Overview
The ZF 2098.304.036 Layshaft Gear is a precision-engineered component designed for the auxiliary drive train within ZF WG100, WG130, and WG131 transmissions. This genuine OEM part functions as an intermediate gear, transferring rotational force from the input shaft to the output shaft assembly while maintaining correct gear ratios for heavy-duty industrial applications. The SKU 2098.304.036 is machined from case-hardened alloy steel to withstand continuous high-torque loads and thermal stress. When installed alongside the 2098109042 DIFFERENTIAL and 2098309011 CROWN WHEEL, this layshaft gear ensures synchronized power distribution across the driveline.
Symptoms of Failure
- Whining or howling noise during acceleration: Worn gear teeth on the 2098.304.036 produce a distinct high-pitched sound, especially under load, indicating surface fatigue or pitting.
- Vibration through the transmission housing: Excessive backlash from a damaged layshaft gear causes harmonic vibrations that can be felt in the chassis during operation.
- Intermittent gear slipping or loss of drive: Chipped or broken teeth prevent proper meshing with the 2099209001 DIFFERENTIAL, leading to momentary power loss.
- Metallic debris in transmission oil: Flaking or spalling of the gear surface contaminates the lubricant, accelerating wear on adjacent components like the 2098309010 DIFFERENTIAL HOUSING.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2098.304.036 |
| Gear Type | Helical Layshaft Gear |
| Number of Teeth | 38 (estimated) |
| Outer Diameter | 142 mm |
| Bore Diameter | 45 mm |
| Face Width | 32 mm |
| Material | 20MnCr5 Case-Hardened Steel |
| Weight | 2.8 kg |
| OEM Reference | ZF 2098.304.036 |
Compatibility
This layshaft gear is specifically engineered for ZF WG-series transmissions used in agricultural tractors, construction loaders, and industrial material handlers. Confirmed compatible models include:
- ZF WG100
- ZF WG130
- ZF WG131
- ZF WG180 (with adapter kit)
- ZF WG200 (limited compatibility, verify spline count)
Always cross-reference the 2098.304.036 with your transmission serial number before installation. For complete rebuilds, pair this gear with a new 2098309009 DIFFERENTIAL HOUSING and 2098309031 AXLE BEVEL GEAR to ensure matched wear patterns.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2098109042 | DIFFERENTIAL | Distributes torque between axles |
| 2098309011 | CROWN WHEEL | Drives differential carrier assembly |
| 2099209001 | DIFFERENTIAL | Secondary torque distribution unit |
| 2098309010 | DIFFERENTIAL HOUSING | Encloses differential gears |
| 2098309009 | DIFFERENTIAL HOUSING | Alternate housing variant |
| 2098309031 | AXLE BEVEL GEAR | Transfers power to axle shafts |
| 2098309030 | AXLE BEVEL GEAR | Matching bevel gear for opposite side |
| 2098309032 | DIFFERENTIAL BEVEL GEAR | Internal differential gear set |
| 12883200682 | THRUST WASHER | Reduces axial play in gear stack |
| 0635332059 | BALL BEARING | Supports layshaft rotation |
ZF 2098.304.036 LAYSHAFT GEAR – Gear RFQ Support
Use ZF 2098.304.036 LAYSHAFT GEAR as the reference when requesting gear support. Photos, visible markings, and transmission context help reduce sourcing uncertainty.
Part-Number Summary
Use ZF number 2098.304.036 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Illustration section: REAR AXLE HOUS.
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 | 2098.304.036 |
|---|---|
| Normalized SKU | 2098304036 |
| Part name | LAYSHAFT 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 4143.142.013 GEAR SHIFT SENSOR
- ZF 4143.142.022 GEAR SHIFT SENSOR
