Overview
The ZF 2093.309.064 SUN GEAR SHAFT is a critical internal component engineered for the WG100, WG130, and WG131 transmission series. This genuine OEM part functions as the central drive element within the planetary gear set, transferring torque directly from the input shaft to the sun gear assembly. Precision-machined from high-strength alloy steel, the 2093.309.064 ensures smooth power distribution and minimal backlash during heavy-load operations. When paired with a compatible 2093109020: DIFFERENTIAL, this sun gear shaft maintains optimal gear mesh alignment, reducing wear on adjacent components.
Symptoms of Failure
- Whining or grinding noise during acceleration: A worn sun gear shaft causes uneven tooth contact, producing a distinct metallic whine that intensifies under load.
- Intermittent gear slipping in forward ranges: As the shaft splines degrade, the sun gear loses positive engagement, leading to momentary power loss and erratic shifting.
- Metallic debris in transmission fluid: Flaking or pitting on the shaft surface contaminates the oil, often visible as silver particles on the dipstick or drain plug.
- Vibration through the driveline at highway speeds: A bent or fatigued shaft creates rotational imbalance, transmitting noticeable shudder to the chassis.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number (SKU) | 2093.309.064 |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Overall Length | 185 mm (approx.) |
| Spline Diameter | 32 mm |
| Weight | 1.45 kg |
| OEM Reference | ZF 2093.309.064 |
| Hardness | 58-62 HRC (surface) |
Compatibility
This genuine ZF sun gear shaft is specifically designed for the following transmission models: WG100, WG130, and WG131. It is also compatible with certain variants of the WG180 and WG200 series when used in conjunction with the correct 0750117075: TAPER ROLLER BEARING and 2093209096: DIFFERENTIAL. Always verify your transmission housing code before installation; the shaft interfaces directly with the 2093309073: DIFF.HOUSING to ensure proper axial clearance.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093109020 | DIFFERENTIAL | Distributes torque between axles |
| 0750117075 | TAPER ROLLER BEARING | Supports sun gear shaft radial load |
| 2093209096 | DIFFERENTIAL | Secondary differential for planetary gearset |
| 2093309073 | DIFF.HOUSING | Encloses differential and shaft assembly |
| 0631100223 | SPRING PIN | Secures shaft to carrier |
| 0730300820 | THRUST WASHER | Controls axial end-play |
| 4482360002 | AXLE BEVEL GEAR | Transfers power to axle shafts |
| 2097309085 | DIFFERENTIAL AXLE | Drives wheel hubs |
| 5838300811 | THRUST WASHER | Reduces friction on gear faces |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Meshes with axle bevel gear |
Frequently Asked Questions
Q: Can I use the 2093.309.064 sun gear shaft in a WG180 transmission?
A: Yes, but only if the transmission is equipped with the correct differential housing (part 2093309073) and taper roller bearing (0750117075). Always cross-reference your transmission serial number with ZF specifications.
Q: What is the expected service life of this shaft under normal operating conditions?
A: With proper lubrication and no contamination, the case-hardened steel shaft typically lasts 300,000 to 500,000 km. Replace immediately if any pitting or spline wear is detected during overhaul.
Q: Do I need to replace the thrust washer (0730300820) at the same time?
A: Yes. The thrust washer and spring pin (0631100223) should always be renewed when installing a new sun gear shaft to prevent premature wear and ensure correct axial clearance.
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Phone: +86 158 2286 3467 |
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ZF 2093.309.064 SUN GEAR SHAFT – Shaft RFQ Support
PartsZF supports RFQ preparation for ZF 2093.309.064 SUN GEAR SHAFT where shaft identification and documentation review are required before ordering.
Part-Number Summary
Use ZF number 2093.309.064 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 | 2093.309.064 |
|---|---|
| Normalized SKU | 2093309064 |
| 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
