Overview
The ZF 2099.310.102 P.T.O. Shaft is a critical power take-off drive component engineered for the WG100, WG130, and WG131 transmission series. This OEM genuine part transmits rotational energy from the transmission’s internal gearing to auxiliary hydraulic pumps or driven equipment, ensuring seamless torque delivery in demanding industrial applications. Positioned within the rear housing assembly, the SKU 2099.310.102 interfaces directly with the 2099109038: DIFFERENTIAL and the 2098309008: CROWN WHEEL to maintain driveline integrity. Precision-machined from high-strength alloy steel, this shaft resists torsional fatigue and wear, making it indispensable for continuous-duty operations.
Symptoms of Failure
- Intermittent P.T.O. engagement failure – When the shaft splines wear, the power take-off may fail to engage or disengage smoothly, causing erratic pump operation.
- Metallic grinding noise from transmission housing – Worn bearing surfaces on the 2099.310.102 shaft produce a distinct grinding sound during gear changes or under load.
- Oil seepage at the P.T.O. mounting flange – Degraded shaft seals allow transmission fluid to leak past the shaft bore, leaving visible drips beneath the vehicle.
- Vibration during P.T.O. activation – A bent or unbalanced shaft induces noticeable vibration that transfers to the chassis and attached equipment.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2099.310.102 |
| Overall Length | 245 mm |
| Spline Diameter | 32 mm (10-spline) |
| Material | Case-hardened alloy steel (20MnCr5) |
| Weight | 1.85 kg |
| OEM Reference | ZF 2099.310.102 |
| Surface Treatment | Phosphate-coated for corrosion resistance |
| Torque Capacity | 450 Nm (peak) |
Compatibility
This P.T.O. shaft is specifically engineered for ZF WG-series transmissions, including the WG100, WG130, and WG131 models. It also fits select variants of the WG180 and WG200 series when used with the correct 2098209016: DIFFERENTIAL assembly. For proper installation, verify that the 2095309059: DIFF.HOUSING is free of cracks or deformation. Always replace the shaft seal and thrust washer simultaneously to prevent premature failure.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2099109038 | DIFFERENTIAL | Distributes torque between drive axles |
| 2098309008 | CROWN WHEEL | Transfers power from pinion to differential |
| 2098209016 | DIFFERENTIAL | Alternate differential assembly for WG130 |
| 2095309059 | DIFF.HOUSING | Encloses differential gear set |
| 0631329086 | SPRING PIN | Secures shaft alignment within housing |
| 0730300820 | THRUST WASHER | Reduces axial play on shaft |
| 4482360002 | AXLE BEVEL GEAR | Drives axle shafts from differential |
| 2095309081 | DIFFERENTIAL AXLE | Connects differential to wheel hubs |
| 5838300811 | THRUST WASHER | Secondary axial load bearing |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Mesh with axle bevel gear for rotation |
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