ZF 2098.340.037 WASHER | OEM Genuine Part

Overview

The ZF 2098.340.037 WASHER is an OEM genuine shim component engineered for precise axial clearance control within ZF heavy-duty transmission differential assemblies. This hardened steel washer sits between the differential housing and the bearing race, ensuring correct preload on the DIFFERENTIAL unit. By maintaining exact spacing, the 2098.340.037 prevents gear train misalignment and reduces internal friction. This part is critical for load distribution in construction machinery transmissions, particularly when paired with a CROWN WHEEL and the DIFFERENTIAL assembly. The SKU 2098.340.037 is a factory-spec replacement that restores original tolerances without modification.

Symptoms of Failure

• Transmission oil seepage from differential housing: A worn 2098.340.037 washer allows excessive axial play, compromising the seal between the DIFFERENTIAL HOUSING and bearing carrier, leading to gradual fluid loss.
• Gear whine or grinding during turns: When the washer thickness degrades, the differential gear mesh depth changes, producing audible noise under load—especially in WG180 and WG200 series transmissions.
• Intermittent wheel slip under heavy load: Incorrect preload from a collapsed washer causes the differential to momentarily lose torque bias, resulting in power loss during excavation or grading operations.
• Vibration at the axle flange: Uneven washer wear creates lateral runout in the differential assembly, transmitting vibration through the driveline at operating speeds above 1500 RPM.

Technical Specifications

Compatibility

This washer is dimensionally validated for ZF WG180, WG200, and WG210 series power-shift transmissions used in wheel loaders, graders, and telehandlers. It also fits select ZF TC-Tronic torque converter transmissions where the differential assembly uses a 42.5 mm inner diameter bearing journal. Always verify the existing washer thickness before ordering, as the 2098.340.037 is a selective shim. For complete differential rebuilds, inspect the DIFFERENTIAL HOUSING and AXLE BEVEL GEAR for matching wear patterns.

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