Overview
The ZF 4644.353.054 AXLE is a precision-engineered differential component designed for the WG200 series transmission. This OEM genuine part serves as the central load-bearing shaft within the axle housing, transferring rotational torque from the driveshaft to the wheel ends while maintaining precise gear alignment. As a critical element of the final drive assembly, the 4644.353.054 axle ensures smooth power delivery and durability under heavy-duty industrial applications. The SKU 4644.353.054 is manufactured to ZF’s exacting tolerances, making it a direct replacement for worn or damaged axles in WG200 transmissions. This component interfaces directly with the TRANSMISSION HOUSING (4644101216) and the TRANSMISSION HOUSING (4644301223) to form a sealed, lubricated environment for gear operation.
Symptoms of Failure
- Axle whining or grinding noise during turns: A worn 4644.353.054 axle often produces a distinct metallic whine or grinding sound, especially when the vehicle is cornering. This indicates bearing surface degradation or shaft fatigue.
- Oil leaks near the wheel hub seal: When the axle shaft wears, it can damage the sealing surface, leading to differential oil seeping past the hub seal. This symptom is frequently searched as “ZF WG200 axle oil leak” or “axle seal failure WG200.”
- Vibration at highway speeds: A bent or unbalanced 4644.353.054 axle causes noticeable driveline vibration, particularly between 40-60 mph. This worsens over time as the shaft loses concentricity.
- Intermittent gear slipping under load: Excessive axle play can cause the differential gears to lose proper mesh, resulting in momentary power loss or clunking when accelerating from a stop.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (SKU) | 4644.353.054 |
| Product Type | Axle Shaft (Differential) |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Overall Length | Approx. 620 mm |
| Shaft Diameter (bearing journal) | 45 mm |
| Spline Count | 28 involute splines |
| Weight | 4.8 kg (10.6 lbs) |
| OEM Reference | ZF 4644.353.054 |
| Surface Finish | Ground and polished |
Compatibility
The 4644.353.054 axle is specifically engineered for the ZF WG200 series transmissions, including models WG180, WG200, and WG210. It is a direct fit for all WG200 variants produced after 2010. This axle is not interchangeable with older WG series or ZF Ecolife units. When replacing this component, always inspect the mating TYPE PLATE (0730365067) for correct model identification and verify the GROOVED STUD (0631311009) torque specifications to prevent assembly errors.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4644101216 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 4644301223 | TRANSMISSION HOUSING | Secondary housing for differential section |
| 0730365067 | TYPE PLATE | Identification plate with model and serial number |
| 0631311009 | GROOVED STUD | Fastener for housing alignment and torque retention |
| 4644303060 | COVER PLATE | Seals the axle access opening |
| 4644303061 | COVER PLATE | Alternate cover plate for different housing variants |
| 0634306525 | O-RING | Seals between axle and housing |
| 0636305026 | SCREW PLUG | Drain/fill plug for axle lubricant |
| 4644301279 | SCREEN SHEET | Filter mesh for oil circulation |
| 4644301088 | SEALING CAP | Protective cap for axle end |
