Overview
The ZF 2095.056.019 REAR AXLE is a critical load-bearing and torque-transferring component within the final drive assembly of heavy-duty construction machinery. As an OEM genuine part, it serves as the primary structural link between the differential housing and the wheel hubs, ensuring precise alignment of the drivetrain under extreme loads. This axle shaft is engineered to withstand high torsional stress and shock loading common in excavators and wheel loaders. The SKU 2095.056.019 is the direct replacement for the original factory-installed unit, guaranteeing exact fitment and metallurgical integrity. It works in concert with the 2095109019: DIFFERENTIAL to distribute power evenly to the wheels.
Symptoms of Failure
- Persistent oil seepage at the wheel end: A worn rear axle shaft seal surface or a cracked axle housing can cause gear oil to leak past the hub, leaving visible puddles under the machine after shutdown.
- Intermittent driveline clunking during direction changes: Excessive spline wear on the axle shaft creates play between the axle and the differential side gear, producing a metallic knock when shifting from forward to reverse.
- Vibration under load at low speeds: A bent or fatigued rear axle causes rhythmic vibration that intensifies when the machine is under heavy digging or pushing loads, often misdiagnosed as a tire imbalance.
- Uneven tire wear patterns: When the axle shaft loses its concentricity, it forces the wheel hub to wobble, leading to scalloped wear on the inner tread edges of the drive tires.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number / SKU | 2095.056.019 |
| OEM Reference | ZF 2095.056.019 |
| Overall Length | ~ 680 mm |
| Shaft Diameter (bearing journal) | ~ 55 mm |
| Spline Count | 24 (internal/external) |
| Material | Forged alloy steel (case-hardened) |
| Weight | ~ 18.5 kg |
| Surface Treatment | Induction hardened bearing surfaces |
Compatibility
This genuine ZF rear axle is designed for integration into the following ZF transmission and axle series commonly deployed in construction machinery: WG180, WG200, AP400, and AP500 series. It is also a direct fit for certain ZF TC-Tronic driveline configurations used in mid-size wheel loaders and telehandlers. For a complete rebuild, this axle must be paired with the 0750117075: TAPER ROLLER BEARING which supports the shaft radially, and the 2095209037: DIFFERENTIAL which mates to the inner splines. The entire assembly is enclosed within the 2095309059: DIFF.HOUSING for protection against debris.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2095109019 | DIFFERENTIAL | Distributes torque between left and right axle shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports radial and axial loads on the axle shaft |
| 2095209037 | DIFFERENTIAL | Alternative differential assembly for high-torque applications |
| 2095309059 | DIFF.HOUSING | Encloses differential gears and axle shafts |
| 0631329086 | SPRING PIN | Secures differential pinion shaft within the housing |
| 0730300820 | THRUST WASHER | Reduces axial friction between differential gears |
| 4482360002 | AXLE BEVEL GEAR | Transfers power from pinion to differential ring gear |
| 2095309081 | DIFFERENTIAL AXLE | Cross shaft for differential spider gears |
| 5838300811 | THRUST WASHER | Side gear thrust washer for axial clearance control |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Side gear engaging with axle shaft splines |
