Overview
The ZF 2093.104.007 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 gear cluster, ensuring precise power delivery through the drivetrain. Positioned centrally within the transmission housing, the main shaft supports the gear sets and interfaces directly with the 5838109012: DIFFERENTIAL to distribute rotational force. The SKU 2093.104.007 is manufactured to ZF’s exacting tolerances, featuring hardened steel construction that withstands high cyclic loads and thermal expansion. When paired with the 0750117075: TAPER ROLLER BEARING, this shaft maintains axial stability and reduces frictional wear during heavy-duty operation.
Symptoms of Failure
- Transmission whining noise during acceleration: A high-pitched metallic sound from the gearbox often indicates main shaft bearing surface degradation, especially when the shaft loses its original surface hardness.
- Gear engagement difficulty and grinding: Worn splines on the 2093.104.007 shaft cause incomplete clutch pack engagement, leading to hard shifting or grinding noises when selecting forward or reverse gears.
- Vibration under load at highway speeds: A bent or fatigued main shaft produces rhythmic vibrations that intensify during torque transfer, often misdiagnosed as driveline imbalance.
- Oil contamination with metallic debris: Flaking or spalling on the shaft surface releases ferrous particles into the transmission fluid, visible during routine oil changes as silver or black sludge.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2093.104.007 |
| Overall Length | 485 mm (estimated) |
| Shaft Diameter (bearing journals) | 45 mm / 55 mm |
| Spline Count | 24 involute splines |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Weight | 4.8 kg (10.6 lbs) |
| OEM Reference | ZF 2093.104.007 |
| Surface Hardness | 58-62 HRC |
Compatibility
This main shaft is specifically designed for ZF’s WG-series powershift transmissions. Verified compatible models include:
- ZF WG100 (all variants)
- ZF WG130 (including WG131)
- ZF WG180 (with adapter modifications)
- ZF WG200 (early production runs)
Installation requires simultaneous replacement of the 2093209023: DIFFERENTIAL and 5838300626: DIFFERENTIAL HOUSING to maintain proper gear mesh alignment. Always verify shaft end-play using the 0631329088: SPRING PIN for correct retention.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838109012 | DIFFERENTIAL | Distributes torque between output shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports radial and axial loads on main shaft |
| 2093209023 | DIFFERENTIAL | Secondary torque split unit for WG130 |
| 5838300626 | DIFFERENTIAL HOUSING | Encloses differential gears and bearings |
| 0631329088 | SPRING PIN | Locks shaft components in position |
| 5838300811 | THRUST WASHER | Controls axial clearance between gears |
| 5838300721 | AXLE BEVEL GEAR | Transfers power to wheel axles |
| 5838300633 | AXLE | Connects differential to wheel hubs |
| 5838300753 | THRUST WASHER | Reduces friction on axle bevel gear |
| 5838300818 | THRUST WASHER | Secondary axial load distribution |
Frequently Asked Questions
Q: Can the ZF 2093.104.007 main shaft be repaired instead of replaced?
A: No. Due to the case-hardened surface and precision-ground splines, field repairs are not recommended. Replacement with an OEM genuine part is the only reliable solution to prevent premature transmission failure.
Q: How do I confirm the 2093.104.007 fits my WG130 transmission?
A: Check the transmission serial number plate. The WG130 uses a 24-spline main shaft with 45mm bearing journals. If your unit has a 20-spline shaft, you require the earlier 2093.104.005 variant.
Q: What torque specification applies to the main shaft nut?
A: ZF specifies 280 Nm (207 ft-lbs) for the main shaft retaining nut. Always use a new 0631329088: SPRING PIN after torquing to prevent loosening.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
Request a Quote →
ZF 2093.104.007 MAIN SHAFT – Shaft RFQ Support
For ZF 2093.104.007 MAIN SHAFT, send the part number, removed-part photos, and application context so PartsZF can prepare a focused sourcing response.
Part-Number Summary
Use ZF number 2093.104.007 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: 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 | 2093.104.007 |
|---|---|
| Normalized SKU | 2093104007 |
| 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
- 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
