Overview
The ZF 2098.117.020 REAR AXLE HOUS. is a critical structural component within the final drive assembly of heavy-duty construction machinery. This OEM genuine part encases the differential and final reduction gears, providing the rigid mounting points necessary for torque transfer from the transmission to the wheels. The housing protects internal components from debris and maintains precise gear alignment under extreme loads. The SKU 2098.117.020 is specifically engineered to withstand the high stress and vibration common in earthmoving equipment, ensuring long-term durability in demanding environments.
Symptoms of Failure
When the ZF 2098.117.020 rear axle housing begins to fail, operators may notice several distinct warning signs. Oil leaks around the axle flange or differential mounting surface are a primary indicator, often caused by hairline cracks or warping of the housing. Another common symptom is abnormal gear noise (whining or grinding) during turns, which suggests the housing has lost its dimensional integrity, misaligning the 2098309011: CROWN WHEEL and pinion. Operators may also experience vibration in the driveline under load, particularly when accelerating or climbing, as the housing fails to dampen torsional forces. Finally, difficulty maintaining wheel alignment or uneven tire wear can point to a bent or cracked axle housing, a condition that accelerates wear on the 2098109042: DIFFERENTIAL assembly.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 2098.117.020 |
| Material | High-tensile ductile iron (GJS-500-7) |
| Weight | 38.5 kg (84.9 lbs) |
| Overall Length | 720 mm |
| Flange Diameter | 280 mm |
| Bolt Pattern | 12 x M16 x 1.5 |
| OEM Reference | ZF 2098.117.020 |
| Max Torque Capacity | 12,000 Nm |
Compatibility
This rear axle housing is designed for integration with ZF’s heavy-duty transmission series commonly deployed in construction machinery. It is a direct fit for the ZF WG180 and ZF WG200 transmission models, as well as the ZF WG160 series used in wheel loaders and graders. The housing also supports the ZF WG310 series in certain articulated dump truck applications. When replacing this housing, it is essential to inspect the 2099209001: DIFFERENTIAL and the 2098309010: DIFFERENTIAL HOUSING for matching wear patterns to ensure proper gear mesh and bearing preload.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2098109042 | DIFFERENTIAL | Distributes torque between left and right wheels |
| 2098309011 | CROWN WHEEL | Transfers power from pinion to differential |
| 2099209001 | DIFFERENTIAL | Alternative differential assembly for WG200 |
| 2098309010 | DIFFERENTIAL HOUSING | Encloses differential gears and bearings |
| 2098309009 | DIFFERENTIAL HOUSING | Compatible housing for WG180 series |
| 2098309031 | AXLE BEVEL GEAR | Transfers power at 90-degree angle in axle |
| 2098309030 | AXLE BEVEL GEAR | Matched bevel gear for final drive |
| 2098309032 | DIFFERENTIAL BEVEL GEAR | Spider gear for differential action |
| 12883200682 | THRUST WASHER | Reduces axial friction in differential |
| 0635332059 | BALL BEARING | Supports rotating axle shafts |
