Overview
The ZF 2093.303.087 HELICAL GEAR is a precision-machined component engineered for the WG100, WG130, and WG131 series transmissions. This gear is responsible for transferring torque between parallel shafts within the transmission’s auxiliary drive assembly, ensuring smooth power delivery and reduced noise under load. As an OEM genuine part, SKU 2093.303.087 meets strict ZF tolerances for tooth profile and hardness, making it a direct replacement for worn or damaged gears. It interfaces directly with the 5838109012: DIFFERENTIAL and the 0750117075: TAPER ROLLER BEARING to maintain correct shaft alignment and load distribution.
Symptoms of Failure
- Whining or howling noise during acceleration: A worn helical gear produces a distinct high-pitched whine that increases with engine RPM, often mistaken for a bearing issue.
- Vibration in the driveline at cruising speeds: As the gear teeth wear unevenly, vibrations transmit through the transmission housing, felt in the chassis or steering wheel.
- Metallic debris in transmission fluid: Flaking or pitting on the gear teeth sheds fine metal particles, visible during oil changes or when inspecting the magnetic drain plug.
- Intermittent gear slipping under heavy load: Worn tooth profiles can cause momentary loss of torque transfer, especially when climbing grades or towing.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2093.303.087 |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Tooth Count | 23 (helical, 15° helix angle) |
| Outside Diameter | 92.5 mm |
| Bore Diameter | 30.0 mm |
| Face Width | 28.0 mm |
| Weight | 0.85 kg |
| OEM Reference | ZF 2093.303.087 |
| Hardness | 58-62 HRC (case depth 0.8-1.2 mm) |
Compatibility
This helical gear is specifically designed for ZF WG100, WG130, and WG131 transmissions. It is also used in select WG180 and WG200 variants where the auxiliary drive configuration matches the 23-tooth helical pattern. Always verify the existing gear’s tooth count and bore diameter before ordering. The gear works in conjunction with the 2093209023: DIFFERENTIAL and mounts within the 5838300626: DIFFERENTIAL HOUSING to ensure correct gear mesh and oil flow.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838109012 | DIFFERENTIAL | Distributes torque between output shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports gear shaft radial and axial loads |
| 2093209023 | DIFFERENTIAL | Secondary differential for multi-axle drives |
| 5838300626 | DIFFERENTIAL HOUSING | Encloses differential and gear assembly |
| 0631329088 | SPRING PIN | Secures gear to shaft alignment |
| 5838300811 | THRUST WASHER | Controls axial play in gear stack |
| 5838300721 | AXLE BEVEL GEAR | Transfers power to axle shafts |
| 5838300633 | AXLE | Connects differential to wheel hubs |
| 5838300753 | THRUST WASHER | Reduces friction on gear side faces |
| 5838300818 | THRUST WASHER | Secondary axial clearance control |
Frequently Asked Questions
Q: Can I replace just the helical gear without replacing the differential?
A: Yes, if the differential shows no signs of wear or pitting. However, we recommend inspecting the 5838109012: DIFFERENTIAL and the 0750117075: TAPER ROLLER BEARING at the same time to avoid recurring failures.
Q: How do I confirm the helix angle matches my transmission?
A: Measure the existing gear’s tooth angle using a protractor or gear gauge. The ZF 2093.303.087 uses a 15° helix. If your gear is 20° or 25°, this part will not mesh correctly.
Q: Is this gear compatible with the WG131 automatic transmission?
A: Yes, the WG131 uses the same auxiliary drive gear set as the WG100 and WG130. Verify the part number stamped on your old gear matches 2093.303.087 before installation.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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ZF 2093.303.087 HELICAL GEAR – Gear RFQ Support
PartsZF helps B2B buyers source ZF 2093.303.087 HELICAL 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 2093.303.087 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Illustration section: COUNTERSHAFT
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 | 2093.303.087 |
|---|---|
| Normalized SKU | 2093303087 |
| Part name | HELICAL GEAR |
| Product category | gear |
| Cross-reference support | Available for RFQ review |
Image and Documentation Notes
Current product media status: diagram. 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
