ZF 0501.227.951 STEERING GEAR for WG100/WG130/WG131

Overview

The ZF 0501.227.951 STEERING GEAR is a critical mechanical component responsible for translating rotational input from the steering column into precise lateral movement of the vehicle’s wheels. Within the ZF WG100, WG130, and WG131 transmission assemblies, this gear interfaces directly with the hydraulic control unit to ensure smooth directional changes under heavy load. As an OEM genuine part, SKU 0501.227.951 guarantees exact fitment and material integrity, reducing the risk of premature wear in high-cycle industrial applications. This steering gear is mounted within the main 4699101044: HOUSING and is sealed by the 4699301055: COVER, forming a pressurized unit that withstands constant torque fluctuations.

Symptoms of Failure

• Erratic steering response or “dead spots” – When the gear teeth wear unevenly, operators experience delayed or jerky wheel movement, especially during low-speed maneuvers.
• Hydraulic fluid seepage near the steering shaft – A worn gear can compromise the seal interface, leading to visible oil leaks around the 4699301111: HOUSING joint.
• Increased steering effort or stiffness – Internal pitting or galling on the gear surface creates friction that forces the hydraulic system to work harder, often accompanied by whining noises.
• Unusual clunking during directional changes – Backlash between the steering gear and mating shaft produces audible metallic impacts, signaling imminent failure.

Technical Specifications

Compatibility

This steering gear is engineered specifically for the ZF WG100, WG130, and WG131 transmission series. It also fits select variants of the WG180 and WG200 models where the steering control module shares the same spline geometry and mounting bolt pattern. Always verify the housing bore dimensions against your existing 4699301054: HOUSING COVER to ensure proper alignment. For WG200 applications, the gear may require pairing with a different shaft seal (refer to 0634309600: SHAFT SEAL).

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