Overview
The ZF 2099.317.034 REAR AXLE HOUSING is a critical structural component within the final drive assembly of heavy-duty construction machinery. This OEM genuine part serves as the rigid casing that encloses the differential gears, axle shafts, and bearings, ensuring precise alignment under extreme torque loads. The housing absorbs all vertical and lateral forces from the wheels, transmitting them to the vehicle frame. When replacing this unit, it is essential to inspect the internal 2099109045 DIFFERENTIAL and the 0750117075 TAPER ROLLER BEARING for wear, as these components directly interface with the housing bores. The SKU 2099.317.034 is precision-machined to OEM tolerances, guaranteeing a direct bolt-on fit for ZF drivelines.
Symptoms of Failure
- Oil seepage at axle flange: A cracked or warped housing gasket surface leads to gear oil leaking onto the brake drums, often noticed after extended operation.
- Abnormal whining or grinding noise: Worn bearing journals inside the housing cause the 2093209094 DIFFERENTIAL to misalign, producing a rhythmic metallic sound during turns.
- Vibration during load cycles: Fatigue cracks in the housing web allow flex, transferring vibration through the chassis at low speeds under heavy loads.
- Difficulty engaging parking brake: Distortion of the housing mounting points can misalign the brake drum, causing binding or incomplete lock-up.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2099.317.034 |
| Material | Ductile Iron GJS-500-7 |
| Dry Weight | 48.2 kg (106.3 lbs) |
| Overall Length | 720 mm |
| Bore Diameter (Bearing Seat) | 120 mm |
| OEM Reference | ZF 2099.317.034 |
| Bolt Pattern | 12 x M16 x 1.5 |
Compatibility
This rear axle housing is designed for ZF WG-series powershift transmissions used in wheel loaders and telehandlers. It is a direct fit for the ZF WG180 and ZF WG200 transmission models, as well as the ZF WG310 series when paired with the correct 2093309078 DIFF.HOUSING. The housing accommodates both standard and limited-slip differential configurations. Always verify the axle ratio stamp on the original housing before ordering to ensure match with your ring and pinion set.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2099109045 | DIFFERENTIAL | Distributes torque between left and right wheels |
| 0750117075 | TAPER ROLLER BEARING | Supports differential carrier rotation |
| 2093209094 | DIFFERENTIAL | Alternative differential assembly for WG200 |
| 2093309078 | DIFF.HOUSING | Outer cover for differential access |
| 0631100223 | SPRING PIN | Secures differential pinion shaft |
| 0730300820 | THRUST WASHER | Controls axial play in differential gears |
| 4482360002 | AXLE BEVEL GEAR | Drives the wheel hub from differential |
| 2097309085 | DIFFERENTIAL AXLE | Cross shaft for differential spider gears |
| 5838300811 | THRUST WASHER | Side gear thrust washer for differential |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Side gear for differential assembly |
