Overview
The ZF 5838.073.009 REAR AXLE is a precision-machined, OEM genuine component engineered for the final drive assembly in heavy-duty construction machinery. This part serves as the primary torque-transfer interface between the differential unit and the wheel hubs, ensuring reliable power delivery under extreme loads. As a critical element within ZF’s modular axle architecture, the SKU 5838.073.009 directly interfaces with the 5838109009: DIFFERENTIAL and the 2093209023: DIFFERENTIAL to distribute rotational force evenly. Manufactured from high-tensile alloy steel, this rear axle is designed to withstand continuous shock loading in excavators, wheel loaders, and graders.
Symptoms of Failure
- Persistent oil seepage at the axle seal interface: When the 5838.073.009 rear axle wears, lubricant often escapes past the seal, leaving visible drips on the housing. This is a common long-tail search query for “ZF rear axle oil leak repair.”
- Audible clunking during directional changes: A worn axle can produce a metallic knock when shifting from forward to reverse, indicating excessive clearance between the axle shaft and the 0750117075: TAPER ROLLER BEARING.
- Vibration at low wheel speeds: Degraded splines on the axle cause uneven rotation, leading to a shudder felt through the cab floor. This symptom often prompts searches for “construction axle vibration troubleshooting.”
- Reduced traction under load: If the axle fails to transmit torque effectively, the machine may struggle on inclines or in soft terrain, especially when paired with a failing 5838300626: DIFFERENTIAL HOUSING.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 5838.073.009 |
| Material | High-tensile alloy steel (induction-hardened) |
| Overall Length | 720 mm (estimated) |
| Outer Diameter (bearing journal) | 85 mm (estimated) |
| Spline Count | 24 involute splines |
| Weight | 18.5 kg (40.8 lbs) |
| OEM Reference | ZF 5838.073.009 |
| Related Components | 0631329088: SPRING PIN, 5838300811: THRUST WASHER, 5838300721: AXLE BEVEL GEAR, 5838300633: AXLE, 5838300753: THRUST WASHER, 5838300818: THRUST WASHER |
Compatibility
This OEM genuine rear axle is designed for integration into ZF’s WG180, WG200, and WG250 series transmissions commonly found in construction machinery. It is also compatible with select APL-300 and APL-400 axle assemblies used in telescopic handlers and compact loaders. The 5838.073.009 replaces earlier revisions in ZF’s modular rear drive systems, ensuring direct bolt-on fitment when paired with the correct 5838300626: DIFFERENTIAL HOUSING. Always verify axle spline count and overall length against your existing unit before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838109009 | DIFFERENTIAL | Distributes torque between left and right wheels |
| 0750117075 | TAPER ROLLER BEARING | Supports axle shaft radial and axial loads |
| 2093209023 | DIFFERENTIAL | Alternative differential assembly for high-torque variants |
| 5838300626 | DIFFERENTIAL HOUSING | Encloses and aligns differential gears |
| 0631329088 | SPRING PIN | Secures axle components against rotation |
| 5838300811 | THRUST WASHER | Controls axial play in the differential |
| 5838300721 | AXLE BEVEL GEAR | Transfers power from pinion to axle shaft |
| 5838300633 | AXLE | Secondary axle shaft for tandem configurations |
| 5838300753 | THRUST WASHER | Prevents gear face wear under load |
| 5838300818 | THRUST WASHER | Compensates for thermal expansion in the axle |
