Overview
The ZF 2093.104.018 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 directly to the differential assembly, ensuring synchronized power delivery under heavy load. The SKU 2093.104.018 is precision-machined to maintain exact gear mesh alignment, reducing vibration and preventing premature wear on adjacent components. Located centrally within the transmission housing, this main shaft interfaces directly with the 2093109002: DIFFERENTIAL to distribute rotational force efficiently.
Symptoms of Failure
- Grinding noise during gear engagement: A worn main shaft causes misalignment, producing a metallic grinding sound when shifting between forward and reverse gears.
- Oil seepage near the shaft seal: Surface scoring on the shaft damages the seal lip, leading to visible transmission fluid leaks around the bell housing.
- Intermittent power loss under load: Spline wear on the 2093.104.018 shaft results in torque slip, causing the vehicle to hesitate or lose drive power on inclines.
- Excessive end-play vibration: Bearing race wear on the shaft creates axial movement, felt as a low-frequency shudder through the chassis at cruising speeds.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number (SKU) | 2093.104.018 |
| Overall Length | 385 mm (estimated) |
| Shaft Diameter | 45 mm (bearing journal) |
| Spline Count | 21 involute splines |
| Material | Case-hardened alloy steel (20MnCr5) |
| Weight | 3.2 kg (7.05 lbs) |
| OEM Reference | ZF 2093.104.018 |
| Heat Treatment | Carburized & tempered to HRC 58-62 |
Compatibility
This main shaft is specifically designed for ZF WG-series powershift transmissions. It is a direct fit for the WG100, WG130, and WG131 models. While not compatible with the WG180 or WG200 series without modification, the 2093.104.018 shaft shares its bearing journal dimensions with the 0750117075: TAPER ROLLER BEARING used in those larger units. For complete differential rebuilds, pair this shaft with the 2093209095: DIFFERENTIAL and the 2093309071: DIFF.HOUSING to restore OEM tolerances.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093109002 | 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 to gear hub |
| 0730300820 | THRUST WASHER | Controls axial clearance |
| 4482360002 | AXLE BEVEL GEAR | Transfers power to wheel axles |
| 2097309085 | DIFFERENTIAL AXLE | Connects differential to wheel hub |
| 5838300811 | THRUST WASHER | Reduces friction on gear faces |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Primary gear for torque splitting |
Frequently Asked Questions
Q: How do I know if my ZF 2093.104.018 main shaft is worn beyond repair?
A: Measure the spline width at three points. If any spline measures less than 4.2 mm across the face, or if the bearing journal shows visible pitting deeper than 0.1 mm, replacement is mandatory to avoid catastrophic transmission failure.
Q: Can I reuse the old taper roller bearing when installing this new shaft?
A: No. Always replace the 0750117075: TAPER ROLLER BEARING simultaneously. The bearing race conforms to the old shaft’s wear pattern, and reusing it will cause premature failure of the new 2093.104.018 shaft.
Q: Does this main shaft require special lubrication upon installation?
A: Yes. Apply a thin coat of ZF-approved molybdenum disulfide assembly paste to all splines and the bearing journal before installation. This prevents galling during the initial break-in period.
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ZF 2093.104.018 MAIN SHAFT – Shaft RFQ Support
PartsZF helps B2B buyers source ZF 2093.104.018 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 2093.104.018 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 7226 L
- Illustration section: T 7224 L
- Illustration section: T 7227 L
- Illustration section: T 7226
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 | 2093.104.018 |
|---|---|
| Normalized SKU | 2093104018 |
| Part name | MAIN SHAFT |
| Product category | shaft |
| Cross-reference support | Available for RFQ review |
Image and Documentation Notes
Current product media status: diagram. 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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