ZF 4699.173.006 STEERING GEAR for WG100/WG130/WG131 | OEM Genuine Part

Overview

The ZF 4699.173.006 STEERING GEAR is a precision-machined component engineered for the WG100, WG130, and WG131 transmission series. This OEM genuine part converts rotational input from the steering column into the lateral motion required to articulate the vehicle’s wheels, directly influencing maneuverability and load control. Positioned within the lower valve body assembly, the steering gear interfaces with the 4699101123: HOUSING to maintain hydraulic pressure integrity. The SKU 4699.173.006 is manufactured to ZF’s original tolerances, ensuring a direct fit without modification.

Symptoms of Failure

• Erratic steering response or “dead spots” – Worn gear teeth cause delayed or inconsistent wheel reaction, especially during low-speed turns.
• Hydraulic fluid seepage near the steering shaft – Deteriorated seals allow oil to bypass the 4699301208: HOUSING, leading to puddles under the transmission.
• Metallic grinding noise during articulation – Chipped or pitted gear surfaces produce a distinct scraping sound, indicating imminent failure.
• Increased steering effort or binding – Internal corrosion or debris jams the gear set, requiring excessive force to turn the wheel.

Technical Specifications

Compatibility

This steering gear is specifically validated for ZF WG100, WG130, and WG131 transmissions. It also serves as a direct replacement in certain WG180 and WG200 series units where the steering valve block shares the same mounting pattern. Always verify the housing condition using the 4699301017: BEARING COVER and the 4699301085: COVER to ensure proper sealing during installation.

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