Overview
The ZF 2093.209.097 Sun Gear Shaft is a critical power-transfer component located within the planetary gear set of ZF WG-series transmissions. This OEM genuine part directly engages with the differential assembly to modulate torque distribution from the input shaft to the axle output. As a hardened steel shaft with precision-ground splines, it ensures concentric rotation under heavy load. The SKU 2093.209.097 is engineered to OEM tolerances, making it a direct replacement for worn units in WG100, WG130, and WG131 gearboxes. When paired with a compatible 2093109050: DIFFERENTIAL, this sun gear shaft maintains synchronized gear engagement across all forward and reverse ranges.
Symptoms of Failure
- Intermittent gear slipping under load: A worn sun gear shaft loses spline engagement, causing the transmission to momentarily lose drive torque when climbing grades or hauling heavy payloads.
- Metallic grinding noise from the planetary section: As the shaft surface degrades, it produces a distinct high-pitched whine or grinding sound that intensifies with vehicle speed, often misdiagnosed as a failing 0750117075: TAPER ROLLER BEARING.
- Oil contamination with metallic particles: Flaking material from the shaft’s hardened surface enters the transmission fluid, visible as silver glitter in the oil pan during routine maintenance.
- Delayed or harsh shifting between ranges: A damaged sun gear shaft prevents smooth power handoff, resulting in jarring engagement when transitioning from low to high gear sets.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 2093.209.097 |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Overall Length | 198.5 mm |
| Spline Major Diameter | 32.0 mm |
| Spline Count | 18 involute splines |
| Weight | 1.45 kg |
| OEM Reference | ZF 2093.209.097 |
| Surface Hardness | 58-62 HRC |
| Associated Parts | 0631100223: SPRING PIN, 0730300820: THRUST WASHER, 4482360002: AXLE BEVEL GEAR |
Compatibility
This sun gear shaft is specifically engineered for ZF WG-series powershift transmissions. It is a direct fit for the following models: WG100, WG130, and WG131. These transmissions are commonly found in agricultural tractors, construction loaders, and industrial material handlers. The shaft interfaces directly with the 2093209094: DIFFERENTIAL assembly and is housed within the 2093309078: DIFF.HOUSING. Always verify your transmission serial number against the OEM parts catalog before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093109050 | DIFFERENTIAL | Distributes torque between left and right axles |
| 0750117075 | TAPER ROLLER BEARING | Supports radial and axial loads on shaft ends |
| 2093209094 | DIFFERENTIAL | Secondary differential for multi-axle configurations |
| 2093309078 | DIFF.HOUSING | Encloses and supports differential gears |
| 0631100223 | SPRING PIN | Secures shaft alignment within planetary carrier |
| 0730300820 | THRUST WASHER | Controls axial play between gear faces |
| 4482360002 | AXLE BEVEL GEAR | Transfers power from differential to axle shaft |
| 2097309085 | DIFFERENTIAL AXLE | Output shaft connecting differential to wheel hub |
| 5838300811 | THRUST WASHER | Prevents gear-to-housing contact under load |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Primary gear set inside differential carrier |
Frequently Asked Questions
Q: Can the 2093.209.097 sun gear shaft be used in a WG180 transmission?
A: No. This shaft is dimensionally specific to WG100, WG130, and WG131 models. WG180 units require a longer shaft with different spline pitch. Always cross-reference your transmission model code before purchasing.
Q: What other parts should I replace when installing a new sun gear shaft?
A: It is strongly recommended to replace the 0750117075: TAPER ROLLER BEARING and all associated 0730300820: THRUST WASHER units simultaneously, as worn bearings accelerate shaft wear.
Q: How can I verify if my shaft is the OEM 2093.209.097 version?
A: Genuine ZF shafts have the part number laser-etched on the splined end. Counterfeit units often lack this marking or use painted numbers. Measure the overall length (198.5 mm) to confirm.
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ZF 2093.209.097 SUN GEAR SHAFT – Shaft RFQ Support
PartsZF supports RFQ preparation for ZF 2093.209.097 SUN GEAR SHAFT where shaft identification and documentation review are required before ordering.
Part-Number Summary
Use ZF number 2093.209.097 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 | 2093.209.097 |
|---|---|
| Normalized SKU | 2093209097 |
| 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.
Related Parts
- ZF 2094.110.011 P.T.O. SHAFT
- ZF 2094.110.014 P.T.O. SHAFT
- ZF 4642.303.002 OUTPUT SHAFT
- ZF 2093.110.011 P.T.O. SHAFT
- ZF 5838.300.106 INPUT SHAFT
