Overview
The ZF 5838.117.030 REAR AXLE HOUS. is a critical structural component designed to encase and protect the differential assembly within heavy-duty construction machinery transmissions. This OEM genuine part serves as the rigid foundation that supports axle shafts and bearings, ensuring precise gear alignment under extreme torque loads. As a key element in the drivetrain, the housing (SKU: 5838.117.030) directly interfaces with the 5838109007: DIFFERENTIAL and the 2095209019: DIFFERENTIAL to maintain proper gear mesh. Its cast-iron construction withstands continuous vibration and shock loads common in excavators and wheel loaders.
Symptoms of Failure
- Persistent oil seepage around axle seals: A cracked or warped rear axle housing allows lubricant to escape, leading to low differential fluid levels and accelerated wear.
- Abnormal whining or grinding from the rear axle: When the housing loses structural integrity, misalignment occurs between the 0750117075: TAPER ROLLER BEARING and gear sets, producing metallic noise during operation.
- Uneven tire wear or driveline vibration: A distorted housing causes the axle shafts to run out of true, transferring vibration through the chassis and reducing tire life.
- Difficulty engaging or disengaging the differential lock: Housing deformation prevents the 0631329086: SPRING PIN from seating correctly, resulting in intermittent locking function.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 5838.117.030 |
| Material | Ductile Cast Iron (GJS-500-7) |
| Weight | 38.5 kg (84.9 lbs) |
| Overall Length | 620 mm |
| Mounting Bolt Pattern | 12 x M16 bolts on 280 mm PCD |
| OEM Reference | ZF 5838.117.030 |
| Max Operating Temperature | 120°C (248°F) |
Compatibility
This rear axle housing is engineered for ZF WG-series transmissions commonly deployed in construction machinery. It is directly compatible with the following ZF transmission models: WG180, WG200, WG211, and WG250. These units are found in articulated dump trucks, wheel loaders, and graders from manufacturers such as Volvo, Caterpillar, and Liebherr. Always verify the housing casting number against your existing unit before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838109007 | DIFFERENTIAL | Distributes torque between axle shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports axle shaft radial and axial loads |
| 2095209019 | DIFFERENTIAL | Provides speed differentiation between wheels |
| 0631329086 | SPRING PIN | Secures differential lock mechanism |
| 5838300817 | THRUST WASHER | Controls axial play in differential assembly |
| 5838300682 | DIFFERENTIAL AXLE | Transfers power from differential to wheel hubs |
| 5838300811 | THRUST WASHER | Reduces friction between rotating gears |
| 5841302064 | THRUST WASHER | Prevents gear end-face wear |
| 5838300137 | OUTER CLUTCH DISK | Provides friction surface for differential lock |
| 5838300138 | INNER CLUTCH DISK | Steel plate for clutch pack engagement |
