Overview
The ZF 2095.078.002 T 7140 is an OEM genuine gear component engineered for the differential assembly within heavy-duty construction machinery transmissions. This precision-machined part sits directly within the final drive housing, where it meshes with the ring gear to transfer torque from the axle shafts to the wheels. As a critical element of the powertrain, the SKU 2095.078.002 ensures proper load distribution and smooth rotation under extreme operating conditions. When installed alongside the 2095109020: DIFFERENTIAL, it forms the core of the axle assembly, enabling reliable power delivery in wheel loaders and excavators.
Symptoms of Failure
When the ZF 2095.078.002 T 7140 wears out, operators typically notice these specific failure indicators:
- Persistent gear whine or howling from the axle housing – A high-pitched noise during acceleration or deceleration signals excessive backlash or tooth surface wear on this gear.
- Intermittent drive loss under load – The machine may momentarily lose traction or hesitate when climbing grades, indicating that the gear is skipping teeth due to fatigue.
- Metallic debris in the transmission fluid – Flakes or slivers found during oil changes point directly to spalling on the gear’s contact surfaces.
- Vibration through the chassis at low speeds – Uneven wear on this component creates a rhythmic shudder that worsens as the gear rotates.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2095.078.002 |
| OEM Reference | ZF T 7140 |
| Material | Case-hardened alloy steel (20MnCr5) |
| Weight | 4.2 kg (9.26 lbs) |
| Outer Diameter | 180 mm |
| Tooth Count | 14 (spiral bevel) |
| Heat Treatment | Carburized & quenched to HRC 58-62 |
Compatibility
This genuine ZF gear is designed for integration into the differential section of the following transmission families: WG180, WG200, WG210, and WG240. It is also a direct fit for certain Ergopower and Ecomix series axles used in concrete mixers and telehandlers. For proper assembly, always pair this part with the 0750117075: TAPER ROLLER BEARING to support axial loads, and verify the 2095209037: DIFFERENTIAL housing clearance before installation. The 2095309059: DIFF.HOUSING must also be inspected for cracks to prevent misalignment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2095109020 | DIFFERENTIAL | Distributes torque between axle shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports radial and axial gear loads |
| 2095209037 | DIFFERENTIAL | Houses planetary gear set |
| 2095309059 | DIFF.HOUSING | Encloses differential assembly |
| 0631329086 | SPRING PIN | Secures gear alignment |
| 0730300820 | THRUST WASHER | Reduces axial friction |
| 4482360002 | AXLE BEVEL GEAR | Transfers power to wheel hubs |
| 2095309081 | DIFFERENTIAL AXLE | Connects gear to wheel shaft |
| 5838300811 | THRUST WASHER | Prevents gear end-play |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Drives side gears |
