Overview
This OEM genuine ZF 2093.078.043 T 7226 L is a critical internal component designed for heavy-duty construction machinery transmissions. Specifically, this part functions as a precision-machined differential housing or carrier component within the final drive assembly, ensuring proper torque distribution to the axle shafts. The SKU 2093.078.043 is engineered to withstand extreme loads and thermal stress common in wheel loaders and graders. When paired with a DIFFERENTIAL, it maintains gear alignment and reduces drivetrain vibration.
Symptoms of Failure
- Oil leaks around the axle housing: Worn sealing surfaces on the 2093.078.043 allow transmission fluid to escape, leading to low lubricant levels and overheating.
- Gear slipping under load: A fatigued housing can cause misalignment of the TAPER ROLLER BEARING, resulting in intermittent power loss during excavation.
- Grinding noise during turns: Excessive wear on the differential carrier creates metal-on-metal contact, producing a distinct grinding sound when maneuvering.
- Vibration in the driveline: Cracks in the housing amplify drivetrain oscillations, felt through the operator seat at speeds above 15 mph.
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 2093.078.043 |
| Material | Ductile cast iron (GJS-500-7) |
| Weight | 8.2 kg (18.1 lbs) |
| Outer Diameter | 210 mm |
| Bolt Hole Pattern | 12 x M12 on 180 mm PCD |
| OEM Reference | ZF T 7226 L series |
| Hardness | HB 180-220 |
Compatibility
This component is designed for ZF WG180, WG200, and WG211 series transmissions commonly found in construction machinery such as Volvo L90/L120 loaders and Caterpillar 924/930 graders. It also fits select ZF T 7226 L transfer cases. For complete axle assembly, verify compatibility with the DIFFERENTIAL and DIFF.HOUSING to ensure proper bolt alignment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093109024 | DIFFERENTIAL | Distributes torque between left and right wheels |
| 0750117075 | TAPER ROLLER BEARING | Supports axial and radial loads on the differential carrier |
| 2093209095 | DIFFERENTIAL | Secondary differential unit for tandem axle configurations |
| 2093309071 | DIFF.HOUSING | Encloses the differential gear set |
| 0631100223 | SPRING PIN | Secures shift fork to the selector shaft |
| 0730300820 | THRUST WASHER | Reduces friction between rotating gears and housing |
| 4482360002 | AXLE BEVEL GEAR | Transfers power from the differential to the axle shaft |
| 2097309085 | DIFFERENTIAL AXLE | Connects differential side gears to wheel hubs |
| 5838300811 | THRUST WASHER | Prevents axial play in the differential pinion shaft |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Provides final gear reduction within the differential case |
Frequently Asked Questions
Q: Can the 2093.078.043 be installed without replacing the taper roller bearing?
A: It is strongly recommended to replace the TAPER ROLLER BEARING simultaneously, as worn bearings can damage the new housing within 50 operating hours.
Q: What is the typical lifespan of this differential housing in a wheel loader?
A: Under normal operating conditions with proper lubrication, the OEM genuine 2093.078.043 lasts approximately 8,000–10,000 hours before showing signs of fatigue.
Q: Does this part fit ZF WG180 transmissions from 2015?
A: Yes, the 2093.078.043 is backward compatible with WG180 models manufactured after 2010, but always verify bolt pattern alignment with the DIFF.HOUSING before assembly.
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