Overview
The ZF 2093.317.026 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, identified by SKU 2093.317.026, serves as the rigid foundation that supports axle shafts and bearings while maintaining precise gear alignment under extreme loads. Located at the rear of the drivetrain, it ensures torque is properly transferred from the transmission to the wheels, making it indispensable for loaders, graders, and earthmoving equipment operating in demanding environments.
Symptoms of Failure
- Oil seepage around axle seals: A cracked or warped housing often leads to lubricant escaping, leaving visible puddles under parked equipment and causing low differential fluid levels.
- Unusual grinding or whining noises during turns: When the housing distorts, the 2093109002: DIFFERENTIAL and 0750117075: TAPER ROLLER BEARING lose proper alignment, generating metallic chatter.
- Excessive backlash in the driveline: A fatigued housing allows the 2093209095: DIFFERENTIAL to shift, creating a noticeable clunk when accelerating or decelerating.
- Visible cracks or deformation near mounting points: Impact damage or stress fractures compromise structural integrity, leading to sudden component failure during operation.
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 2093.317.026 |
| Material | Ductile cast iron (GGG-50) |
| Weight | 48.5 kg (107 lbs) |
| Overall Length | 620 mm |
| Mounting Bolt Pattern | 12 x M16 bolts on 280 mm PCD |
| Axle Tube Diameter | 120 mm |
| Compatible Differential | 2093109002 |
| Bearing Type | 0750117075 Taper Roller Bearing |
Compatibility
This rear axle housing is engineered for ZF WG-series transmissions commonly found in construction machinery. It directly fits the WG180 and WG200 models, which power articulated dump trucks, wheel loaders, and telehandlers. The housing also integrates with the WG150 and WG250 series when paired with the correct 2093309071: DIFF.HOUSING adapter kit. Always verify axle tube length and bolt pattern against your specific vehicle chassis before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093109002 | DIFFERENTIAL | Distributes torque between axle shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports differential carrier rotation |
| 2093209095 | DIFFERENTIAL | Secondary gear set for speed reduction |
| 2093309071 | DIFF.HOUSING | Encloses differential gears |
| 0631100223 | SPRING PIN | Secures differential pinion shaft |
| 0730300820 | THRUST WASHER | Reduces axial friction in differential |
| 4482360002 | AXLE BEVEL GEAR | Transfers power to wheel hubs |
| 2097309085 | DIFFERENTIAL AXLE | Connects differential to wheel shafts |
| 5838300811 | THRUST WASHER | Prevents gear end-play |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Meshes with pinion for final drive |
Frequently Asked Questions
Q: Can I use this housing with a non-ZF differential?
A: No. The 2093.317.026 is precision-machined exclusively for ZF differentials like the 2093109002. Aftermarket units will not align with the bearing seats or bolt pattern.
Q: How do I confirm the housing is not cracked before installation?
A: Perform a magnetic particle inspection (MPI) on all stress points, especially around the axle tube welds and mounting flanges. Any hairline fractures require immediate replacement.
Q: What torque specification applies to the mounting bolts?
A: Use 280 Nm (207 ft-lbs) for M16 grade 10.9 bolts, applied in a cross-pattern sequence. Always replace the 0631100223 SPRING PIN during reassembly to prevent fastener loosening.
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