Overview
The ZF 2099.364.019 PINION SHAFT is a critical rotating component within the final drive assembly of ZF WG-series transmissions. This OEM genuine part transmits torque from the driveline directly into the differential carrier, converting rotational force into the mechanical power needed to drive the axles. As the primary input shaft for the differential set, it engages precisely with the crown wheel and pinion gear set. The SKU 2099.364.019 is engineered to OEM tolerances, ensuring minimal backlash and quiet operation under heavy loads. This pinion shaft sits at the heart of the axle drive, interfacing directly with the 2099109002: DIFFERENTIAL and the 2099364014: CROWN WHEEL to deliver reliable power distribution.
Symptoms of Failure
- Whining or howling noise from the axle: A worn pinion shaft bearing journal or damaged gear teeth produce a distinct high-pitched whine during acceleration or deceleration, often mistaken for tire noise.
- Excessive driveline backlash: When the pinion shaft splines or gear teeth wear, you will feel a noticeable clunk when shifting between drive and reverse, or when the throttle is applied and released.
- Oil leaks near the pinion seal area: A failing shaft surface or worn bearing allows lubricant to escape past the pinion seal, leaving visible drips on the differential housing or under the vehicle.
- Vibration at highway speeds: A bent or unbalanced pinion shaft causes rhythmic vibrations that intensify with speed, often accompanied by a low-frequency hum from the 2099209001: DIFFERENTIAL assembly.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 2099.364.019 |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Overall Length | 285 mm (estimated) |
| Spline Diameter | 32 mm (estimated) |
| Weight | 4.2 kg (9.3 lbs) |
| OEM Reference | ZF 2099.364.019 |
| Heat Treatment | Carburized & tempered to HRC 58-62 |
Compatibility
This pinion shaft is designed for the ZF WG100, WG130, and WG131 transmission families. It is a direct-fit component for final drive assemblies used in medium-duty trucks, buses, and off-highway equipment. The 2099.364.019 also shares compatibility with select variants of the WG180 and WG200 series when used with the correct 2098309010: DIFFERENTIAL HOUSING. Always verify your transmission model and axle ratio before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2099109002 | DIFFERENTIAL | Distributes torque to axle shafts |
| 2099364014 | CROWN WHEEL | Meshes with pinion shaft for gear reduction |
| 2099209001 | DIFFERENTIAL | Alternate differential assembly for WG130 |
| 2098309010 | DIFFERENTIAL HOUSING | Encloses differential and pinion shaft |
| 2098309009 | DIFFERENTIAL HOUSING | Housing variant for WG100 series |
| 2098309031 | AXLE BEVEL GEAR | Transfers power to axle shafts |
| 2098309030 | AXLE BEVEL GEAR | Matching bevel gear for differential set |
| 2098309032 | DIFFERENTIAL BEVEL GEAR | Internal gear for differential action |
| 12883200682 | THRUST WASHER | Controls axial play in differential |
| 0635332059 | BALL BEARING | Supports pinion shaft rotation |
ZF 2099.364.019 PINION SHAFT – Shaft RFQ Support
PartsZF supports RFQ preparation for ZF 2099.364.019 PINION SHAFT where shaft identification and documentation review are required before ordering.
Part-Number Summary
Use ZF number 2099.364.019 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 | 2099.364.019 |
|---|---|
| Normalized SKU | 2099364019 |
| Part name | PINION 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
