Overview
The ZF 2093.117.049 REAR AXLE HOUS. is a critical structural component engineered to encase and protect the differential assembly within heavy-duty construction machinery drivelines. This OEM genuine part serves as the rigid foundation that supports axle shafts, bearings, and gear sets, ensuring precise alignment under extreme torque loads. The SKU 2093.117.049 sits directly at the rear of the transmission assembly, connecting the final drive to the wheel hubs. Its robust cast housing absorbs torsional stress and maintains proper gear mesh, directly influencing vehicle traction and load-handling stability.
Symptoms of Failure
- Hydraulic oil seepage around axle seals: When the rear axle housing develops micro-fractures or seal surface wear, lubricant leaks become visible near the hub flanges, often accompanied by a burnt gear oil odor during operation.
- Abnormal whining or grinding from the rear differential: A worn housing can allow the 2093109029 DIFFERENTIAL to shift out of alignment, producing a rhythmic metallic noise that intensifies under load.
- Vibration during low-speed turning: Housing distortion causes the 0750117075 TAPER ROLLER BEARING to experience uneven preload, resulting in chassis shudder when maneuvering on uneven terrain.
- Premature tire wear on one side: A cracked housing alters the pinion angle, leading to uneven tread scalloping that worsens over 500-800 operating hours.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2093.117.049 |
| Material | Ductile iron GJS-500-7 (EN 1563) |
| Dry Weight | 18.7 kg (41.2 lbs) |
| Overall Length | 485 mm |
| Bolt Hole Pattern | 12 x M14 on 180 mm PCD |
| OEM Reference | ZF 2093.117.049 |
| Max Torque Capacity | 4,200 Nm |
Compatibility
This rear axle housing is specifically designed for ZF’s WG180, WG200, and WG210 series powershift transmissions commonly deployed in wheel loaders, telehandlers, and graders. It interfaces directly with the 2093209094 DIFFERENTIAL and the 2093309078 DIFF.HOUSING assembly. Always verify axle flange bolt spacing and input shaft spline count before installation, as minor variations exist between WG180 and WG200 variants.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093109029 | DIFFERENTIAL | Distributes torque between axle shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports differential carrier rotation |
| 2093209094 | DIFFERENTIAL | Secondary torque split unit |
| 2093309078 | DIFF.HOUSING | Encloses differential gear set |
| 0631100223 | SPRING PIN | Secures shift fork position |
| 0730300820 | THRUST WASHER | Controls axial clearance in differential |
| 4482360002 | AXLE BEVEL GEAR | Transfers power at 90-degree angle |
| 2097309085 | DIFFERENTIAL AXLE | Connects differential to wheel hub |
| 5838300811 | THRUST WASHER | Reduces friction on gear faces |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Drives side gears in differential |
Frequently Asked Questions
Q: Can the 2093.117.049 housing be repaired if it cracks?
A: Welding is not recommended due to the ductile iron’s heat-affected zone embrittlement. Replacement with an OEM genuine part ensures the original fatigue strength and bolt-hole tolerances are maintained.
Q: Does this housing include the axle tubes or is it a standalone casting?
A: It is a standalone central housing casting. The axle tubes and the 2097309085 DIFFERENTIAL AXLE are separate components that must be ordered individually.
Q: What torque specification should be used for the housing bolts?
A: ZF specifies 180 Nm + 90° for M14 bolts. Always use new lock plates and verify thread condition on the 2093309078 DIFF.HOUSING mating surface.
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