Overview
The ZF 2095.317.023 REAR AXLE HOUSING is a structural core component in heavy-duty construction machinery drivelines. This OEM genuine part encloses the differential assembly and final drive gears, providing the rigid mounting surface for axle shafts and bearings. As the primary load-bearing shell, it channels torque from the transmission to the wheels while withstanding extreme torsional stress and shock loads from rough terrain. The SKU 2095.317.023 is precision-machined to maintain exact gear mesh alignment, ensuring that the 2095109020: DIFFERENTIAL and 2095209037: DIFFERENTIAL assemblies operate within factory tolerances. This housing also supports the 0750117075: TAPER ROLLER BEARING journals and integrates with the 2095309059: DIFF.HOUSING to form a sealed, lubricated chamber.
Symptoms of Failure
- Hypoid oil seepage at axle tube welds: Cracks or porosity in the housing casting cause gear oil to weep onto brake assemblies, creating a slipping hazard and accelerating bearing wear.
- Persistent gear whine under load: A deformed housing bore misaligns the ring and pinion gears, producing a low-frequency howl during acceleration or when turning.
- Axle shaft end-play exceeding 0.5 mm: Worn bearing seats inside the housing allow the axle to shift laterally, leading to uneven tire wear and differential carrier stress.
- Metallic debris in differential oil: Spalling from the housing’s internal bearing races contaminates the lubricant, often accompanied by a grinding sensation during deceleration.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2095.317.023 |
| Material | Spheroidal graphite cast iron (EN-GJS-500-7) |
| Dry Weight | 38.5 kg (84.9 lbs) |
| Overall Length | 720 mm |
| Bearing Bore Diameter | 110 mm (tapered roller seat) |
| OEM Reference | ZF 2095.317.023 (genuine) |
| Flange Bolt Pattern | 8 x M16 x 1.5 on 160 mm PCD |
Compatibility
This rear axle housing is engineered for ZF’s heavy-duty powershift transmission families used in wheel loaders, graders, and dump trucks. It is a direct fit for the WG180 and WG200 series, as well as the WG310 and WG350 models when paired with the correct differential carrier. The housing also accommodates the 4WG-200 and 6WG-310 transmissions found in Caterpillar, Volvo, and Komatsu equipment. Always verify the axle flange pattern and bearing preload specifications before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2095109020 | DIFFERENTIAL | Distributes torque between left and right wheels |
| 0750117075 | TAPER ROLLER BEARING | Supports axle shaft radial and axial loads |
| 2095209037 | DIFFERENTIAL | Secondary differential unit for tandem axles |
| 2095309059 | DIFF.HOUSING | Outer casing for differential gear set |
| 0631329086 | SPRING PIN | Secures differential lock shift fork |
| 0730300820 | THRUST WASHER | Controls axial clearance of side gears |
| 4482360002 | AXLE BEVEL GEAR | Transfers power from pinion to ring gear |
| 2095309081 | DIFFERENTIAL AXLE | Cross shaft for spider gears |
| 5838300811 | THRUST WASHER | Reduces friction on differential pinion gears |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Drives wheel hub through axle shaft |
