 0631306792 | CYLINDRICAL PIN | Alignment pin for precise positioning of housing sections |
| 0636100801 | CAP SCREW | Fastener for securing the differential bearing caps |
| 4656301148 | FIXING PLATE | Locking plate that prevents cap screw loosening |
| 4657301034 | SCREEN SHEET | Fine mesh filter for differential oil flow |
| 4657301035 | SCREEN SHEET | Coarse mesh pre-filter for the oil feed circuit |
| 0636100803 | CAP SCREW | Fastener for the differential housing cover |
| 4681301040 | OIL FEED.HOUSG. | Lubrication channel housing that directs oil to differential bearings |
