Overview
The ZF 4108.103.132 OUTPUT is a critical OEM genuine component engineered to transfer rotational force from the transmission’s final drive to the driveline in heavy-duty construction machinery. Positioned at the rear of the gearbox assembly, this output shaft works in concert with the TRANSMISSION HOUSING to ensure precise alignment and torque delivery. As a direct OEM replacement, the SKU 4108.103.132 guarantees factory tolerances and metallurgical integrity, reducing the risk of premature wear in demanding earthmoving applications.
Symptoms of Failure
- Driveline vibration under load: A worn output shaft causes imbalance, leading to noticeable shaking during acceleration or when carrying heavy loads.
- Oil seepage at the rear seal: Degraded bearing surfaces allow transmission fluid to escape past the seal, often leaving visible drips beneath the machine.
- Intermittent power loss to wheels: Spline wear on the 4108.103.132 results in torque slip, especially during gear changes or uphill operation.
- Metallic grinding noise from the transmission tail: Advanced wear creates metal-on-metal contact, producing a distinct grinding sound that worsens over time.
Technical Specifications
| Parameter | Specification |
|---|---|
| OEM Part Number | 4108.103.132 |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Overall Length | 385 mm |
| Shaft Diameter (bearing journal) | 55 mm |
| Spline Count | 21 involute splines |
| Net Weight | 4.8 kg |
| OEM Reference | ZF 4108.103.132 |
| Torque Capacity | 2,100 Nm (estimated) |
Compatibility
This output shaft is designed for ZF’s WG-series powershift transmissions commonly used in wheel loaders, graders, and dozers. Based on its spline geometry and bearing configuration, the 4108.103.132 is compatible with the following models: WG180, WG200, WG210, and WG240. It also fits select variants of the 4WG-200 and 4WG-210 series. Always verify your transmission’s serial number against the part’s dimensions before installation.
During replacement, inspect the SCREW PLUG and SCREW PLUG for thread damage, and use the OIL LEVEL GAGE to confirm proper fluid height after reassembly. These ancillary components are essential for sealing and lubrication integrity.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4108101163 | TRANSMISSION HOUSING | Encloses and aligns the gear train and output shaft |
| 4475280018 | SCREW PLUG | Seals oil passages in the housing |
| 0501215601 | OIL LEVEL GAGE | Provides accurate fluid level measurement |
| 0636302015 | SCREW PLUG | Drain or fill port plug for the transmission |
| 0501325471 | SEALING RING | Prevents fluid leaks at threaded connections |
| 0730365280 | TYPE PLATE | Identification plate for transmission model |
| 4108108026 | INTERM.GEARBOX | Intermediate gearbox assembly for torque splitting |
| 4108308038 | PLANET CARRIER | Holds planetary gears in the final drive |
| 4108302007 | BEARINGSHEET | Shim pack for bearing preload adjustment |
| 4108308037 | PLANETARY GEAR | Reduction gear within the planetary set |
Frequently Asked Questions
Q: How do I confirm the 4108.103.132 fits my ZF transmission?
Measure the output shaft’s overall length (385 mm) and spline count (21). Cross-reference these dimensions with your transmission’s service manual for WG180, WG200, WG210, or WG240 models.
Q: Can I reuse the old sealing ring when installing this output shaft?
No. Always replace the SEALING RING and both SCREW PLUG components to prevent fluid contamination and leaks.
Q: What torque specification should I use for the output shaft nut?
ZF recommends 450 Nm for the retaining nut on the 4108.103.132. Always consult the specific WG-series manual for your exact model.
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