Overview
The ZF 2099.117.041 REAR AXLE HOUSING is a structural core component within the final drive assembly of heavy-duty construction machinery transmissions. It serves as the rigid enclosure that supports the differential carrier, axle shafts, and final reduction gears, ensuring precise alignment under extreme torque loads. As an OEM genuine part, SKU 2099.117.041 guarantees factory tolerances for sealing surfaces and bearing bores, directly impacting drivetrain longevity. This housing integrates with the 2099109042 DIFFERENTIAL and the 2093309078 DIFF.HOUSING to form a sealed assembly that distributes power to the wheels.
Symptoms of Failure
- Hypoid oil seepage at axle tube seals: Cracks or porosity in the housing casting allow gear oil to weep past the flange gasket, leaving visible drips on the axle beam.
- Persistent gear whine under load: A worn housing bore causes misalignment of the 0750117075 TAPER ROLLER BEARING, generating a low-frequency hum during acceleration or turning.
- Premature differential bearing failure: Distortion of the housing saddle creates uneven preload on the 2093209094 DIFFERENTIAL, leading to brinelling and metallic debris in the lubricant.
- Axle shaft end-play exceeding 0.5 mm: Worn housing shoulders allow axial movement, causing intermittent clunking when shifting between forward and reverse.
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 2099.117.041 |
| Material | GJS-500-7 Ductile Iron (EN 1563) |
| Dry Weight | 38.2 kg (84.2 lbs) |
| Overall Length | 620 mm |
| Bearing Bore Diameter | 110 mm (H7 tolerance) |
| Flange Bolt Pattern | 12 x M16 x 1.5 on 180 mm PCD |
| Max Torque Capacity | 12,500 Nm |
| OEM Reference | ZF 2099.117.041 |
Compatibility
This rear axle housing is engineered for ZF’s heavy-duty powershift transmission series used in wheel loaders, graders, and dump trucks. It is a direct fit for the WG180 and WG200 series, as well as the WG310 planetary axle configuration. The housing accepts the 2097309085 DIFFERENTIAL AXLE and supports the 4482360002 AXLE BEVEL GEAR set. Always verify casting numbers against your existing unit before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2099109042 | DIFFERENTIAL | Distributes torque between axle shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports differential carrier rotation |
| 2093209094 | DIFFERENTIAL | Spider gear assembly for speed differentiation |
| 2093309078 | DIFF.HOUSING | Outer casing for differential gears |
| 0631100223 | SPRING PIN | Locks differential pinion shaft |
| 0730300820 | THRUST WASHER | Controls axial clearance of side gears |
| 4482360002 | AXLE BEVEL GEAR | Transfers power from ring gear to axle shaft |
| 2097309085 | DIFFERENTIAL AXLE | Cross shaft for planetary differential |
| 5838300811 | THRUST WASHER | Reduces friction on differential pinion |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Mates with pinion gear in differential |
