Overview
The ZF 4108.103.124 OUTPUT is a critical OEM genuine component engineered for the final drive assembly in heavy-duty construction machinery transmissions. This part serves as the primary power take-off point, transferring rotational force from the transmission’s internal gear train to the driveline or auxiliary equipment. Designed to withstand extreme torque loads and thermal cycling, the 4108.103.124 OUTPUT ensures precise alignment and minimal power loss during operation. As a genuine ZF part, it guarantees exact fitment and metallurgical consistency, reducing the risk of premature wear in demanding environments like wheel loaders, graders, and excavators. The SKU 4108.103.124 is specifically machined to interface seamlessly with the 4108101128: TRANSMISSION HOUSING and the 4108201296: HOUSING, forming a sealed, high-torque-capable assembly.
Symptoms of Failure
When the ZF 4108.103.124 OUTPUT begins to degrade, operators typically notice three distinct failure indicators. First, output shaft oil seepage occurs around the seal interface, often visible as drips beneath the transmission housing after extended operation. Second, intermittent gear slipping under load becomes apparent during uphill travel or when engaging heavy hydraulic functions, caused by worn splines on the output component. Third, abnormal vibration at the driveline connection manifests as a low-frequency hum or shudder during acceleration, indicating bearing surface degradation. Fourth, erratic power delivery to auxiliary systems may occur, where the output fails to maintain consistent rotational speed, leading to jerky implement movements. These symptoms often coincide with failure of the 4475280018: SCREW PLUG or the 0501215601: OIL LEVEL GAGE, which should be inspected concurrently.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4108.103.124 |
| OEM Reference | ZF 4108.103.124 |
| Material | Case-hardened alloy steel (16MnCr5 equivalent) |
| Weight | 2.85 kg (6.28 lbs) |
| Output Spline | 14-tooth, 30° pressure angle, DIN 5480 |
| Max Torque Capacity | 1,200 Nm (885 ft-lbs) |
| Surface Treatment | Black oxide + phosphate coating |
| Bearing Journal Diameter | 45.00 mm ±0.013 mm |
Compatibility
This genuine ZF output component is designed for use in the following transmission families commonly found in construction machinery: ZF WG180, ZF WG200, and ZF WG210 series. It also fits select variants of the ZF Ergopower and ZF Ecomix transmissions used in concrete mixers and dump trucks. The 4108.103.124 is a direct replacement for earlier part numbers 4108.103.120 and 4108.103.122. Always verify compatibility by cross-referencing the transmission serial number plate. For complete assembly, this output integrates with the 4108108026: INTERM.GEARBOX and requires proper sealing via the 0501325471: SEALING RING.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4108101128 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4108201296 | HOUSING | Secondary housing for output shaft support |
| 4475280018 | SCREW PLUG | Seals oil passage in output area |
| 0501215601 | OIL LEVEL GAGE | Monitors transmission fluid level |
| 4108303034 | COVER | Protects output shaft from debris |
| 0636015120 | HEXAGON SCREW | Fastens output assembly to housing |
| 0636302015 | SCREW PLUG | Drain/fill plug for output cavity |
| 0501325471 | SEALING RING | Prevents oil leakage at output joint |
| 0730365280 | TYPE PLATE | Identification plate for transmission model |
| 4108108026 | INTERM.GEARBOX | Intermediate gearbox for torque splitting |
