Overview
The ZF 2093.309.094 PLANETARY GEAR is a critical torque-multiplying component engineered specifically for the final drive assembly of ZF WG-series transmissions. This OEM genuine part sits at the heart of the planetary gear set, transferring rotational force from the sun gear to the carrier while managing extreme load distribution. The SKU 2093.309.094 is precision-machined to maintain exact gear mesh alignment, ensuring smooth power delivery in heavy-duty applications. When installed alongside the 2093109063: DIFFERENTIAL, this planetary gear forms the core of the drivetrain’s reduction system.
Symptoms of Failure
- Whining or grinding noise during acceleration: Worn planetary gear teeth produce a distinct high-pitched whine that intensifies under load, often mistaken for differential noise.
- Intermittent gear slipping under heavy torque: Damaged gear faces cause momentary loss of power transfer, particularly when climbing grades or hauling maximum loads.
- Metallic debris in transmission fluid: Flaking or pitting on the planetary gear surface sheds microscopic steel particles, visible during routine fluid changes.
- Vibration through the chassis at highway speeds: Uneven wear on the planetary gear creates harmonic oscillations that resonate through the driveline.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (SKU) | 2093.309.094 |
| Gear Type | Planetary (Sun/Planet/Carrier) |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Outer Diameter | ~145 mm |
| Tooth Count | 18 (sun gear interface) |
| Weight | ~2.8 kg |
| OEM Reference | ZF 2093.309.094 |
| Hardness | 58-62 HRC (case depth 0.8-1.2 mm) |
Compatibility
This planetary gear is designed for ZF WG100, WG130, and WG131 transmission models. It also serves as a direct replacement in select WG180 and WG200 final drives when paired with the correct 0750117075: TAPER ROLLER BEARING and 2093209094: DIFFERENTIAL assembly. Always verify housing compatibility with the 2093309078: DIFF.HOUSING before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093109063 | DIFFERENTIAL | Distributes torque to axle shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports planetary carrier rotation |
| 2093209094 | DIFFERENTIAL | Secondary torque distribution unit |
| 2093309078 | DIFF.HOUSING | Encloses differential assembly |
| 0631100223 | SPRING PIN | Secures gear alignment dowels |
| 0730300820 | THRUST WASHER | Controls axial gear clearance |
| 4482360002 | AXLE BEVEL GEAR | Transfers power to wheel hubs |
| 2097309085 | DIFFERENTIAL AXLE | Connects differential to planetary set |
| 5838300811 | THRUST WASHER | Reduces friction on gear faces |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Meshes with axle bevel gear |
Frequently Asked Questions
Q: Can the 2093.309.094 planetary gear be installed without replacing the taper roller bearing?
A: It is strongly recommended to replace the 0750117075: TAPER ROLLER BEARING simultaneously, as worn bearings accelerate planetary gear wear.
Q: What is the typical service life of this planetary gear in a WG130 transmission?
A: Under normal operating conditions with proper lubrication, the OEM gear typically lasts 8,000-12,000 hours before requiring inspection.
Q: Does this part fit WG180 transmissions with the 2093209094 differential?
A: Yes, but you must verify the 2093309078: DIFF.HOUSING casting number matches your application, as housing variations affect gear clearance.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
Request a Quote →
ZF 2093.309.094 PLANETARY GEAR – Gear RFQ Support
ZF 2093.309.094 PLANETARY GEAR is handled as a gear-train sourcing item for transmission repair teams. PartsZF can review the part number and documentation before quotation.
Part-Number Summary
Use ZF number 2093.309.094 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Illustration section: OUTPUT
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 | 2093.309.094 |
|---|---|
| Normalized SKU | 2093309094 |
| Part name | PLANETARY 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.
Related Parts
- ZF 4661.302.010 GEAR
- ZF 2094.306.024 GEAR SHIFT RAIL
- ZF 4642.353.026 SPUR GEAR
- ZF 4143.142.013 GEAR SHIFT SENSOR
- ZF 4143.142.022 GEAR SHIFT SENSOR
