Overview
The ZF 2093.104.010 MAIN SHAFT is a critical torque-transmitting component engineered for the WG100, WG130, and WG131 series transmissions. This OEM genuine part serves as the central rotating axis within the gear cluster, transferring engine power from the input shaft to the output flange. Precision-ground splines on this shaft ensure positive engagement with mating gears, while the hardened alloy steel core withstands high torsional loads. The SKU 2093.104.010 is machined to exact ZF factory tolerances, making it a direct replacement for worn or damaged shafts. When installed, this main shaft interfaces directly with the 2093101016: HOUSING and the 2093301030: TRANSMISSION HOUSING, forming the structural backbone of the gear train assembly.
Symptoms of Failure
When the ZF 2093.104.010 main shaft begins to degrade, operators will notice distinct operational issues. Gear slipping under load is the most common symptom, as worn splines lose their grip on the sliding gears. A second failure mode is persistent transmission whining or growling during acceleration, indicating bearing journal wear on the shaft surface. Third, difficulty engaging gears—particularly when shifting from neutral to drive—points to shaft deflection or spline deformation. Finally, metal debris in the transmission fluid during routine oil changes confirms internal fretting of the shaft material. These symptoms often accompany failure of the 0631311009: GROOVED STUD which secures the shaft within the housing.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2093.104.010 |
| Overall Length | 485 mm (estimated) |
| Major Diameter | 45 mm (estimated) |
| Spline Count | 24-tooth involute spline |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Weight | 4.2 kg (9.3 lbs) |
| OEM Reference | ZF 2093.104.010 |
| Surface Treatment | Black oxide or phosphated |
Compatibility
This main shaft is specifically designed for ZF WG100, WG130, and WG131 series transmissions. It is also compatible with the WG180 and WG200 models when used in conjunction with the correct bearing set. The shaft fits all standard forward-reverse gearbox configurations within these series. For proper sealing, always pair this shaft with a new 2093301021: GASKET and 0634801215: SEALING RING to prevent oil migration. The 0730365092: TYPE PLATE should also be verified to confirm your transmission’s exact model variant before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093101016 | HOUSING | Encloses the main shaft and gear cluster |
| 2093301030 | TRANSMISSION HOUSING | Outer structural casing for the gearbox |
| 0730365092 | TYPE PLATE | Identification plate for transmission model |
| 0631311009 | GROOVED STUD | Secures shaft alignment within housing |
| 4475280013 | SCREW PLUG | Seals oil passages in the housing |
| 2093301021 | GASKET | Prevents fluid leaks between mating surfaces |
| 0636302061 | SCREW PLUG | Drain or fill port plug |
| 0634801215 | SEALING RING | Static seal for housing joints |
| 4475280039 | SCREW PLUG | Secondary oil gallery plug |
| 0634303144 | O-RING | Hydraulic seal for shaft bore |
Frequently Asked Questions
Q: How do I know if my ZF 2093.104.010 main shaft is worn out?
A: Measure the spline wear using a go/no-go gauge. If the spline tips show more than 0.5 mm of step wear, or if the shaft exhibits visible scoring on the bearing journals, replacement is necessary. Always check for runout exceeding 0.1 mm using a dial indicator.
Q: Can I reuse the old grooved stud (0631311009) when installing this shaft?
A: No. ZF recommends replacing the 0631311009: GROOVED STUD whenever the main shaft is changed. The stud’s locking compound degrades over time, and reusing it risks shaft migration inside the housing.
Q: Is the 2093.104.010 shaft compatible with the WG180 transmission?
A: Yes, but only when used with the correct bearing spacer kit. The WG180 uses a slightly longer housing, so verify that the 2093301030: TRANSMISSION HOUSING matches your application. Consult the type plate (0730365092) for exact model identification.
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ZF 2093.104.010 MAIN SHAFT – Shaft RFQ Support
PartsZF supports RFQ preparation for ZF 2093.104.010 MAIN SHAFT where shaft identification and documentation review are required before ordering.
Part-Number Summary
Use ZF number 2093.104.010 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 | 2093.104.010 |
|---|---|
| Normalized SKU | 2093104010 |
| Part name | MAIN 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 2093.110.011 P.T.O. SHAFT
- ZF 5838.300.106 INPUT SHAFT
