ZF 0730.105.878 THRUST WASHER | OEM Genuine Part

Overview

The ZF 0730.105.878 THRUST WASHER is a precision-engineered OEM genuine component designed to manage axial loads and maintain critical clearances within the planetary gear sets of heavy-duty ZF transmissions. Positioned between rotating gears and stationary housings, this hardened steel washer prevents metal-on-metal contact, ensuring smooth power flow and extending the life of the entire assembly. The SKU 0730.105.878 is a direct replacement part that restores factory tolerances, making it essential for any rebuild of construction machinery transmissions.

Symptoms of Failure

• Transmission gear slipping under load: When the thrust washer wears thin, gear end-play increases, causing intermittent power loss during heavy digging or hauling.
• Metallic debris in transmission fluid: A failing 0730.105.878 sheds fine steel particles, which can clog filters and damage downstream components like the 4108101112: HOUSING.
• Abnormal whining or grinding noises: Worn thrust surfaces create uneven contact, producing audible high-pitched sounds from the gear train, especially during deceleration.
• Overheating in the planetary section: Excessive friction from a degraded washer generates localized heat, potentially warping the 4108201177: HOUSING.

Technical Specifications

Compatibility

This thrust washer is a standard fitment in ZF WG180, WG200, and WG250 series transmissions commonly used in wheel loaders, excavators, and telehandlers. It is also found in certain ZF Ecomat 4HP and 5HP models where planetary gear end-play adjustment is required. Always verify the part number 0730.105.878 against your transmission’s parts manual before installation.

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