ZF 4699.360.126 CROWN WHEEL | OEM Genuine Part

Overview

The ZF 4699.360.126 CROWN WHEEL is a critical hypoid gear component designed for heavy-duty construction machinery transmissions. This OEM genuine part transfers rotational power from the pinion shaft to the differential assembly, enabling torque multiplication and final drive reduction. Located within the axle housing, the crown wheel (SKU: 4699.360.126) meshes directly with the pinion gear to convert high-speed transmission output into low-speed, high-torque wheel rotation. It is engineered for precise backlash tolerances and surface hardness to withstand extreme loads in excavators, wheel loaders, and graders. For optimal drivetrain integrity, this crown wheel is frequently installed alongside a 4699100080: BASIC GEARBOX to ensure matched gear geometry.

Symptoms of Failure

• Whining or howling noise during acceleration: Worn crown wheel teeth create irregular contact patterns, producing a distinct high-pitched sound that intensifies under load. This is a common search query for “ZF crown wheel noise symptoms.”
• Vibration in the driveline at low speeds: Excessive wear or pitting on the gear face causes harmonic vibrations felt through the chassis, often leading to “crown wheel vibration repair” searches.
• Metallic debris in transmission oil: Flaking or chipped teeth shed ferrous particles into the lubricant, detectable during oil changes. This symptom is frequently paired with “ZF axle gear failure signs.”
• Intermittent wheel lock-up or slipping: Severe tooth breakage can cause the crown wheel to skip engagement, resulting in sudden loss of traction or grinding sensations during turns.

Technical Specifications

Compatibility

This crown wheel is engineered for ZF heavy-duty transmissions commonly used in construction machinery. It is compatible with the following ZF transmission models:

• ZF WG180 series (6-speed powershift)
• ZF WG200 series (8-speed powershift)
• ZF WG210 series (high-torque variants)
• ZF 4WG-200 and 4WG-210 (4-speed versions)

When replacing this crown wheel, always inspect the 0634309122: SHAFT SEAL for wear, as oil leaks from the axle housing can accelerate gear degradation. Additionally, the 0634801038: SEALING RING and 0630000091: SHIM RING must be replaced to maintain proper preload and backlash settings during assembly.

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