Overview
The ZF 2094.317.004 REAR AXLE HOUS. is a critical structural component designed to enclose and protect the differential and final drive gearset within ZF heavy-duty transmissions. This OEM genuine part serves as the primary load-bearing shell for the rear axle assembly, ensuring precise alignment of ring and pinion gears under extreme torque loads. The SKU 2094.317.004 is machined from high-strength cast iron to withstand the harsh operating conditions found in construction machinery, including excavators, wheel loaders, and graders. It integrates directly with the 2094101011: TRANSMISSION HOUSING to form a sealed driveline unit, while the 2094301045: HOUSING provides additional structural support for the input shaft assembly.
Symptoms of Failure
- Oil leakage at the axle housing flange: A worn 2094.317.004 often develops cracks or porosity, causing gear oil to seep past the mating surface. This is commonly searched as “ZF rear axle housing oil leak” or “axle housing seal failure.”
- Excessive drivetrain noise under load: When the housing distorts or its bearing bores wear, gear mesh patterns shift, producing a whining or grinding sound during acceleration. Technicians frequently look for “ZF transmission whining noise rear axle.”
- Contaminated lubricant with metal debris: Structural fatigue in the housing can allow internal components to rub against the casting, generating metallic particles in the oil. This symptom is often described as “metal shavings in ZF axle oil.”
- Vibration during operation: A cracked or misaligned housing causes the differential carrier to shift, leading to noticeable vibration through the chassis. This is a classic sign of “rear axle housing failure construction equipment.”
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 2094.317.004 |
| Material | High-grade cast iron (GGG-40) |
| Weight | 38.5 kg (84.9 lbs) |
| Overall Length | 620 mm |
| Flange Diameter | 280 mm |
| Bolt Hole Pattern | 12 x M16 on 240 mm PCD |
| OEM Reference | ZF 2094.317.004 |
| Surface Treatment | Phosphated and painted |
Compatibility
This rear axle housing is engineered for ZF’s WG series powershift transmissions commonly used in off-highway equipment. It is a direct fit for the WG180 and WG200 models, which are found in articulated dump trucks and wheel loaders. The housing also supports the WG150 and WG250 variants when paired with the correct 2094301044: COVER and 0635460022: BALL for the shift mechanism. Always verify the transmission serial number before installation, as minor casting revisions exist for different torque ratings.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2094101011 | TRANSMISSION HOUSING | Main structural casing for gear clusters |
| 2094301045 | HOUSING | Input shaft support housing |
| 0635460022 | BALL | Steel ball for shift detent mechanism |
| 2094301044 | COVER | Sealing cover for axle housing access port |
| 0750111371 | SHAFT SEAL | Prevents oil leakage at output shaft |
| 0634303085 | O-RING | Seals housing flange joint |
| 2094301030 | GASKET | Paper gasket for cover plate |
| 0631306670 | CYLINDRICAL PIN | Alignment pin for housing assembly |
| 0636011356 | HEXAGON SCREW | M16 bolt for housing fastening |
| 4475280060 | SCREW PLUG | Magnetic drain plug for oil sump |
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