Overview
This genuine OEM ZF 2093.310.149 SPUR GEAR is a critical power transmission component engineered for the WG100, WG130, and WG131 series transmissions. Positioned within the final drive assembly, this spur gear directly transfers rotational force from the countershaft to the differential carrier, ensuring smooth torque delivery under heavy loads. The SKU 2093.310.149 is manufactured to ZF’s exacting tolerances, providing a direct bolt-in replacement that restores factory gear mesh patterns and eliminates drivetrain noise. When installed alongside a properly functioning 2093109028: DIFFERENTIAL, this spur gear maintains optimal gear lash and prevents premature wear on adjacent components.
Symptoms of Failure
- Whining or howling noise during acceleration: A worn 2093.310.149 spur gear produces a distinct high-pitched whine that intensifies under load, often mistaken for differential bearing failure.
- Metal shavings in transmission oil: Pitting or chipped gear teeth shed ferrous debris into the lubricant, which can be detected during routine oil changes and indicates imminent gear failure.
- Vibration in the driveline at steady speeds: Uneven tooth wear on this spur gear creates cyclic vibrations felt through the chassis, particularly between 40-60 km/h.
- Intermittent gear slipping or clunking: Advanced wear causes the spur gear to lose proper engagement with the mating pinion, resulting in audible clunks during gear changes or when shifting between forward and reverse.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2093.310.149 |
| Gear Type | Helical Spur Gear |
| Material | Case-Hardened Alloy Steel (20MnCr5) |
| Number of Teeth | 37 |
| Module | 4.5 |
| Outside Diameter | 175.5 mm |
| Face Width | 32 mm |
| Bore Diameter | 45 mm (H7 tolerance) |
| Weight | 1.85 kg |
| OEM Reference | ZF 2093.310.149 |
| Hardness | 58-62 HRC (case depth 0.8-1.2 mm) |
Compatibility
This spur gear is specifically designed for ZF’s WG-series mechanical transmissions. It is a direct fit for the following models:
- ZF WG100 (all variants)
- ZF WG130 (including WG130-1 and WG130-2)
- ZF WG131 (standard and heavy-duty configurations)
While primarily intended for the above models, this gear may also be compatible with ZF WG180 and WG200 transmissions when used in conjunction with the correct 2093209094: DIFFERENTIAL assembly. Always verify gear mesh patterns and backlash specifications when cross-referencing. For proper installation, ensure the 0750117075: TAPER ROLLER BEARING supporting this gear is replaced simultaneously to maintain correct preload. The 2093309078: DIFF.HOUSING must also be inspected for wear at the gear seat during rebuilds.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093109028 | DIFFERENTIAL | Distributes torque to axle shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports spur gear shaft preload |
| 2093209094 | DIFFERENTIAL | Alternate differential assembly for WG180 |
| 2093309078 | DIFF.HOUSING | Houses differential and spur gear set |
| 0631100223 | SPRING PIN | Secures gear to shaft |
| 0730300820 | THRUST WASHER | Controls axial gear movement |
| 4482360002 | AXLE BEVEL GEAR | Transfers power to wheel axles |
| 2097309085 | DIFFERENTIAL AXLE | Connects differential to wheel hub |
| 5838300811 | THRUST WASHER | Reduces friction in gear stack |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Primary gear in differential set |
Frequently Asked Questions
Q: How do I know if my ZF WG100 needs a new 2093.310.149 spur gear?
A: Listen for a rhythmic whining noise that increases with road speed, not engine RPM. If you also find metallic particles on the transmission drain plug magnet, the spur gear teeth are likely pitted or chipped and require immediate replacement.
Q: Can I reuse the old taper roller bearing when installing this spur gear?
A: No. ZF recommends always replacing the 0750117075: TAPER ROLLER BEARING simultaneously, as used bearings develop race wear that will misalign the new gear and cause premature failure within 500 operating hours.
Q: Is the 2093.310.149 gear interchangeable between WG130 and WG131 transmissions?
A: Yes, the gear is physically identical for both models. However, you must verify the differential housing part number; the WG131 often uses the 2093309078: DIFF.HOUSING which has a different bearing seat depth than earlier housings.
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ZF 2093.310.149 SPUR GEAR – Gear RFQ Support
ZF 2093.310.149 SPUR GEAR is handled as a gear-train sourcing item for transmission repair teams. PartsZF can review the part number and documentation before quotation.
Part-Number Summary
Use ZF number 2093.310.149 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Illustration section: P.T.O. 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 | 2093.310.149 |
|---|---|
| Normalized SKU | 2093310149 |
| Part name | SPUR GEAR |
| Product category | gear |
| 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.
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