Overview
The ZF 2093.310.099 DOUBLE GEAR is a critical OEM genuine component engineered for the auxiliary drive and countershaft assemblies within ZF’s WG100, WG130, and WG131 transmission series. This part functions as a dual-gear cluster, transferring torque between parallel shafts to facilitate smooth ratio changes under load. The SKU 2093.310.099 is precision-machined to maintain exact gear mesh alignment, reducing parasitic drag and extending the service life of the entire drivetrain. It sits directly adjacent to the differential assembly, where it works in concert with the 2093109013: DIFFERENTIAL to manage power distribution.
Symptoms of Failure
- Whining or howling noise during deceleration: Worn gear teeth on the 2093.310.099 produce a distinct high-pitched sound, often mistaken for wheel bearing failure.
- Intermittent gear slipping under load: When the double gear loses tooth profile integrity, the transmission may momentarily lose drive engagement, especially when climbing grades.
- Metallic debris in transmission fluid: Flaking or pitting on the gear surface contaminates the oil, which can accelerate wear on the 0750117075: TAPER ROLLER BEARING and adjacent shafts.
- Vibration through the gearshift lever: Excessive backlash from a worn double gear creates harmonic vibration felt directly in the operator cab.
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 2093.310.099 |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Weight | 2.85 kg (6.28 lbs) |
| Outer Diameter | 112 mm (primary gear) |
| Inner Bore Diameter | 25 mm |
| Number of Teeth | 28 (primary) / 22 (secondary) |
| Heat Treatment | Carburized & tempered to HRC 58-62 |
Compatibility
This genuine ZF double gear is specifically validated for the following transmission models: WG100, WG130, and WG131. It is also compatible with certain variants of the WG180 and WG200 series when used in conjunction with the 2093209096: DIFFERENTIAL and the 2093309073: DIFF.HOUSING. Always verify the gear ratio and shaft spline count before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093109013 | DIFFERENTIAL | Distributes torque between axles |
| 0750117075 | TAPER ROLLER BEARING | Supports radial and axial loads on gear shafts |
| 2093209096 | DIFFERENTIAL | Secondary differential for multi-axle configurations |
| 2093309073 | DIFF.HOUSING | Encloses and protects differential gears |
| 0631100223 | SPRING PIN | Secures gear alignment during assembly |
| 0730300820 | THRUST WASHER | Controls axial clearance between rotating gears |
| 4482360002 | AXLE BEVEL GEAR | Transfers power at right angles to wheel axles |
| 2097309085 | DIFFERENTIAL AXLE | Carries differential side gears |
| 5838300811 | THRUST WASHER | Reduces friction on differential cross shaft |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Engages with axle bevel gear for final drive |
Frequently Asked Questions
Q: Can the ZF 2093.310.099 double gear be replaced without removing the entire transmission?
A: In most WG100/WG130 applications, the double gear is accessible after removing the PTO cover and countershaft end cap. However, the 2093309073: DIFF.HOUSING must be unbolted to access the retaining snap rings.
Q: How do I identify a counterfeit 2093.310.099 gear?
A: Genuine ZF parts have a laser-etched part number and a distinct case-hardening color (dark gray). Counterfeits often show uneven tooth spacing and lack the OEM heat-treatment stamp on the gear face.
Q: What is the typical lifespan of this double gear under normal operating conditions?
A: With proper lubrication and no contamination, the 2093.310.099 typically lasts 8,000–12,000 operating hours. Premature failure often occurs if the 0750117075: TAPER ROLLER BEARING is not replaced simultaneously.
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ZF 2093.310.099 DOUBLE GEAR – Gear RFQ Support
PartsZF helps B2B buyers source ZF 2093.310.099 DOUBLE 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 2093.310.099 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
- Illustration section: KIT 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 | 2093.310.099 |
|---|---|
| Normalized SKU | 2093310099 |
| Part name | DOUBLE 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
