Overview
The ZF 2093.117.009 REAR AXLE HOUS. is a structural core component within the final drive assembly of heavy-duty construction machinery transmissions. This OEM genuine housing encloses the differential gear set and axle shafts, providing the rigid mounting point for bearings and seals that transfer torque from the driveshaft to the wheels. As the primary load-bearing casing, it absorbs immense torsional stress and shock loads during excavation, grading, and material handling operations. The SKU 2093.117.009 is precision-machined to maintain exact gear mesh alignment, ensuring long service life in demanding environments.
Symptoms of Failure
- Hypoid gear oil seepage at axle tube seals – Cracks or porosity in the housing casting allow lubricant to escape, leading to low oil levels and accelerated gear wear. This is a common long-tail search query for “ZF rear axle housing oil leak repair.”
- Abnormal whining or grinding noise during turns – Distortion of the housing bore causes misalignment of the 2093109005: DIFFERENTIAL and 0750117075: TAPER ROLLER BEARING, creating uneven tooth contact patterns.
- Vibration under load with wheel hop – A warped housing mounting face prevents proper preload on the 2093209096: DIFFERENTIAL assembly, causing driveline shudder during acceleration.
- Metal debris in differential oil – Internal cracking of the housing releases casting fragments that contaminate the 2093309073: DIFF.HOUSING cavity, requiring immediate replacement to prevent total gear failure.
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 2093.117.009 |
| Material | Ductile iron GJS-500-7 (EN 1563) |
| Weight | 38.5 kg (84.9 lbs) |
| Overall Length | 620 mm |
| Mounting Bolt Pattern | 12x M16 x 1.5 on 280 mm PCD |
| Bearing Bore Diameter | 120 mm H7 |
| Max Operating Temperature | 120°C (248°F) |
| OEM Reference | ZF 2093.117.009 |
Compatibility
This rear axle housing is engineered for ZF WG-series powershift transmissions commonly used in wheel loaders, graders, and telehandlers. It is a direct fit for the following models: WG180, WG200, WG210, and WG240 series. The housing also supports retrofit applications in select ZF Ergopower and ZF Ecolife drivelines when paired with the correct 2093109005: DIFFERENTIAL carrier. Always verify axle ratio and housing bolt pattern against your machine’s service manual before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093109005 | DIFFERENTIAL | Distributes torque between left and right axle shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports differential carrier and absorbs radial/axial loads |
| 2093209096 | DIFFERENTIAL | Secondary differential unit for multi-axle configurations |
| 2093309073 | DIFF.HOUSING | Encloses differential gears and maintains lubrication |
| 0631100223 | SPRING PIN | Secures differential pinion shaft in housing bore |
| 0730300820 | THRUST WASHER | Controls axial clearance of differential side gears |
| 4482360002 | AXLE BEVEL GEAR | Transfers power from ring gear to axle shafts |
| 2097309085 | DIFFERENTIAL AXLE | Connects differential side gears to wheel hubs |
| 5838300811 | THRUST WASHER | Reduces friction between differential case and gears |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Provides final gear reduction within differential assembly |
Frequently Asked Questions
Q: Can the ZF 2093.117.009 housing be welded if cracked?
A: Welding is not recommended due to the ductile iron’s heat-affected zone embrittlement. Replacement with an OEM genuine housing is the only reliable repair to maintain gear alignment and prevent catastrophic failure.
Q: What is the typical service life of this rear axle housing?
A: Under normal operating conditions with proper lubrication, the housing can last 8,000–12,000 hours. However, shock loads from impact or chronic oil starvation can cause premature cracking.
Q: Does this part include the bearing cups and seals?
A: No, the housing is sold as a bare casting. You must order the 0750117075: TAPER ROLLER BEARING and associated oil seals separately for a complete rebuild.
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