Overview
The ZF 2093.070.051 TRA 20 is a genuine OEM transmission component engineered for heavy-duty construction machinery. This part functions as a critical load-bearing element within the final drive assembly, specifically designed to manage torque distribution and rotational stability in ZF powershift transmissions. Positioned between the differential housing and the axle shaft, the 2093.070.051 ensures precise alignment of internal gears under extreme operational stress. The SKU 2093.070.051 is manufactured to ZF’s original specifications, guaranteeing a direct fit and long service life in demanding environments such as wheel loaders, graders, and compactors.
Symptoms of Failure
- Oil leaks near the axle flange: When the 2093.070.051 wears, degraded sealing surfaces allow transmission fluid to escape, leaving visible puddles under the machine after operation.
- Gear slipping during load cycles: A worn part causes intermittent loss of torque transfer, resulting in hesitation or grinding noises when the transmission shifts under heavy loads.
- Abnormal vibration in the driveline: Excessive play in this component leads to rhythmic shaking at speeds above 10 mph, often misdiagnosed as tire imbalance.
- Metallic debris in the oil pan: Advanced wear produces fine metal particles that contaminate the lubricant, accelerating damage to adjacent components like the 2093109056 DIFFERENTIAL.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2093.070.051 |
| Material | Case-hardened alloy steel (16MnCr5) |
| Weight | 2.85 kg (6.28 lbs) |
| Outer Diameter | 98.4 mm |
| Inner Diameter | 42.0 mm |
| Height | 34.2 mm |
| OEM Reference | ZF 2093.070.051 |
Compatibility
This genuine part is compatible with ZF WG180, WG200, and WG210 series powershift transmissions commonly used in construction machinery. It also fits select models of the ZF 4WG-200 and 6WG-200 drivelines. For optimal performance, always pair this component with a new 0750117075 TAPER ROLLER BEARING and inspect the 2093209094 DIFFERENTIAL for wear during installation. The 2093309078 DIFF.HOUSING must be free of cracks to ensure proper alignment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093109056 | DIFFERENTIAL | Distributes torque between axle shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports axial and radial loads |
| 2093209094 | DIFFERENTIAL | Secondary torque split assembly |
| 2093309078 | DIFF.HOUSING | Encloses differential gears |
| 0631100223 | SPRING PIN | Secures gear alignment |
| 0730300820 | THRUST WASHER | Reduces axial friction |
| 4482360002 | AXLE BEVEL GEAR | Transfers power to wheel hubs |
| 2097309085 | DIFFERENTIAL AXLE | Connects differential to final drive |
| 5838300811 | THRUST WASHER | Controls gear end-play |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Changes torque direction |
Frequently Asked Questions
Q: Can the 2093.070.051 be reused after a transmission overhaul?
A: No. ZF recommends replacing this part with a new OEM unit during any major rebuild, as microscopic wear compromises its load-bearing capacity.
Q: What tools are required to install this part?
A: A hydraulic press, torque wrench (calibrated to 180 Nm), and a bearing puller are necessary. Always replace the 0750117075 TAPER ROLLER BEARING simultaneously.
Q: How does this part differ from the 2093.070.052 variant?
A: The .051 uses a hardened steel alloy, while the .052 is made of nitrided steel for higher temperature resistance. Verify your transmission model before ordering.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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