Overview
The ZF 2093.104.409 MAIN SHAFT is a critical rotating component engineered for the WG100, WG130, and WG131 transmission series. This OEM genuine part transmits torque from the input shaft to the output flange, directly influencing gear engagement and driveline stability. The SKU 2093.104.409 sits within the main shaft assembly, connecting the clutch housing to the differential unit. When paired with a properly functioning 2093109001: DIFFERENTIAL, this shaft ensures smooth power transfer under heavy loads. Precision-ground splines and hardened bearing journals allow the main shaft to withstand high torsional stress while maintaining concentric alignment with the 0750117075: TAPER ROLLER BEARING that supports its radial load.
Symptoms of Failure
When the ZF 2093.104.409 main shaft begins to wear, operators typically notice three distinct failure modes. First, gear slipping under load occurs as the shaft splines lose their interference fit with mating components, causing intermittent power loss during acceleration. Second, vibration at highway speeds indicates bearing journal wear, which can be confirmed by inspecting the 0750117075: TAPER ROLLER BEARING for pitting. Third, metallic debris in transmission fluid signals spline fretting or shaft surface spalling. Fourth, difficulty engaging reverse gear often points to axial play in the main shaft, which may also affect the 2093209095: DIFFERENTIAL alignment. These symptoms frequently appear together, requiring immediate replacement to prevent damage to the 2093309071: DIFF.HOUSING.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number (SKU) | 2093.104.409 |
| Overall Length | 385 mm |
| Shaft Diameter (Bearing Journals) | 45 mm |
| Spline Count | 24 (involute) |
| Material | Case-hardened alloy steel (20MnCr5) |
| Weight | 3.2 kg |
| OEM Reference | ZF 2093.104.409 |
| Hardness | 58-62 HRC (surface) |
Compatibility
This OEM genuine main shaft is specifically designed for ZF WG-series transmissions. Confirmed compatible models include WG100, WG130, and WG131. It may also fit select variants of the WG180 and WG200 series when used with the correct 2093109001: DIFFERENTIAL and 2093209095: DIFFERENTIAL assemblies. Always verify the bearing seat dimensions against your existing 0750117075: TAPER ROLLER BEARING before installation. The shaft is not backward-compatible with older WG80 or WG90 models without modifying the 2093309071: DIFF.HOUSING.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093109001 | DIFFERENTIAL | Distributes torque to axle shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports main shaft radial load |
| 2093209095 | DIFFERENTIAL | Secondary torque distribution unit |
| 2093309071 | DIFF.HOUSING | Encloses differential gears |
| 0631100223 | SPRING PIN | Secures shaft components |
| 0730300820 | THRUST WASHER | Controls axial clearance |
| 4482360002 | AXLE BEVEL GEAR | Transfers power to axle |
| 2097309085 | DIFFERENTIAL AXLE | Connects differential to wheels |
| 5838300811 | THRUST WASHER | Reduces friction in gear set |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Meshes with axle bevel gear |
Frequently Asked Questions
Q: How do I know if my ZF 2093.104.409 main shaft needs replacement?
A: Measure the shaft spline wear using a spline gauge. If the wear exceeds 0.5 mm on the tooth width, or if you detect visible pitting on the bearing journals, immediate replacement is necessary to avoid damaging the 2093109001: DIFFERENTIAL.
Q: Can I reuse the old taper roller bearing with a new main shaft?
A: No. Always install a new 0750117075: TAPER ROLLER BEARING when replacing the main shaft. The bearing raceways conform to the shaft journal during operation, and reusing them accelerates wear on the new shaft.
Q: What torque specification applies to the main shaft retaining nut?
A: For the WG100/WG130 series, tighten the main shaft nut to 280 Nm (206 ft-lb) and then rotate an additional 60 degrees. Always replace the 0631100223: SPRING PIN after torquing to prevent loosening.
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ZF 2093.104.409 MAIN SHAFT – Shaft RFQ Support
PartsZF helps B2B buyers source ZF 2093.104.409 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 2093.104.409 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Illustration section: T 7229 L
- 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 | 2093.104.409 |
|---|---|
| Normalized SKU | 2093104409 |
| 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.
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