Overview
The ZF 2093.309.018 PLANETARY GEAR is a critical power-dividing component engineered for the final drive assembly of ZF WG100, WG130, and WG131 transmissions. This OEM genuine part sits at the heart of the planetary gear set, transferring torque from the sun gear to the ring gear while reducing rotational speed and multiplying output torque. As a genuine ZF component, SKU 2093.309.018 ensures precise tooth geometry and metallurgical integrity, directly influencing driveline efficiency and load distribution. When paired with a 2093109002: DIFFERENTIAL, this planetary gear enables smooth power delivery under heavy loads, making it indispensable for agricultural and construction machinery applications.
Symptoms of Failure
- Whining or grinding noise during turns: Worn planetary gear teeth produce a distinct metallic whine, especially under load. This often indicates pitting or spalling on the gear flanks, which accelerates if the 0750117075: TAPER ROLLER BEARING supporting the gear set loses preload.
- Intermittent gear slipping or hesitation: As the planetary gear loses tooth contact integrity, the transmission may momentarily slip under acceleration, particularly when shifting between forward and reverse.
- Metallic debris in transmission fluid: Flaking or fractured gear teeth shed ferrous particles into the oil, visible during routine fluid changes. This contamination can damage the 2093209095: DIFFERENTIAL and other downstream components.
- Vibration at specific RPM ranges: A worn planetary gear creates harmonic vibrations felt through the chassis, often misdiagnosed as driveline imbalance.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 2093.309.018 |
| Gear Type | Planetary (sun/planet/carrier assembly) |
| Outer Diameter | Approx. 180 mm |
| Inner Bore Diameter | 45 mm |
| Tooth Count | 18 (sun gear) / 36 (planet gears) |
| Material | Case-hardened alloy steel (20MnCr5) |
| Weight | 2.85 kg |
| OEM Reference | ZF 2093.309.018 |
| Heat Treatment | Carburized & quenched (58-62 HRC) |
Compatibility
This planetary gear is specifically designed for ZF WG-series transmissions with a modular final drive architecture. Verified compatible models include: WG100, WG130, WG131, WG180, WG200, and WG250. It also fits select ZF T-7000 series transmissions when used with the correct 2093309071: DIFF.HOUSING. Always verify the gear ratio and spline count against your transmission’s service manual before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093109002 | DIFFERENTIAL | Distributes torque between axles |
| 0750117075 | TAPER ROLLER BEARING | Supports planetary gear shaft |
| 2093209095 | DIFFERENTIAL | Secondary torque split unit |
| 2093309071 | DIFF.HOUSING | Encloses differential assembly |
| 0631100223 | SPRING PIN | Secures gear alignment |
| 0730300820 | THRUST WASHER | Reduces axial play |
| 4482360002 | AXLE BEVEL GEAR | Transfers power to wheel hub |
| 2097309085 | DIFFERENTIAL AXLE | Connects differential to planetary |
| 5838300811 | THRUST WASHER | Controls gear end float |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Mates with axle bevel gear |
Frequently Asked Questions
Q: Can I replace just the planetary gear without replacing the differential?
A: Yes, but we strongly recommend inspecting the 2093109002: DIFFERENTIAL and 0750117075: TAPER ROLLER BEARING for wear. Metal contamination from a failed planetary gear often damages these mating components.
Q: How do I verify if this gear fits my WG130 transmission?
A: Check the transmission serial number plate. WG130 units built after 2015 use a 45mm bore; earlier models may require the 2093309071: DIFF.HOUSING adapter.
Q: What is the expected service life of this planetary gear?
A: Under normal operating conditions with proper lubrication, the gear lasts 8,000-12,000 hours. Premature failure is often linked to a failing 2093209095: DIFFERENTIAL or contaminated oil.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
Request a Quote →
ZF 2093.309.018 PLANETARY GEAR – Gear RFQ Support
PartsZF helps B2B buyers source ZF 2093.309.018 PLANETARY GEAR with fast RFQ support, expert part-number lookup, documentation review, and export coordination. This gear 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 2093.309.018 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 HOUSING
- 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 | 2093.309.018 |
|---|---|
| Normalized SKU | 2093309018 |
| Part name | PLANETARY GEAR |
| Product category | gear |
| 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 4646.302.128 HELICAL GEAR
- ZF 4143.316.088 PINION
- ZF 4657.302.007 INPUT GEAR
- ZF 4657.354.044 OUTPUT GEAR
- ZF 4644.306.326 GEAR SHIFT HOUSING
