Overview
The ZF 2094.298.049 REAR AXLE HOUS. is a critical structural component designed to encase and protect the differential and final drive gears within ZF heavy-duty transmission assemblies. As an OEM genuine part, this housing provides the rigid mounting point for axle shafts and bearings, ensuring precise gear alignment under extreme torque loads common in construction machinery. The SKU 2094.298.049 specifically refers to the rear axle housing unit that integrates directly with the main 2094101011: TRANSMISSION HOUSING to form a sealed drivetrain enclosure. This component absorbs substantial torsional stress during operation, making its structural integrity vital for preventing driveline misalignment and premature gear wear.
Symptoms of Failure
- Visible oil seepage around axle tube welds: When the rear axle housing develops micro-fractures from fatigue stress, transmission fluid will weep through casting pores or weld joints, leaving dark residue on the housing exterior.
- Abnormal gear whine during deceleration: A worn housing bore allows differential bearings to shift, creating uneven gear mesh that produces a distinct low-frequency howl when the machine coasts downhill under load.
- Axle shaft end-play exceeding 0.5mm: Degraded housing bearing seats permit lateral movement of the axle shafts, causing erratic wheel speed sensor readings and traction control system faults in articulated loaders.
- Metallic debris in differential oil: Spalling housing surfaces shed ferrous particles into the lubricant, which can be detected during routine oil sampling as elevated iron content above 200 ppm.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2094.298.049 |
| Material | GJS-500-7 Ductile Cast Iron |
| Weight | 48.2 kg (106.3 lbs) |
| Overall Length | 785 mm |
| Axle Tube Diameter | 120 mm |
| Bolt Hole Pattern | 12x M16 on 180mm PCD |
| OEM Reference | ZF 2094.298.049 |
| Max Torque Capacity | 4,500 Nm |
Compatibility
This rear axle housing is engineered for ZF’s WG-series powershift transmissions used in off-highway construction equipment. Primary compatibility includes the WG180 and WG200 transmission models, which are commonly paired with 6-8 liter diesel engines in wheel loaders and telehandlers. The housing also fits select WG150 variants when used with the 2094301045: HOUSING adapter plate. For proper sealing, always install a new 0635460022: BALL check valve and 2094301044: COVER during replacement to prevent lubricant contamination.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2094101011 | TRANSMISSION HOUSING | Main gearbox enclosure |
| 2094301045 | HOUSING | Intermediate adapter housing |
| 0635460022 | BALL | Check valve for pressure relief |
| 2094301044 | COVER | Access port sealing cover |
| 0750111371 | SHAFT SEAL | Axle shaft oil seal |
| 0634303085 | O-RING | Housing joint seal |
| 2094301030 | GASKET | Flange sealing gasket |
| 0631306670 | CYLINDRICAL PIN | Alignment dowel pin |
| 0636011356 | HEXAGON SCREW | Mounting bolt M16x45 |
| 4475280060 | SCREW PLUG | Drain/fill port plug |
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