Overview
The ZF 2095.309.071 SUN GEAR SHAFT is a critical internal component designed for the planetary gear set within ZF WG100, WG130, and WG131 transmissions. This genuine OEM part transfers torque from the input shaft to the planetary gears, enabling smooth power distribution and gear reduction. The sun gear shaft sits at the center of the planetary assembly, meshing directly with planet gears to regulate rotational speed. As an OEM part, the SKU 2095.309.071 ensures precise spline alignment and metallurgical integrity, preventing premature wear in heavy-duty industrial applications. When paired with a compatible 2095109009: DIFFERENTIAL, this shaft maintains drivetrain stability under high load conditions.
Symptoms of Failure
- Gear Slipping Under Load: Worn splines or hardened teeth on the sun gear shaft cause intermittent power loss during acceleration or climbing, often accompanied by a grinding noise.
- Metallic Debris in Transmission Oil: Flaking or pitting on the shaft surface contaminates the lubricant, leading to accelerated wear of adjacent components like the 0750117075: TAPER ROLLER BEARING.
- Vibration at Specific RPM Ranges: Uneven tooth wear creates harmonic vibrations that resonate through the transmission housing, particularly noticeable in WG130 models.
- Oil Leaks from Output Seal Area: A warped or cracked sun gear shaft can misalign the output shaft, causing seal failure and fluid seepage around the differential housing.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number (SKU) | 2095.309.071 |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Overall Length | 185 mm (estimated) |
| Outer Diameter (Sun Gear) | 42 mm (estimated) |
| Spline Count | 24 (internal), 18 (external) |
| Weight | 1.8 kg (4.0 lbs) |
| OEM Reference | ZF 2095.309.071 |
| Heat Treatment | Carburized & tempered to HRC 58-62 |
Compatibility
This sun gear shaft is engineered for ZF WG-series transmissions, specifically the WG100, WG130, and WG131 models. It is also compatible with certain WG180 and WG200 variants that share the same planetary gear architecture. For differential assemblies, verify fitment with the 2095209037: DIFFERENTIAL and the 2095309059: DIFF.HOUSING to ensure proper gear mesh. Always cross-reference your transmission serial number before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2095109009 | DIFFERENTIAL | Distributes torque between axles |
| 0750117075 | TAPER ROLLER BEARING | Supports radial and axial loads on shaft |
| 2095209037 | DIFFERENTIAL | Secondary torque distribution unit |
| 2095309059 | DIFF.HOUSING | Encloses differential gear set |
| 0631329086 | SPRING PIN | Secures shaft alignment in bore |
| 0730300820 | THRUST WASHER | Reduces axial friction on gear faces |
| 4482360002 | AXLE BEVEL GEAR | Transfers power to wheel axles |
| 2095309081 | DIFFERENTIAL AXLE | Connects differential to wheel hub |
| 5838300811 | THRUST WASHER | Controls axial play in planetary set |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Engages with axle bevel gear |
ZF 2095.309.071 SUN GEAR SHAFT – Shaft RFQ Support
PartsZF supports RFQ preparation for ZF 2095.309.071 SUN GEAR SHAFT where shaft identification and documentation review are required before ordering.
Part-Number Summary
Use ZF number 2095.309.071 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Illustration section: DIFFERENTIAL
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 | 2095.309.071 |
|---|---|
| Normalized SKU | 2095309071 |
| Part name | SUN GEAR 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
