ZF 4108.103.123 OUTPUT | OEM Genuine Part

Overview

The ZF 4108.103.123 OUTPUT is a critical OEM genuine component engineered for the final drive assembly in heavy-duty construction machinery transmissions. This part functions as the primary output shaft or hub, transferring rotational torque from the gear train directly to the driveline. Positioned at the rear of the transmission housing, it interfaces with the differential or transfer case to deliver power to the wheels. The SKU 4108.103.123 is precision-machined to ZF’s exacting tolerances, ensuring minimal backlash and optimal load distribution under extreme operating conditions. When paired with a robust TRANSMISSION HOUSING, this output component maintains structural integrity even during high-stress digging or lifting cycles.

Symptoms of Failure

• Oil leaks near the rear seal area: A worn 4108.103.123 output often causes fluid seepage past the shaft seal, leading to low transmission fluid levels and potential overheating.
• Gear slipping or delayed engagement: Excessive wear on the output splines or bearing journals results in intermittent power loss, particularly under load during uphill grading or heavy excavation.
• Vibration and driveline shudder: A damaged output shaft creates harmonic imbalance, producing noticeable shaking in the operator cab at speeds above 15 mph.
• Metallic grinding noise from the transmission bell housing: Worn output bearings generate a distinct scraping sound, indicating imminent catastrophic failure if not addressed immediately.

Technical Specifications

Compatibility

This OEM genuine output is specifically designed for ZF’s WG series powershift transmissions commonly used in wheel loaders, bulldozers, and telehandlers. It is a direct fit for the WG180, WG200, and WG210 models. The part also integrates with the HOUSING assembly in certain WG160 variants. For proper sealing, always replace the SCREW PLUG and verify the OIL LEVEL GAGE is functioning correctly during installation.

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