Overview
The ZF 2097.311.009 GEAR RING is a critical component within the planetary gearset of the WG100, WG130, and WG131 transmission series. This OEM genuine part functions as the primary torque-transfer interface between the sun gear and the planetary carriers, ensuring smooth power delivery under heavy load conditions. The SKU 2097.311.009 is precision-machined to maintain exact tooth geometry, which is essential for preventing backlash and ensuring synchronized gear engagement. When installed, this gear ring works in concert with the 2093109021: DIFFERENTIAL to distribute rotational force evenly across the axle assembly.
Symptoms of Failure
- Whining or howling noise during acceleration: A worn gear ring produces a distinct high-pitched whine that intensifies under load, often misdiagnosed as a bearing issue. This noise indicates uneven tooth wear or pitting on the ring gear surface.
- Intermittent gear slipping under torque: When the gear ring loses its hardened surface layer, the transmission may momentarily lose power transfer, causing a “skip” sensation during hill climbs or heavy hauling.
- Metallic debris in transmission fluid: Flakes or silver particles in the oil pan signal that the gear ring’s teeth are spalling. This is a progressive failure that will contaminate the 0750117075: TAPER ROLLER BEARING and other rotating assemblies.
- Vibration in the driveline at specific RPMs: A damaged gear ring creates harmonic vibrations that are most noticeable between 1800-2200 RPM, often accompanied by a rhythmic clunking sound.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2097.311.009 |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Outer Diameter | 198.5 mm |
| Inner Diameter | 142.0 mm |
| Tooth Count | 48 (internal helical) |
| Weight | 2.85 kg |
| OEM Reference | ZF 2097.311.009 |
| Hardness | 58-62 HRC (case depth 0.8-1.2 mm) |
Compatibility
This gear ring is specifically engineered for ZF WG100, WG130, and WG131 transmissions, which are commonly found in medium-duty trucks, agricultural tractors, and construction loaders. It also fits select variants of the WG180 and WG200 series when used with the correct carrier assembly. For optimal performance, always pair this part with the 2093209096: DIFFERENTIAL and the 2093309073: DIFF.HOUSING to maintain proper gear mesh alignment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093109021 | DIFFERENTIAL | Distributes torque between axle shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports radial and axial loads on gear shafts |
| 2093209096 | DIFFERENTIAL | Secondary torque split unit for heavy-duty applications |
| 2093309073 | DIFF.HOUSING | Encloses and aligns differential gears |
| 0631100223 | SPRING PIN | Secures gear ring to carrier hub |
| 0730300820 | THRUST WASHER | Reduces axial friction between rotating gears |
| 4482360002 | AXLE BEVEL GEAR | Transfers power at 90-degree angle to wheel hubs |
| 2097309085 | DIFFERENTIAL AXLE | Carries side gears within differential case |
| 5838300811 | THRUST WASHER | Prevents gear end-play in differential assembly |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Provides final gear reduction before axle output |
Frequently Asked Questions
Q: Can I reuse the old taper roller bearing when replacing the gear ring?
A: No. The 0750117075: TAPER ROLLER BEARING should always be replaced simultaneously because worn bearings create uneven loading that will rapidly damage a new gear ring.
Q: How do I verify the gear ring is the correct fit for my WG130 transmission?
A: Check the stamped serial number on the transmission housing. The 2097.311.009 gear ring fits WG130 units with production dates after 2012. Earlier models may require the 2093209096: DIFFERENTIAL adapter kit.
Q: What is the expected service life of this OEM gear ring under normal conditions?
A: With proper lubrication and regular fluid changes, the 2097.311.009 gear ring typically lasts 8,000-12,000 operating hours before showing measurable wear. Harsh environments with frequent shock loads will reduce this interval.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
Request a Quote →
ZF 2097.311.009 GEAR RING – Gear RFQ Support
PartsZF helps B2B buyers source ZF 2097.311.009 GEAR RING 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 2097.311.009 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 | 2097.311.009 |
|---|---|
| Normalized SKU | 2097311009 |
| Part name | GEAR RING |
| 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
