Overview
The ZF 2093.310.068 SPUR GEAR is a precision-machined helical gear designed for the auxiliary drive and power take-off (PTO) train within ZF WG100, WG130, and WG131 transmissions. This OEM genuine part transfers rotational torque from the input shaft to the differential assembly, ensuring smooth engagement under load. The SKU 2093.310.068 sits directly on the countershaft and meshes with the output bevel gear set. When paired with a properly maintained 5838109012: DIFFERENTIAL, this spur gear maintains consistent gear mesh alignment and prevents driveline vibration.
Symptoms of Failure
- Whining or howling noise during deceleration — Worn teeth on the 2093.310.068 create a high-pitched metallic sound, especially when coasting downhill or under light throttle.
- Intermittent PTO engagement failure — If the spur gear teeth are chipped or spalled, the auxiliary drive will slip or fail to engage, causing the “PTO not engaging” fault code.
- Metal particles in transmission oil filter — Flaking from the gear face contaminates the lubricant, often detected during routine oil analysis or when replacing the 5838300626: DIFFERENTIAL HOUSING seal.
- Vibration at highway speeds (55-65 mph) — Uneven tooth wear causes harmonic imbalance, felt through the floorboard and gearshift lever.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2093.310.068 |
| Material | Case-hardened 20MnCr5 alloy steel |
| Module (Metric) | 4.5 mm |
| Number of Teeth | 23 |
| Outside Diameter | 112.5 mm |
| Face Width | 32 mm |
| Bore Diameter | 35 mm (H7 tolerance) |
| Weight | 1.85 kg |
| OEM Reference | ZF 2093.310.068 |
| Heat Treatment | Carburized & tempered to 58-62 HRC |
Compatibility
This spur gear is factory-specified for the following ZF transmission models: WG100, WG130, and WG131. It is also compatible with select WG180 and WG200 variants that share the same auxiliary drive architecture. Always verify the tooth count and bore diameter against your existing gear. The 2093.310.068 works in conjunction with the 0750117075: TAPER ROLLER BEARING which supports the countershaft, and the 2093209023: DIFFERENTIAL that receives torque from this gear. For final drive applications, confirm housing clearance with the 5838300626: DIFFERENTIAL HOUSING.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838109012 | DIFFERENTIAL | Distributes torque to axle shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports countershaft radial load |
| 2093209023 | DIFFERENTIAL | Receives torque from spur gear |
| 5838300626 | DIFFERENTIAL HOUSING | Encloses differential assembly |
| 0631329088 | SPRING PIN | Secures gear to shaft |
| 5838300811 | THRUST WASHER | Controls axial clearance |
| 5838300721 | AXLE BEVEL GEAR | Transfers power to wheel ends |
| 5838300633 | AXLE | Drives wheel hub |
| 5838300753 | THRUST WASHER | Reduces friction on gear face |
| 5838300818 | THRUST WASHER | Adjusts differential preload |
Frequently Asked Questions
Q: Can I replace the 2093.310.068 spur gear without removing the transmission?
A: No. The gear is located on the countershaft inside the main case. The transmission must be removed and split to access the gear set. We recommend replacing the 0750117075: TAPER ROLLER BEARING simultaneously.
Q: What is the expected service life of this spur gear under normal conditions?
A: With proper lubrication and load ratings, the OEM gear typically lasts 500,000 to 700,000 miles. Early failure often indicates a misaligned 5838300626: DIFFERENTIAL HOUSING or worn thrust washers.
Q: Does this gear require a specific backlash setting?
A: Yes. The factory spec is 0.10–0.20 mm backlash when meshed with the mating differential gear. Use the 5838300811: THRUST WASHER to adjust clearance.
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ZF 2093.310.068 SPUR GEAR – Gear RFQ Support
PartsZF helps B2B buyers source ZF 2093.310.068 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 2093.310.068 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 | 2093.310.068 |
|---|---|
| Normalized SKU | 2093310068 |
| Part name | SPUR GEAR |
| Product category | gear |
| Cross-reference support | Available for RFQ review |
| Weight | 1.1 |
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
