ZF 4699.172.006 STEERING PARTS | OEM Genuine Part

Overview

The ZF 4699.172.006 STEERING PARTS unit is a precision-engineered hydraulic control component designed for integration within ZF’s heavy-duty powershift transmission assemblies. This OEM genuine part regulates directional oil flow to the steering clutch packs, ensuring smooth articulation in construction machinery such as wheel loaders and graders. The SKU 4699.172.006 functions as a spool or valve assembly within the transmission control system, directly interfacing with the 4699101080: HOUSING to maintain consistent hydraulic pressure. Its failure compromises steering response and overall drivetrain reliability.

Symptoms of Failure

• Erratic steering response or delayed engagement – When the 4699.172.006 wears internally, operators experience hesitation or jerky movements during turns, especially under load.
• External hydraulic oil seepage – Degraded seals or bore wear cause fluid to escape around the 0634306309: O-RING interface, leaving visible drips on the transmission housing.
• Increased operating temperature in steering circuit – Internal leakage forces the pump to work harder, generating excess heat that can be detected via dashboard gauges or infrared scanning.
• Unusual whining or chattering noise during articulation – Metal-to-metal contact from worn spool surfaces produces audible feedback, indicating imminent failure of the steering assembly.

Technical Specifications

Compatibility

This steering part is primarily compatible with ZF WG180 and WG200 series powershift transmissions, commonly found in articulated dump trucks and large wheel loaders. It also fits select WG150 and WG250 variants where the steering control valve shares the same bore dimensions. Always verify the 0501329881: HOUSING COVER and 0630513065: SNAP RING condition during replacement to ensure proper retention of the 4699.172.006 within its bore.

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