ZF 2098.056.027 TRA 11 | OEM Genuine Part

Overview

The ZF 2098.056.027 TRA 11 is an OEM genuine internal component engineered for the final drive assembly of heavy-duty construction machinery transmissions. This part functions as a critical load-bearing element within the planetary gear set, ensuring precise torque distribution and rotational stability under extreme operating conditions. Specifically, it sits between the differential housing and the axle bevel gear, managing axial forces that occur during high-torque maneuvers. The SKU 2098.056.027 is manufactured to ZF’s exacting tolerances, guaranteeing seamless integration with existing drivetrain systems. When paired with a 2098109043 DIFFERENTIAL, this component optimizes power flow and reduces parasitic friction in wheel loaders and excavators.

Symptoms of Failure

• Intermittent gear slipping under load: When the 2098.056.027 wears, the transmission may momentarily lose engagement during uphill climbs or heavy digging, causing sudden RPM spikes.
• Metallic grinding noise from the axle housing: A high-pitched whine or grinding sound during low-speed turns indicates surface fatigue on this part, often accompanied by fine metal particles in the oil.
• Oil seepage near the final drive seal: Worn tolerances allow transmission fluid to bypass the seal, leaving visible drips on the axle tube after extended operation.
• Vibration in the driveline at 10-15 mph: Excessive axial play from a degraded 2098.056.027 creates a rhythmic shudder felt through the chassis, particularly when turning.

Technical Specifications

Compatibility

This OEM genuine part is designed for ZF WG-series transmissions commonly used in construction machinery. It directly fits the following models: WG180, WG200, WG211, and WG240. These transmissions are found in brands such as Liebherr, Volvo, and Caterpillar wheel loaders. For proper assembly, this part must be installed alongside a 2098209011 BEVEL GEAR SET and a 2098209016 DIFFERENTIAL to maintain gear mesh alignment. The 2095309059 DIFF.HOUSING provides the structural envelope for this assembly.

Related Components