Overview
The ZF 2094.117.008 REAR AXLE HOUS. is a structural core component engineered to encase the differential and final drive gearset within heavy-duty construction machinery transmissions. This OEM genuine part provides the rigid mounting surface for axle shafts and bearings, ensuring precise gear alignment under extreme torque loads. The SKU 2094.117.008 sits at the output end of the driveline, directly coupling to the main 2094101018: TRANSMISSION HOUSING to form a sealed assembly that withstands high-pressure lubrication and shock loading. Manufactured from high-strength cast iron, it maintains dimensional stability during continuous operation in excavators, wheel loaders, and graders.
Symptoms of Failure
- Hydraulic oil seepage at axle flange: Cracks or porosity in the housing casting allow gear oil to weep past the mating surface, leaving visible stains on the undercarriage. This often requires replacement of the housing and the 2094301030: GASKET.
- Excessive driveline backlash or clunking: Worn bearing bores within the rear axle housing permit differential carrier movement, causing a metallic knock during direction changes or load shifts.
- Persistent gear whine under load: Distortion of the housing from impact damage alters ring-and-pinion mesh patterns, producing a high-frequency noise that worsens as oil temperature rises.
- Bearing seizure or shaft scoring: Internal debris from a fractured housing can contaminate the lubricant, leading to rapid wear of the 0750111371: SHAFT SEAL and adjacent rotating components.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2094.117.008 |
| Material | GJS-500-7 Ductile Cast Iron |
| Dry Weight | 38.5 kg (84.9 lbs) |
| Overall Length | 620 mm |
| Flange Diameter | 280 mm |
| Bolt Hole Pattern | 12 x M14 on 240 mm PCD |
| OEM Reference | ZF 2094.117.008 |
| Max Operating Temperature | 120°C (248°F) |
Compatibility
This rear axle housing is designed for ZF WG-series powershift transmissions commonly deployed in construction equipment. It directly fits the WG180, WG200, and WG220 models. The housing interfaces with the 2094301069: HOUSING for the transfer case and the 2094298054: HOUSING for the parking brake assembly. When replacing, always install a new 0634303085: O-RING and 0631306670: CYLINDRICAL PIN to maintain alignment. The 2094301071: COVER seals the inspection port on this housing variant.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2094101018 | TRANSMISSION HOUSING | Main casing for gear clusters and clutches |
| 2094301069 | HOUSING | Transfer case housing for torque distribution |
| 2094298054 | HOUSING | Parking brake drum enclosure |
| 2094301071 | COVER | Inspection cover for axle housing access |
| 2094301030 | GASKET | Seals housing-to-axle joint |
| 0750111371 | SHAFT SEAL | Prevents oil leakage at output shaft |
| 0634303085 | O-RING | Hydraulic seal for fluid passages |
| 0631306670 | CYLINDRICAL PIN | Alignment dowel for housing assembly |
| 0636011356 | HEXAGON SCREW | Fastener for housing mounting |
| 4475280066 | SCREW PLUG | Seals oil drain or fill ports |
