ZF 2099.117.045 REAR AXLE HOUS. | OEM Genuine Part

Overview

The ZF 2099.117.045 REAR AXLE HOUS. is a structural core component within the final drive assembly of heavy-duty construction machinery transmissions. This OEM genuine housing encloses the differential gear set and axle shafts, providing the rigid mounting point for the wheel ends and absorbing the high torque loads generated during operation. As the primary load-bearing shell, it ensures precise alignment of internal rotating elements. The SKU 2099.117.045 is a direct replacement for the factory-installed unit, engineered to maintain the exact tolerances required for ZF driveline longevity.

Symptoms of Failure

• Oil seepage at axle seal interfaces: A cracked or warped housing face causes lubricant to escape, leading to low oil levels and accelerated wear on internal components like the 2099109042: DIFFERENTIAL.
• Abnormal whining or grinding from the rear axle: Distortion of the housing bore misaligns the 0750117075: TAPER ROLLER BEARING, creating metal-on-metal contact and audible noise during load cycles.
• Vibration during low-speed maneuvering: A fatigued housing can no longer support the 2093209094: DIFFERENTIAL assembly, causing driveline shudder that worsens under heavy loads.
• Visible cracks or impact damage near mounting bosses: Physical stress from off-road operation can fracture the housing, requiring immediate replacement to prevent catastrophic axle failure.

Technical Specifications

Compatibility

This rear axle housing is designed for integration with ZF’s heavy-duty powershift transmission series. It is a direct fit for the WG180 and WG200 models commonly found in wheel loaders and graders. It also supports the WG160 and WG210 series when used with the correct 2093309078: DIFF.HOUSING adapter kit. Always verify axle ratio compatibility before installation.

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