ZF 2099.317.031 REAR AXLE HOUS. | OEM Genuine Part

Overview

The ZF 2099.317.031 REAR AXLE HOUSING is a critical structural component in heavy-duty construction machinery drivelines. This OEM genuine part encloses the differential assembly and supports the axle shafts, ensuring precise gear alignment under extreme loads. As the primary load-bearing casing, it protects internal gears from contamination while maintaining proper lubrication channels. The SKU 2099.317.031 is engineered to withstand torsional stress and thermal expansion in demanding environments like wheel loaders and graders. When replacing this housing, technicians often pair it with a new 2099109045 DIFFERENTIAL to guarantee optimal gear mesh tolerances.

Symptoms of Failure

• Oil seepage at axle flange seals: Cracks or porosity in the housing cause differential oil to leak onto brake components, often mistaken for seal failure.
• Abnormal whining noise during turns: A warped housing misaligns the 0750117075 TAPER ROLLER BEARING, creating uneven gear contact patterns.
• Vibration under load: Fatigue fractures in the housing allow the 2093209094 DIFFERENTIAL to shift, causing driveline shudder at low RPM.
• Metal debris in gear oil: Internal spalling from housing distortion contaminates the lubricant, accelerating wear on the 2093309078 DIFF.HOUSING mating surfaces.

Technical Specifications

Compatibility

This rear axle housing is designed for ZF’s WG series powershift transmissions used in construction equipment. Primary applications include WG180, WG200, and WG250 series, commonly found in Volvo, Case, and Caterpillar wheel loaders. It also fits select ZF TC-Tronic drivelines with 10-ton to 18-ton axle ratings. Always verify the housing casting number against your existing unit, as variations exist for different track widths and brake configurations.

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