Overview
The ZF 2093.303.067 HELICAL GEAR is a precision-engineered component designed for the auxiliary drive and countershaft assembly within ZF WG100, WG130, and WG131 transmissions. This OEM genuine part transmits torque smoothly while reducing noise and vibration through its angled tooth profile. The SKU 2093.303.067 sits directly on the countershaft, meshing with corresponding gears to ensure consistent power flow in heavy-duty industrial drivetrains. Its helical design provides greater load capacity and quieter operation compared to spur gears, making it critical for long-haul and off-highway applications.
Symptoms of Failure
- Whining or howling noise during gear engagement — Worn teeth on the 2093.303.067 produce a distinct high-pitched sound, especially under load. This is a common search query for “ZF transmission whining noise when accelerating.”
- Intermittent gear slipping or jumping out of gear — As the helical gear loses tooth profile integrity, it fails to maintain proper mesh, causing unexpected disengagement. This matches searches like “WG130 gear slipping under load.”
- Metal particles in transmission oil — Flaking or pitting on the gear surface sheds debris into the lubricant. Users often search for “metal shavings in ZF transmission oil.”
- Vibration through the gear lever or driveline — Uneven wear on the helical gear creates imbalance, transmitting shudder through the assembly. This aligns with “ZF transmission vibration at highway speed.”
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 2093.303.067 |
| Gear Type | Helical, hardened steel |
| Module | 4.5 (estimated) |
| Number of Teeth | 37 (estimated) |
| Outside Diameter | 175 mm (approx.) |
| Face Width | 45 mm (approx.) |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Weight | 2.8 kg (approx.) |
| OEM Reference | ZF 2093.303.067 |
Compatibility
This helical gear is engineered specifically for ZF WG-series transmissions, including the WG100, WG130, and WG131 models. It also fits select variants of the WG180 and WG200 when used in auxiliary drive positions. Always verify the gear tooth count and shaft spline configuration before installation. For proper assembly, this gear works in conjunction with the 2093101011 HOUSING and the 2093301027 HOUSING to ensure correct alignment. The 0730365092 TYPE PLATE provides model identification, while the 0631311009 GROOVED STUD secures the housing assembly.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093101011 | HOUSING | Encloses and supports the gear assembly |
| 2093301027 | HOUSING | Secondary housing for countershaft support |
| 0730365092 | TYPE PLATE | Identifies transmission model and specs |
| 0631311009 | GROOVED STUD | Secures housing components together |
| 2093301021 | GASKET | Prevents oil leaks between housing joints |
| 0634306328 | O-RING | Seals shaft passages against fluid loss |
| 2093103025 | COUNTERSHAFT | Carries the helical gear and transmits torque |
| 2093303040 | COUNTERSHAFT | Alternate countershaft for WG130/131 |
| 2093303087 | HELICAL GEAR | Matching gear for auxiliary drive pairing |
| 0501007515 | SYNCHRONIZER | Ensures smooth gear engagement |
Frequently Asked Questions
Q: How do I know if the 2093.303.067 helical gear is worn out?
A: Listen for a persistent whining noise during acceleration or deceleration, especially in lower gears. Also check for metal particles in the transmission oil during routine changes—this indicates pitting or chipping on the gear teeth.
Q: Can I replace just the helical gear without replacing the countershaft?
A: Yes, in most cases the 2093.303.067 can be replaced independently. However, inspect the mating countershaft (such as 2093103025 COUNTERSHAFT) for wear on the splines or bearing surfaces. If damage is present, replace both components to avoid premature failure.
Q: What seals should I replace when installing this gear?
A: Always install a new 2093301021 GASKET and 0634306328 O-RING to prevent oil leaks. The housings (2093101011 and 2093301027) should be cleaned and inspected for cracks before reassembly.
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ZF 2093.303.067 HELICAL GEAR – Gear RFQ Support
ZF 2093.303.067 HELICAL 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 2093.303.067 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 | 2093.303.067 |
|---|---|
| Normalized SKU | 2093303067 |
| Part name | HELICAL 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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- ZF 4143.142.022 GEAR SHIFT SENSOR
