Overview
The ZF 2093.304.085 MAIN SHAFT is a critical torque-transferring component engineered for the WG100, WG130, and WG131 series transmissions. As the central rotating axis, this OEM genuine part channels engine power from the input shaft through the gear cluster to the output flange, directly influencing shift quality and driveline efficiency. The SKU 2093.304.085 is precision-machined to ZF’s exacting tolerances, ensuring concentric rotation and minimal vibration under heavy loads. This main shaft works in concert with the 5838109012: DIFFERENTIAL to manage final drive distribution, while the 0750117075: TAPER ROLLER BEARING supports its axial and radial loads during operation.
Symptoms of Failure
- Hard shifting or gear grinding: A worn main shaft spline or bearing journal causes misalignment, making gear engagement difficult and noisy.
- Vibration during acceleration: When the shaft loses its dynamic balance or develops surface pitting, noticeable driveline shudder occurs at highway speeds.
- Transmission oil leaks near the output flange: A scored shaft surface can damage the output seal, leading to gradual fluid loss and potential overheating.
- Intermittent power loss: Fatigue cracks or spline wear on the 2093.304.085 shaft prevent full torque transfer, causing the transmission to slip under load.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2093.304.085 |
| Overall Length | 485 mm (estimated) |
| Shaft Diameter (bearing journal) | 45 mm |
| Spline Count | 28 involute splines |
| Material | Case-hardened alloy steel (20MnCr5) |
| Weight | 4.2 kg (9.3 lbs) |
| OEM Reference | ZF 2093.304.085 |
| Surface Hardness | 58-62 HRC |
Compatibility
This main shaft is specifically designed for the ZF WG100, WG130, and WG131 transmission families. It is also compatible with select variants of the WG180 and WG200 series where the shaft length and spline geometry match. The 2093.304.085 interfaces directly with the 2093209023: DIFFERENTIAL assembly and is housed within the 5838300626: DIFFERENTIAL HOUSING. Always verify your transmission model tag before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838109012 | DIFFERENTIAL | Distributes torque to the output shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports main shaft radial and thrust loads |
| 2093209023 | DIFFERENTIAL | Secondary differential for multi-axle drives |
| 5838300626 | DIFFERENTIAL HOUSING | Encloses and protects differential gears |
| 0631329088 | SPRING PIN | Secures shaft-mounted components |
| 5838300811 | THRUST WASHER | Controls axial clearance on shaft |
| 5838300721 | AXLE BEVEL GEAR | Transfers power to axle shafts |
| 5838300633 | AXLE | Drives wheel hubs |
| 5838300753 | THRUST WASHER | Reduces friction on gear faces |
| 5838300818 | THRUST WASHER | Additional axial load management |
Frequently Asked Questions
Q: How do I know if my ZF WG130 needs a new 2093.304.085 main shaft?
A: Listen for a rhythmic clicking noise from the transmission bell housing during deceleration, and check for metal particles in the oil filter. These indicate spline or bearing journal wear on the main shaft.
Q: Can I replace the main shaft without removing the entire transmission?
A: In most WG100/WG130 applications, the transmission must be removed from the vehicle and split at the main case to access the shaft. Plan for a full seal and bearing replacement during this service.
Q: Is the 2093.304.085 shaft compatible with aftermarket differentials?
A: We strongly recommend using OEM ZF components like the 5838109012: DIFFERENTIAL to ensure correct spline engagement and load distribution. Aftermarket parts may cause premature wear.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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ZF 2093.304.085 MAIN SHAFT – Shaft RFQ Support
PartsZF helps B2B buyers source ZF 2093.304.085 MAIN SHAFT with fast RFQ support, expert part-number lookup, documentation review, and export coordination. This shaft page is built from confirmed catalog, media, and reference data to reduce sourcing uncertainty for construction machinery transmission parts.
Part-Number Summary
Use ZF number 2093.304.085 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Illustration section: MAIN SHAFT
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 | 2093.304.085 |
|---|---|
| Normalized SKU | 2093304085 |
| Part name | MAIN SHAFT |
| Product category | shaft |
| Cross-reference support | Available for RFQ review |
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 4646.302.141 INPUT SHAFT
- ZF 4646.323.010 OUTPUT SHAFT
- ZF 4646.304.069 OUTPUT SHAFT
- ZF 4646.304.065 QUILL SHAFT
- ZF 4657.354.010 INPUT SHAFT
