ZF 4108.103.125 OUTPUT | OEM Genuine Part

Overview

The ZF 4108.103.125 OUTPUT (SKU: 4108.103.125) is a critical driveline component engineered for the final drive assembly in heavy-duty construction machinery transmissions. This OEM genuine part serves as the primary output hub, transferring rotational torque from the planetary gear set directly to the axle or differential. Designed to withstand extreme axial and radial loads, the output shaft ensures precise alignment within the transmission housing. When integrated with the 4108101140: HOUSING, it forms a sealed, lubricated chamber that protects internal gears from contamination. The 4108.103.125 is machined from high-tensile alloy steel to resist fatigue in demanding earthmoving and material handling applications.

Symptoms of Failure

• Output shaft oil leaks near the seal surface: Worn splines or a scored shaft journal allow transmission fluid to bypass the seal, leaving visible drips under the vehicle.
• Gear slipping or delayed engagement under load: A fatigued output shaft can cause misalignment in the planetary carrier, leading to intermittent power loss during excavation or lifting.
• Excessive driveline vibration at low speeds: Bearing wear on the output shaft creates radial play, producing a rhythmic thumping noise that worsens with torque application.
• Metallic debris in the transmission oil pan: Spalling on the shaft’s hardened surface generates fine steel particles, often detected during routine fluid changes.

Technical Specifications

Compatibility

This output shaft is specifically designed for ZF’s WG-series powershift transmissions used in wheel loaders, graders, and telehandlers. It is a direct fit for the WG180 and WG200 series, as well as the WG150 and WG210 variants. The 4108.103.125 interfaces directly with the 0501211694: MOTOR in hydrostatic drive configurations and requires the 0501314793: COVER to seal the output bore. For proper shaft retention, the 0501314799: BUSH must be installed at the bearing support point. Always verify transmission serial numbers before ordering.

Related Components