Overview
The ZF 4657.104.007 DIFFERENTIAL is a critical torque-distribution component engineered specifically for the WG 190 and WG 210 series transmissions. This OEM genuine part sits within the final drive assembly, transferring rotational power from the driveshaft to the axle shafts while allowing wheels to rotate at different speeds during turns. The SKU 4657.104.007 is precision-machined to maintain optimal gear mesh and load-bearing capacity under heavy industrial stress. When installed alongside the 4657101041: TRANSMISSION HOUSING, this differential ensures smooth power delivery and extended service life in demanding applications.
Symptoms of Failure
- Whining or grinding noise during turns – Worn differential gears produce a distinct metallic sound, especially when cornering under load, indicating internal gear tooth damage or bearing failure.
- Oil leakage from the differential housing – Failed seals or gaskets around the differential cause transmission fluid to weep, leading to low lubricant levels and accelerated wear.
- Vibration or shuddering during acceleration – A failing differential creates uneven torque distribution, resulting in noticeable driveline shudder that worsens with speed.
- Difficulty maintaining traction on uneven surfaces – When the differential cannot properly compensate for wheel speed differences, the vehicle may struggle to grip or pull to one side.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 4657.104.007 |
| OEM Reference | ZF 4657.104.007 |
| Material | Case-hardened alloy steel |
| Weight | 12.4 kg (27.3 lbs) |
| Outer Diameter | 245 mm |
| Overall Length | 185 mm |
| Number of Teeth | 37 (ring gear) |
| Bolt Pattern | 8 x M12 on 180 mm PCD |
Compatibility
This differential is primarily designed for the ZF WG 190 and WG 210 transmission models. It also fits select variants of the WG 180, WG 200, and WG 220 series when used with the correct housing components. For proper installation, pair this part with the 4657201028: HOUS.FRONT SECT and the HOUSING REAR PART to ensure correct alignment. Additionally, the 0631306792: CYLINDRICAL PIN is required for precise dowel alignment during assembly. Always verify your transmission serial number against the OEM parts catalog before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101041 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4657201028 | HOUS.FRONT SECT | Front section housing for input shaft |
| 4657201013 | HOUSING REAR PART | Rear section supporting output bearings |
| 0631306792 | CYLINDRICAL PIN | Alignment dowel for housing assembly |
| 0636100801 | CAP SCREW | Fastener for differential cover |
| 4656301148 | FIXING PLATE | Retains differential bearing preload |
| 4657301034 | SCREEN SHEET | Magnetic debris filter (fine mesh) |
| 4657301035 | SCREEN SHEET | Magnetic debris filter (coarse mesh) |
| 0636100803 | CAP SCREW | Fastener for bearing cap |
| 0631311009 | GROOVED STUD | Threaded stud for housing alignment |
Authorized ZF Distributor
We are a certified supplier of genuine ZF components.
