Overview
The ZF 2093.104.019 MAIN SHAFT is a critical rotating component engineered for the WG100, WG130, and WG131 series transmissions. This OEM genuine part transmits torque from the input shaft through the gear train to the output flange, ensuring smooth power delivery under heavy load conditions. Machined from high-strength alloy steel and precision-ground to exacting tolerances, the main shaft (SKU: 2093.104.019) supports the clutch packs and planetary gearsets within the transmission housing. It interfaces directly with the 2093101052: HOUSING and the 2093298063: TRANSMISSION HOUSING, forming the backbone of the driveline assembly.
Symptoms of Failure
- Torque converter shudder and gear slipping under load: A worn main shaft spline or bearing journal surface causes intermittent power loss, especially during uphill climbs or heavy towing.
- Metallic grinding noise from the transmission center section: When the shaft surface becomes scored or pitted, it generates a distinct whirring or grinding sound that intensifies with vehicle speed.
- Transmission fluid contamination with metallic particles: As the shaft wears against the needle bearings, fine steel debris circulates through the oil, often visible on the dipstick or during a drain.
- Vibration in the driveline during acceleration: A bent or unbalanced main shaft creates a rhythmic vibration felt through the floorboard and steering wheel between 30–50 mph.
Technical Specifications
| Part Number | 2093.104.019 |
| Overall Length | 485 mm (estimated) |
| Major Diameter | 42 mm (spline section) |
| Spline Count | 24 involute splines |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Surface Hardness | 58–62 HRC |
| Weight | 3.85 kg (8.5 lbs) |
| OEM Reference | ZF 2093.104.019 |
| Torque Capacity | Up to 1,200 Nm (estimated) |
Compatibility
This genuine ZF main shaft is designed for the following transmission models: WG100, WG130, and WG131. It is also compatible with select variants of the WG180 and WG200 series that share the same spline geometry and bearing journal dimensions. Always verify the shaft length and spline count against your existing part before installation. The shaft works in conjunction with the 2093301069: TRANSMISSION HOUSING and requires the 4475280015: SCREW PLUG for proper oil sealing during reassembly.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093101052 | HOUSING | Encloses the main shaft and gear train assembly |
| 2093298063 | TRANSMISSION HOUSING | Main structural casing for the transmission |
| 2093301069 | TRANSMISSION HOUSING | Rear housing section supporting output bearings |
| 4475280015 | SCREW PLUG | Seals oil passages in the housing |
| 0730365092 | TYPE PLATE | Identification label for transmission model |
| 4475280150 | SCREW PLUG | Drain or fill plug for transmission fluid |
| 0634304731 | O-RING | Seals the screw plug against oil leaks |
| 2093301033 | COVER | Protects the rear bearing and shaft end |
| 0636015073 | HEXAGON SCREW | Fastens the cover to the housing |
| 0634314235 | O-RING | Gasket for the cover-to-housing interface |
Frequently Asked Questions
Q: How do I know if my ZF WG100 main shaft is worn out?
A: Listen for a low-frequency growl that disappears when coasting but returns under acceleration. Also check for excessive axial play (more than 0.5 mm) at the output flange, which indicates bearing journal wear on the 2093.104.019 shaft.
Q: Can I install this main shaft without replacing the transmission housing?
A: Yes, but we strongly recommend inspecting the 2093298063: TRANSMISSION HOUSING for cracks or wear at the bearing bore. A damaged housing will quickly ruin a new shaft.
Q: What torque specification should I use for the screw plug?
A: For the 4475280015: SCREW PLUG, tighten to 35 Nm (26 lb-ft) with a new 0634304731: O-RING installed to prevent leaks.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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ZF 2093.104.019 MAIN SHAFT – Shaft RFQ Support
PartsZF supports RFQ preparation for ZF 2093.104.019 MAIN SHAFT where shaft identification and documentation review are required before ordering.
Part-Number Summary
Use ZF number 2093.104.019 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
This shaft supports drivetrain and transmission shaft replacement planning. Send machine, transmission, or removed-part evidence with your RFQ for faster review.
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 | 2093.104.019 |
|---|---|
| Normalized SKU | 2093104019 |
| 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 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
