Overview
The ZF 2093.346.029 GEAR is a precision-engineered helical gear designed for the auxiliary drive and power take-off (PTO) circuits within the WG100, WG130, and WG131 transmission families. This OEM genuine part, identified by SKU 2093.346.029, sits on the countershaft assembly and is responsible for transferring torque from the input shaft to the oil pump and secondary drive systems. When this gear wears, it directly compromises hydraulic pressure and gear train synchronization. For a complete rebuild, this gear must be installed alongside the 2093101052: HOUSING to ensure proper bearing alignment and oil channel integrity.
Symptoms of Failure
- Intermittent gear slipping under load: Worn teeth on the 2093.346.029 gear cause the transmission to lose torque during acceleration, particularly in lower gears. This is a common long-tail search query for “ZF WG100 gear slipping under load.”
- Low hydraulic pressure and delayed engagement: A chipped or pitted gear reduces oil pump drive speed, leading to “ZF transmission delayed engagement” and harsh shifts.
- Metallic debris in the oil pan: Flaking from the gear surface produces fine steel particles, often flagged during routine “ZF transmission oil analysis” inspections.
- Whining or grinding noise from the bell housing: A failing gear creates a distinct high-pitched whine that increases with engine RPM, a classic symptom for “ZF WG131 whining noise repair.”
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 2093.346.029 |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Number of Teeth | 29 (helical, 20° pressure angle) |
| Outside Diameter | 98.4 mm |
| Bore Diameter | 32.0 mm |
| Face Width | 28.5 mm |
| Weight | 0.85 kg |
| OEM Reference | ZF 2093.346.029 (Genuine) |
| Hardness | 58-62 HRC (case depth 0.8 mm) |
Compatibility
This gear is engineered for the ZF WG series of powershift transmissions. It is a direct fit for the WG100, WG130, and WG131 models. It also shares compatibility with the WG180 and WG200 series when used in the auxiliary drive position, though we recommend verifying the countershaft spline count. The gear interfaces directly with the 2093298063: TRANSMISSION HOUSING and the 2093301069: TRANSMISSION HOUSING to maintain correct axial play. Always replace the 4475280015: SCREW PLUG during installation to prevent oil seepage from the inspection port.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093101052 | HOUSING | Encloses the gear set and directs oil flow |
| 2093298063 | TRANSMISSION HOUSING | Main structural casing for the gear train |
| 2093301069 | TRANSMISSION HOUSING | Rear housing section supporting output shaft |
| 4475280015 | SCREW PLUG | Seals the housing inspection port |
| 0730365092 | TYPE PLATE | Identification plate for transmission model |
| 4475280150 | SCREW PLUG | Drain plug for the gear housing |
| 0634304731 | O-RING | Seals the gear housing joint |
| 2093301033 | COVER | Protects the gear cavity from debris |
| 0636015073 | HEXAGON SCREW | Fastens the cover to the housing |
| 0634314235 | O-RING | Seals the screw plug interface |
Frequently Asked Questions
Q: Can the 2093.346.029 gear be used in a WG180 transmission?
A: Yes, this gear is mechanically compatible with the WG180 auxiliary drive circuit, but you must verify the countershaft spline count matches your specific build. We recommend cross-referencing your old gear’s tooth profile.
Q: What torque specification should I use for the screw plug when reinstalling?
A: For the 4475280015: SCREW PLUG, apply 35 Nm of torque with a thread-locking compound. Over-tightening can crack the housing.
Q: How do I identify a worn gear without disassembling the transmission?
A: Listen for a rhythmic clicking sound that increases with engine RPM. Additionally, check for metallic particles on the magnetic drain plug—this is a reliable indicator of gear surface fatigue.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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ZF 2093.346.029 GEAR – Gear RFQ Support
ZF 2093.346.029 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 2093.346.029 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
This gear supports gear train repair, rebuild, and part-number matching work. 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 | 2093.346.029 |
|---|---|
| Normalized SKU | 2093346029 |
| Part name | 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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