Overview
The ZF 2093.309.067 SUN GEAR SHAFT is a critical torque-transfer component positioned at the heart of the planetary gear set within WG100, WG130, and WG131 transmissions. This OEM genuine part acts as the central driving member, meshing directly with planetary pinions to convert hydraulic motor power into mechanical rotation. The SKU 2093.309.067 is precision-ground from case-hardened alloy steel to withstand high axial loads and continuous thermal cycling. When this shaft fatigues, it compromises the entire gear train’s alignment, often requiring simultaneous replacement of the 2093109001: DIFFERENTIAL to maintain proper backlash.
Symptoms of Failure
- Intermittent gear slipping under load: A worn sun gear shaft loses tooth engagement, causing the transmission to momentarily lose drive torque when climbing grades or hauling heavy loads.
- Metallic grinding noise from the planetary section: Pitting or spalling on the shaft’s splines produces a distinct low-frequency growl that intensifies during turns.
- Contaminated transmission fluid with metallic particles: Flakes of hardened steel in the oil filter or drain plug indicate the sun gear shaft’s surface is flaking, often accompanied by a failing 0750117075: TAPER ROLLER BEARING.
- Erratic shifting or delayed engagement: Excessive axial play from a worn shaft causes the clutch packs to engage unpredictably, triggering fault codes in electronic controllers.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2093.309.067 |
| Material | Case-hardened 20MnCr5 alloy steel |
| Overall Length | 185 mm (estimated) |
| Tooth Count | 14 spline teeth (internal) |
| Weight | 1.85 kg (4.08 lbs) |
| OEM Reference | ZF 2093.309.067 |
| Hardness | 58-62 HRC case depth 0.8 mm |
| Related: Spring Pin | 0631100223: SPRING PIN |
| Related: Thrust Washer | 0730300820: THRUST WASHER |
| Related: Axle Bevel Gear | 4482360002: AXLE BEVEL GEAR |
| Related: Differential Axle | 2097309085: DIFFERENTIAL AXLE |
| Related: Thrust Washer | 5838300811: THRUST WASHER |
| Related: Diff. Bevel Gear | 4482360001: DIFFERENTIAL BEVEL GEAR |
Compatibility
This sun gear shaft is engineered for ZF’s WG-series powershift transmissions. Confirmed fitment includes WG100, WG130, and WG131 models commonly used in telehandlers, wheel loaders, and agricultural tractors. It also serves as a direct replacement in certain WG180 and WG200 variants when the planetary carrier uses a 14-tooth sun gear interface. Always verify your transmission’s serial plate before ordering. For differential-side repairs, pair this shaft with the 2093209095: DIFFERENTIAL and the 2093309071: DIFF.HOUSING to ensure concentricity.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093109001 | DIFFERENTIAL | Distributes torque to axle shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports sun gear shaft radial load |
| 2093209095 | DIFFERENTIAL | Secondary torque split unit |
| 2093309071 | DIFF.HOUSING | Encloses differential gears |
| 0631100223 | SPRING PIN | Retains sun gear shaft in carrier |
| 0730300820 | THRUST WASHER | Controls axial end-play |
| 4482360002 | AXLE BEVEL GEAR | Transfers power to wheel hubs |
| 2097309085 | DIFFERENTIAL AXLE | Connects diff to final drive |
| 5838300811 | THRUST WASHER | Reduces friction on bevel gear |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Spider gear for torque splitting |
Frequently Asked Questions
Q: Can I replace just the sun gear shaft without removing the transmission?
A: In most WG100/WG130 installations, the sun gear shaft is accessible after removing the PTO cover and differential housing. However, we recommend pulling the unit to inspect the 0750117075: TAPER ROLLER BEARING simultaneously.
Q: How do I identify a genuine ZF 2093.309.067 versus a counterfeit?
A: Genuine shafts have a laser-etched part number on the spline face and a matte black oxide finish. Counterfeits often show grinding marks and weigh less than 1.8 kg.
Q: Does this part include the thrust washer or spring pin?
A: No, the sun gear shaft is sold individually. You must order 0730300820: THRUST WASHER and 0631100223: SPRING PIN separately for a complete rebuild.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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ZF 2093.309.067 SUN GEAR SHAFT – Shaft RFQ Support
PartsZF supports RFQ preparation for ZF 2093.309.067 SUN GEAR SHAFT where shaft identification and documentation review are required before ordering.
Part-Number Summary
Use ZF number 2093.309.067 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 | 2093.309.067 |
|---|---|
| Normalized SKU | 2093309067 |
| 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
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- 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
