Overview
The ZF 2093.209.093 SUN GEAR SHAFT is a critical power transmission component engineered for the WG100, WG130, and WG131 series transmissions. This OEM genuine part serves as the central rotating hub that transfers torque from the planetary gear set to the differential assembly. Positioned directly within the transmission’s final drive housing, the sun gear shaft meshes with planetary gears to achieve the necessary speed reduction and torque multiplication. The SKU 2093.209.093 is precision-machined to ZF’s exacting tolerances, ensuring seamless integration with the 2093109028: DIFFERENTIAL and the 2093209094: DIFFERENTIAL units. Without this shaft, the transmission cannot deliver power to the wheels, making it a vital component for heavy-duty industrial applications.
Symptoms of Failure
- Gear Slipping Under Load: When the sun gear shaft’s splines wear, the transmission may slip or lose torque during acceleration, especially in WG130 models.
- Metallic Grinding Noises: A worn shaft produces a distinct grinding or whining sound from the transmission housing, indicating damaged gear teeth or bearing surfaces.
- Oil Leaks Near the Final Drive: A cracked or misaligned sun gear shaft can compromise the seal between the transmission and the 2093309078: DIFF.HOUSING, leading to fluid seepage.
- Vibration During Operation: Excessive play in the shaft causes driveline vibration, often felt through the chassis at highway speeds.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2093.209.093 |
| Material | Case-hardened alloy steel (20MnCr5) |
| Overall Length | 285 mm |
| Spline Diameter | 38 mm (major diameter) |
| Weight | 2.4 kg |
| Heat Treatment | Carburized & tempered to HRC 58-62 |
| OEM Reference | ZF 2093.209.093 |
| Related Part: Spring Pin | 0631100223: SPRING PIN |
| Related Part: Thrust Washer | 0730300820: THRUST WASHER |
| Related Part: Axle Bevel Gear | 4482360002: AXLE BEVEL GEAR |
| Related Part: Differential Axle | 2097309085: DIFFERENTIAL AXLE |
| Related Part: Thrust Washer | 5838300811: THRUST WASHER |
| Related Part: Diff. Bevel Gear | 4482360001: DIFFERENTIAL BEVEL GEAR |
Compatibility
This sun gear shaft is engineered for ZF’s WG-series transmissions, specifically the WG100, WG130, and WG131 models. These transmissions are commonly found in agricultural tractors, construction loaders, and municipal utility vehicles. The shaft interfaces directly with the 0750117075: TAPER ROLLER BEARING to support axial and radial loads. While primarily designed for WG100/WG130/WG131, it may also be retrofitted into earlier WG80 variants with minor modifications. Always verify your transmission’s serial number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093109028 | DIFFERENTIAL | Distributes torque to axle shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports sun gear shaft rotation |
| 2093209094 | DIFFERENTIAL | Secondary differential unit |
| 2093309078 | DIFF.HOUSING | Encloses differential gears |
| 0631100223 | SPRING PIN | Secures shaft alignment |
| 0730300820 | THRUST WASHER | Reduces axial friction |
| 4482360002 | AXLE BEVEL GEAR | Transfers power to wheels |
| 2097309085 | DIFFERENTIAL AXLE | Connects differential to wheel hub |
| 5838300811 | THRUST WASHER | Controls gear end-play |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Primary gear in differential set |
Frequently Asked Questions
Q: How do I know if my ZF WG130 needs a new sun gear shaft?
A: Listen for a rhythmic clicking or grinding noise during low-speed turns, and check for metal particles in the transmission oil. These are classic indicators of a worn 2093.209.093 shaft.
Q: Can I replace the sun gear shaft without removing the entire transmission?
A: In most WG100/WG131 models, the shaft can be accessed by removing the differential housing cover. However, we recommend consulting your service manual, as the 0750117075: TAPER ROLLER BEARING may require special pullers.
Q: Is the 2093.209.093 compatible with aftermarket differentials?
A: This OEM shaft is designed to work exclusively with genuine ZF differentials like the 2093109028: DIFFERENTIAL. Aftermarket units may have different spline counts or tolerances.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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ZF 2093.209.093 SUN GEAR SHAFT – Shaft RFQ Support
For ZF 2093.209.093 SUN GEAR SHAFT, send the part number, removed-part photos, and application context so PartsZF can prepare a focused sourcing response.
Part-Number Summary
Use ZF number 2093.209.093 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Illustration section: DIFFERENTIAL
Cross Reference Support
If you have an OEM number, old supplier number, or visible marking, include it with your RFQ so PartsZF can compare it with the available records.
Specification Snapshot
| ZF part number | 2093.209.093 |
|---|---|
| Normalized SKU | 2093209093 |
| Part name | SUN GEAR SHAFT |
| Product category | shaft |
| RFQ support | Part-number lookup and documentation review |
| Media support | Product photo or diagram review when available |
Image and Documentation Notes
Current product media status: fallback. Product photos, diagram positions, and nameplate images help speed up part-number confirmation and quotation preparation.
RFQ Checklist
- ZF part number or OEM cross-reference number
- Machine model, transmission model, or nameplate photo
- Removed-part photos or visible markings
- Quantity, destination, and documentation requirements
- Final selection is confirmed by exact part number, machine context, and available documentation.
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- ZF 5838.300.106 INPUT SHAFT
