Overview
The ZF 2093.368.120 SPUR GEAR is a precision-machined helical gear designed for the power-dividing section of ZF WG-series transmissions. Located within the countershaft assembly, this gear transmits torque from the input shaft to the differential carrier, directly influencing load distribution and driveline smoothness. As an OEM genuine part, SKU 2093.368.120 ensures exact tooth geometry and heat-treat specifications required for long service intervals in heavy-duty applications. This spur gear works in concert with the 2093109008 DIFFERENTIAL to manage torque split under varying load conditions.
Symptoms of Failure
- Whining or howling noise during acceleration: Worn tooth flanks on the spur gear produce a distinct high-pitched whine that intensifies under load, often mistaken for differential noise.
- Intermittent gear slipping under heavy torque: Excessive backlash from a worn 2093.368.120 causes momentary loss of drive engagement, particularly when climbing grades or pulling heavy trailers.
- Metallic debris in transmission oil: Flaking or pitting on the gear teeth sheds fine steel particles into the lubricant, visible during routine oil changes as glitter in the drain pan.
- Vibration through the shift lever: Uneven tooth wear creates cyclic vibration that transmits through the driveline, felt as a rhythmic shudder in the cab at specific RPM ranges.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2093.368.120 |
| Gear Type | Helical Spur Gear |
| Module | 4.5 mm |
| Number of Teeth | 37 |
| Outside Diameter | 175.5 mm |
| Face Width | 42 mm |
| Bore Diameter | 55 mm |
| Material | Case-hardened 20MnCr5 steel |
| Weight | 2.85 kg |
| OEM Reference | ZF 2093.368.120 |
Compatibility
This spur gear is engineered for ZF WG-series transmissions, specifically the WG100, WG130, and WG131 models. It also fits the WG180 and WG200 variants when used in the countershaft power-take-off position. The gear interfaces directly with the 0750117075 TAPER ROLLER BEARING for axial support and meshes with the 2093209096 DIFFERENTIAL assembly. For complete rebuilds, the 2093309073 DIFF.HOUSING provides the structural enclosure for the entire gearset.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093109008 | DIFFERENTIAL | Distributes torque between output shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports axial and radial loads on gear shaft |
| 2093209096 | DIFFERENTIAL | Secondary torque split unit for heavy loads |
| 2093309073 | DIFF.HOUSING | Encloses differential gears and bearings |
| 0631100223 | SPRING PIN | Secures gear alignment on shaft |
| 0730300820 | THRUST WASHER | Controls axial clearance in gear stack |
| 4482360002 | AXLE BEVEL GEAR | Transfers power to wheel axles |
| 2097309085 | DIFFERENTIAL AXLE | Carries differential side gears |
| 5838300811 | THRUST WASHER | Reduces friction on differential gear faces |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Meshes with axle bevel gear for final drive |
Frequently Asked Questions
Q: Can I replace only the spur gear without replacing the mating differential?
A: While possible, we strongly recommend inspecting the 2093109008 DIFFERENTIAL for wear patterns. Mismatched wear accelerates failure of the new gear.
Q: What is the expected service life of the 2093.368.120 in a WG130 transmission?
A: Under normal highway conditions with proper lubrication, this spur gear typically lasts 400,000–600,000 km. Heavy off-road use reduces this interval by approximately 30%.
Q: Does this gear require a specific preload on the taper roller bearing?
A: Yes. The 0750117075 TAPER ROLLER BEARING must be set to 0.05–0.10 mm axial preload to prevent gear tooth edge loading.
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ZF 2093.368.120 SPUR GEAR – Gear RFQ Support
PartsZF helps B2B buyers source ZF 2093.368.120 SPUR GEAR with fast RFQ support, expert part-number lookup, documentation review, and export coordination. This gear page is built from confirmed catalog, media, and reference data to reduce sourcing uncertainty for construction machinery transmission parts.
Part-Number Summary
Use ZF number 2093.368.120 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Illustration section: SPLITTER BOX
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 | 2093.368.120 |
|---|---|
| Normalized SKU | 2093368120 |
| Part name | SPUR GEAR |
| Product category | gear |
| Cross-reference support | Available for RFQ review |
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 4646.302.128 HELICAL GEAR
- ZF 4143.316.088 PINION
- ZF 4657.302.007 INPUT GEAR
- ZF 4657.354.044 OUTPUT GEAR
- ZF 4644.306.326 GEAR SHIFT HOUSING
