Overview
The ZF 2094.104.412 MAIN SHAFT is a critical rotating component engineered for the WG100, WG130, and WG131 series transmissions. This OEM genuine part serves as the central torque-transmitting axis within the gearbox, directly connecting the input drive to the output flange. The SKU 2094.104.412 identifies a precision-ground shaft designed to withstand high torsional loads and continuous duty cycles. It sits within the main gear cluster, supporting multiple gears and synchronizers to ensure smooth power delivery. When rebuilding a ZF transmission, this main shaft is often replaced alongside the 2094304054: MAIN SHAFT to guarantee matched wear patterns and proper gear alignment.
Symptoms of Failure
- Transmission gear slipping under load: A worn main shaft spline or bearing journal causes the gears to lose engagement, especially during acceleration or hill climbing.
- Vibration and driveline noise: Excessive radial play in the shaft leads to a low-frequency hum or knocking sound that intensifies with road speed.
- Oil leaks at the output seal: A scored or pitted shaft surface damages the lip seal, allowing transmission fluid to weep from the rear housing.
- Hard shifting or gear clash: Misalignment from a bent main shaft prevents synchronizers from locking cleanly, resulting in grinding during gear changes.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2094.104.412 |
| Overall Length | ~420 mm |
| Spline Diameter | 38 mm (input) / 45 mm (output) |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Weight | ~3.8 kg |
| OEM Reference | ZF 2094.104.412 |
| Surface Treatment | Black oxide / phosphate coating |
Compatibility
This main shaft is specifically designed for the ZF WG100, WG130, and WG131 series transmissions. It is also compatible with certain variants of the WG180 and WG200 models when used with the correct bearing set. Always verify the spline count and overall length against your existing shaft. For a complete overhaul, we recommend pairing this shaft with the 2094106010: SHIFT SYSTEM to restore precise gear engagement. Additionally, the 2094206001: GEARSHIFT SHAFT and 2094306053: GEARSHIFT SHAFT are frequently replaced during the same service interval to eliminate slop in the shift linkage.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2094304054 | MAIN SHAFT | Secondary main shaft for dual-shaft configurations |
| 2094106010 | SHIFT SYSTEM | Complete shift rail and fork assembly |
| 2094206001 | GEARSHIFT SHAFT | Selector shaft for gear engagement |
| 2094306053 | GEARSHIFT SHAFT | Secondary shift shaft for range change |
| 0630513070 | SNAP RING | Retains bearings and gears on the shaft |
| 2094306019 | WASHER | Thrust washer for axial clearance adjustment |
| 0732040444 | COMPRESSION SPRING | Spring for synchronizer detent mechanism |
| 0732040728 | COMPRESSION SPRING | Heavy-duty spring for main shift rail |
| 2093206001 | BUSH | Plain bearing bush for layshaft support |
| 2094306014 | BUSH | Bush for main shaft pilot bearing |
Frequently Asked Questions
Q: How do I know if the ZF 2094.104.412 main shaft is the correct replacement for my transmission?
A: Measure the overall length and spline diameter of your existing shaft. The 2094.104.412 is used in WG100, WG130, and WG131 models. If your transmission is a WG180 or WG200, verify the bearing journal dimensions match the factory service manual.
Q: Can I reuse the old snap rings and washers when installing this main shaft?
A: No. We strongly recommend replacing all retaining hardware, including the 0630513070: SNAP RING and 2094306019: WASHER, to prevent axial play and premature bearing failure.
Q: What is the typical service life of this OEM main shaft?
A: Under normal operating conditions with proper lubrication, the 2094.104.412 shaft can last 500,000 to 800,000 km. Heavy loads or contaminated oil will significantly reduce this lifespan.
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Phone: +86 158 2286 3467 |
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ZF 2094.104.412 MAIN SHAFT – Shaft RFQ Support
PartsZF supports RFQ preparation for ZF 2094.104.412 MAIN SHAFT where shaft identification and documentation review are required before ordering.
Part-Number Summary
Use ZF number 2094.104.412 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 | 2094.104.412 |
|---|---|
| Normalized SKU | 2094104412 |
| 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
