Overview
The ZF 2095.309.070 SUN GEAR SHAFT (SKU: 2095.309.070) is a critical rotating component located within the planetary gearset of ZF WG-series transmissions. It transmits torque from the input shaft to the planetary pinions, directly influencing gear ratio engagement and load distribution. As an OEM genuine part, it ensures precise spline alignment and metallurgical integrity for heavy-duty industrial applications. This sun gear shaft works in concert with the 5838109006 DIFFERENTIAL to manage power flow under high-stress conditions.
Symptoms of Failure
- Erratic gear engagement or slipping: Worn splines on the sun gear shaft cause intermittent power loss, especially under load, leading to delayed or rough shifting.
- Metallic grinding noise from the transmission housing: Pitting or spalling on the sun gear teeth produces a distinct whine or grind during acceleration, often misdiagnosed as bearing failure.
- Contaminated transmission fluid with metal particles: Advanced wear releases ferrous debris into the oil, visible during drain intervals, indicating imminent sun gear shaft failure.
- Vibration at specific RPM ranges: A damaged shaft creates imbalance in the planetary set, causing resonant vibrations that worsen with speed.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2095.309.070 |
| OEM Reference | ZF 2095.309.070 |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Overall Length | 185 mm (approx.) |
| Spline Diameter | 32 mm (major diameter) |
| Weight | 1.45 kg (3.2 lbs) |
| Heat Treatment | Carburized & tempered to HRC 58-62 |
Compatibility
This sun gear shaft is engineered for ZF WG100, WG130, and WG131 transmissions. It is also compatible with select variants of the WG180 and WG200 series where planetary gear sets share identical spline geometry. Always verify your transmission serial number against OEM fitment data. For differential-side support, pair this shaft with the 0750117075 TAPER ROLLER BEARING and the 2095209037 DIFFERENTIAL to ensure proper axial preload.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838109006 | DIFFERENTIAL | Distributes torque between output shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports radial and axial loads on shaft |
| 2095209037 | DIFFERENTIAL | Secondary torque distribution unit |
| 2095309059 | DIFF.HOUSING | Encloses differential gear assembly |
| 0631329086 | SPRING PIN | Secures shaft alignment within carrier |
| 0730300820 | THRUST WASHER | Controls axial end-play of gear set |
| 4482360002 | AXLE BEVEL GEAR | Transfers power to axle shafts |
| 2095309081 | DIFFERENTIAL AXLE | Connects differential to wheel hubs |
| 5838300811 | THRUST WASHER | Reduces friction in planetary carrier |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Mesh with axle bevel gear for rotation |
ZF 2095.309.070 SUN GEAR SHAFT – Shaft RFQ Support
PartsZF helps B2B buyers source ZF 2095.309.070 SUN GEAR SHAFT with fast RFQ support, expert part-number lookup, documentation review, and export coordination. This shaft 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 2095.309.070 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 | 2095.309.070 |
|---|---|
| Normalized SKU | 2095309070 |
| Part name | SUN GEAR SHAFT |
| Product category | shaft |
| 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 4646.302.141 INPUT SHAFT
- ZF 4646.323.010 OUTPUT SHAFT
- ZF 4646.304.069 OUTPUT SHAFT
- ZF 4646.304.065 QUILL SHAFT
- ZF 4657.354.010 INPUT SHAFT
