Overview
The ZF 2093.104.016 MAIN SHAFT is a critical rotating component engineered for the WG100, WG130, and WG131 series transmissions. As the central torque-transmitting element, this OEM genuine part transfers engine power from the input shaft to the countershaft and ultimately to the output flange. Precision-ground splines and hardened bearing journals ensure minimal backlash and maximum durability under heavy-duty cycles. The SKU 2093.104.016 is manufactured to ZF’s original tolerances, guaranteeing a direct fit without modification. During a rebuild, this main shaft works in concert with the 2093101011: HOUSING and the 2093301027: HOUSING to maintain proper gear alignment and oil circulation.
Symptoms of Failure
- Erratic gear engagement or grinding noises – Worn splines on the main shaft cause the synchronizer hubs to slip, producing a harsh metallic sound during shifts. This is a common long-tail search query for “ZF transmission grinding when shifting.”
- Oil seepage at the rear seal area – A scored or pitted main shaft surface damages the output seal, leading to visible drips under the bell housing. Technicians often search for “ZF main shaft oil leak repair.”
- Vibration under load – Bent or fatigued shafts create harmonic oscillations that worsen at highway speeds. This symptom frequently appears in searches for “transmission vibration after rebuild.”
- Intermittent loss of drive – When the main shaft splines strip, the transmission may momentarily lose torque transfer, especially under heavy throttle. This is a critical failure mode for “ZF WG100 no forward motion.”
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number / SKU | 2093.104.016 |
| Overall Length | ~485 mm |
| Shaft Diameter (bearing journals) | 40 mm / 45 mm |
| Spline Count (input side) | 14-tooth involute |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Weight | ~3.8 kg |
| OEM Reference | ZF 2093.104.016 |
| Surface Treatment | Black oxide / phosphate coating |
Compatibility
This genuine ZF main shaft is designed for the WG100, WG130, and WG131 transmission families. It also fits select variants of the WG180 and WG200 series when used with the correct bearing set. Always verify the serial number on your transmission’s 0730365092: TYPE PLATE before ordering. The shaft is retained by a 0631311009: GROOVED STUD that locks the bearing in place, and it mates with the countershaft gears via precision helical teeth.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093101011 | HOUSING | Encloses the main shaft and supports bearing bores |
| 2093301027 | HOUSING | Rear housing section for output shaft support |
| 0730365092 | TYPE PLATE | Identifies transmission model and gear ratios |
| 0631311009 | GROOVED STUD | Secures main shaft bearing retaining nut |
| 2093301021 | GASKET | Seals housing joint to prevent oil leaks |
| 0634306328 | O-RING | Seals the main shaft bore in the housing |
| 2093103025 | COUNTERSHAFT | Parallel shaft that meshes with main shaft gears |
| 2093303040 | COUNTERSHAFT | Alternate countershaft for WG130 variants |
| 2093303087 | HELICAL GEAR | Drives the countershaft from the main shaft |
| 0501007515 | SYNCHRONIZER | Matches gear speeds during shifting |
Frequently Asked Questions
Q: Can I install the 2093.104.016 main shaft without replacing the bearings?
A: It is strongly recommended to replace all main shaft bearings and seals simultaneously. A worn bearing race can quickly damage a new shaft, leading to premature failure and oil leaks.
Q: How do I confirm this shaft fits my WG130 transmission?
A: Locate the 0730365092: TYPE PLATE on your transmission housing. Verify that the model number begins with “WG130” and that the serial number falls within the production range listed in the ZF service bulletin.
Q: What torque specification should I use for the grooved stud (0631311009)?
A: Tighten the 0631311009: GROOVED STUD to 80 Nm, then apply a 90-degree turn. Always use a new lock plate to prevent loosening during operation.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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ZF 2093.104.016 MAIN SHAFT – Shaft RFQ Support
For ZF 2093.104.016 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 2093.104.016 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 | 2093.104.016 |
|---|---|
| Normalized SKU | 2093104016 |
| 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
