ZF 4660.103.806 OUTPUT for WG98 | OEM Genuine Part

Overview

The ZF 4660.103.806 OUTPUT for WG98 is a critical driveline component engineered to transfer torque from the transmission’s planetary gearset to the output flange. Positioned at the rear of the WG 98 series housing, this OEM genuine part ensures precise rotational alignment and load distribution under heavy-duty conditions. The SKU 4660.103.806 is machined from high-strength alloy steel to withstand continuous stress in construction and agricultural machinery. When installed alongside the 4660101020: TRANSMISSION HOUSING, it forms a sealed assembly that prevents contamination ingress and maintains hydraulic pressure integrity.

Symptoms of Failure

• Oil leaks at the rear seal area – Worn splines or bearing surfaces on the 4660.103.806 can cause seal misalignment, leading to visible fluid drips beneath the transmission bell housing.
• Intermittent gear slipping under load – A damaged output shaft reduces torque transfer efficiency, resulting in hesitation or complete loss of drive when climbing grades or hauling heavy loads.
• Vibration or whining noise during deceleration – Excessive play in the output bearing seat generates harmonic vibrations that resonate through the 4660301056: HOUSING II, often mistaken for differential issues.
• Difficulty engaging park or neutral – Internal spline wear prevents the output shaft from locking correctly, causing the vehicle to roll on inclines even when the transmission is in park.

Technical Specifications

Compatibility

This output shaft is specifically designed for the ZF WG 98 series, including models WG180, WG200, and WG210. It also fits select WG 98 variants used in Volvo BM, Case, and New Holland loaders. For proper installation, ensure the 0631306174: CYLINDRICAL PIN is correctly aligned with the housing dowel holes, and verify the 0769123894: TYPE PLATE matches your transmission serial number to avoid compatibility errors with older WG 98 revisions.

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