Overview
The ZF 4461.153.046 DIFFERENTIAL is a critical torque-distribution component located within the final drive assembly of heavy-duty construction machinery transmissions. As an OEM genuine part, it ensures balanced power delivery to the drive axles, reducing wheel slip and drivetrain stress. The SKU 4461.153.046 identifies this specific differential unit, which integrates directly with the transmission housing and axle system to manage rotational speed differences between wheels during turns. This part is precision-machined to ZF’s exacting tolerances, making it essential for maintaining operational efficiency in loaders, graders, and earthmoving equipment.
Symptoms of Failure
- Uneven tire wear or chirping during turns: A worn differential causes excessive internal friction, leading to abnormal tire scrubbing on hard surfaces.
- Low-speed grinding or whining noise: Damaged gear teeth or bearing surfaces produce a metallic grinding sound, especially when the vehicle is under load or turning.
- Oil seepage around the axle housing: Degraded seals allow gear oil to escape, often visible as wet spots near the differential carrier or the adjacent 4143101009: HOUSING.
- Intermittent loss of traction: A failing differential may fail to lock or distribute torque properly, causing one wheel to spin freely on loose terrain.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4461.153.046 |
| OEM Reference | ZF 4461.153.046 |
| Material | Case-hardened alloy steel |
| Weight | Approx. 18.5 kg (40.8 lbs) |
| Outer Diameter | 280 mm |
| Mounting Bolt Pattern | 8 x M12 on 200 mm PCD |
| Seal Surface Finish | Ra 0.8 µm |
Compatibility
This differential is designed for ZF’s WG series powershift transmissions, specifically the WG180, WG200, and WG210 models used in construction machinery. It also fits select variants of the WG150 and WG250 series when paired with the correct 4143301025: HOUSING. Always verify axle configuration and gear ratio before installation. The unit requires a fresh 0634313603: O-RING and a properly torqued 4475280018: SCREW PLUG to seal the fill port during reassembly.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4143101009 | HOUSING | Encloses differential carrier assembly |
| 4143301025 | HOUSING | Outer axle housing for final drive |
| 0634313603 | O-RING | Seals differential cover joint |
| 4475280018 | SCREW PLUG | Closes oil fill/drain port |
| 0501342341 | SUPPORT RING | Positions bearing race in housing |
| 4143298457 | SEAL KIT | Contains all gaskets and seals for overhaul |
| 0634313591 | O-RING | Seals input shaft bore |
| 0636101068 | CAP SCREW | Fastens differential to carrier |
| 4143221013 | THROTTLE VALVE | Controls hydraulic pressure to clutch pack |
| 0634304484 | O-RING | Seals throttle valve bore |
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