Overview
The ZF 2099.346.004 QUILL SHAFT is a precision-engineered OEM genuine component designed for the internal power transfer assembly of ZF WG100, WG130, and WG131 transmissions. This quill shaft acts as a central torque conduit, transmitting rotational force from the input shaft to the planetary gear sets while supporting the 2099109002 DIFFERENTIAL and 2099364014 CROWN WHEEL within the gear train. Manufactured to exact OEM tolerances, SKU 2099.346.004 ensures minimal backlash and consistent load distribution across the driveline. Its location within the transmission housing makes it a critical link between the engine output and the final drive assembly, directly influencing shift quality and overall gearbox longevity.
Symptoms of Failure
- Transmission whining or grinding noise during acceleration: A worn quill shaft often produces a high-pitched metallic whine, especially under load, as the shaft surface wears against its bearing journals.
- Intermittent gear slipping or delayed engagement: When the quill shaft loses its surface hardness or develops scoring, torque transfer becomes inconsistent, causing the transmission to hesitate or slip between gears.
- Oil contamination with metallic debris: Flaking or spalling of the quill shaft material introduces fine steel particles into the transmission fluid, visible during oil changes as a glittering sludge.
- Vibration in the driveline at highway speeds: A bent or unbalanced quill shaft creates rhythmic vibrations that intensify with RPM, often misdiagnosed as a failing 2099209001 DIFFERENTIAL.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2099.346.004 |
| Overall Length | 312 mm (estimated) |
| Outer Diameter (bearing journal) | 45 mm |
| Spline Count | 24-tooth involute spline |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Weight | 2.85 kg (6.3 lbs) |
| OEM Reference | ZF 2099.346.004 (genuine) |
| Surface Hardness | 58-62 HRC |
Compatibility
This quill shaft is specifically engineered for ZF WG-series transmissions. Verified compatible models include:
- ZF WG100
- ZF WG130
- ZF WG131
It may also be used in select ZF WG180 and WG200 variants where the shaft length and spline configuration match. Always cross-reference your transmission serial number with the 2098309010 DIFFERENTIAL HOUSING dimensions to confirm fitment. For rebuilds, this shaft is frequently paired with the 2098309031 AXLE BEVEL GEAR and 2098309030 AXLE BEVEL GEAR to restore full gear train integrity.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2099109002 | DIFFERENTIAL | Distributes torque between drive wheels |
| 2099364014 | CROWN WHEEL | Transfers power from pinion to differential |
| 2099209001 | DIFFERENTIAL | Alternate differential assembly for WG130 |
| 2098309010 | DIFFERENTIAL HOUSING | Encloses differential gears and shaft |
| 2098309009 | DIFFERENTIAL HOUSING | Housing variant for WG100 series |
| 2098309031 | AXLE BEVEL GEAR | Drives axle shaft from differential |
| 2098309030 | AXLE BEVEL GEAR | Matching bevel gear for opposite side |
| 2098309032 | DIFFERENTIAL BEVEL GEAR | Spider gear inside differential case |
| 12883200682 | THRUST WASHER | Reduces axial play on shaft ends |
| 0635332059 | BALL BEARING | Supports quill shaft rotation |
ZF 2099.346.004 QUILL SHAFT – Shaft RFQ Support
For ZF 2099.346.004 QUILL SHAFT, send the part number, removed-part photos, and application context so PartsZF can prepare a focused sourcing response.
Part-Number Summary
Use ZF number 2099.346.004 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
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 | 2099.346.004 |
|---|---|
| Normalized SKU | 2099346004 |
| Part name | QUILL SHAFT |
| Product category | shaft |
| 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.
Related Parts
- ZF 2094.110.011 P.T.O. SHAFT
- ZF 2094.110.014 P.T.O. SHAFT
- ZF 4642.303.002 OUTPUT SHAFT
- ZF 2093.110.011 P.T.O. SHAFT
- ZF 5838.300.106 INPUT SHAFT
