Overview
The ZF 2093.311.027 RING GEAR is a critical component within the final drive assembly of ZF WG100, WG130, and WG131 transmissions. This OEM genuine part transfers torque from the differential case to the axle shafts, enabling smooth power delivery to the wheels. As a precision-machined gear, it meshes directly with the pinion gear inside the differential housing. The SKU 2093.311.027 is engineered to OEM tolerances, ensuring proper backlash and load distribution across the drivetrain. This ring gear works in concert with the 2093109063: DIFFERENTIAL to convert rotational force into linear motion, making it indispensable for heavy-duty industrial applications.
Symptoms of Failure
- Whining or howling noise during acceleration: A worn ring gear produces a distinct high-pitched whine that intensifies under load, often indicating uneven tooth wear or pitting.
- Vibration in the driveline at highway speeds: Damaged gear teeth cause cyclic vibrations felt through the chassis, a common symptom when the ring gear has lost its proper tooth profile.
- Oil leaks near the differential housing: Excessive play in the ring gear can stress seals, leading to gear oil seepage around the axle flanges.
- Gear slipping or clunking when shifting: Backlash exceeding specifications results in a metallic clunk during gear engagement, signaling imminent ring gear failure.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2093.311.027 |
| Outer Diameter | ~280 mm (estimated) |
| Inner Diameter | ~180 mm (estimated) |
| Tooth Count | 37 teeth (typical for WG100 series) |
| Material | Case-hardened alloy steel (20MnCr5) |
| Weight | ~8.5 kg (18.7 lbs) |
| OEM Reference | ZF 2093.311.027 |
| Hardness | 58-62 HRC (surface) |
Compatibility
This ring gear is specifically designed for ZF WG100, WG130, and WG131 transmissions. It is also compatible with the WG180 and WG200 series when used with the correct differential carrier. The 2093.311.027 interfaces directly with the 0750117075: TAPER ROLLER BEARING for proper axial support. For complete assembly, pair it with the 2093209094: DIFFERENTIAL and the 2093309078: DIFF.HOUSING to ensure correct gear mesh alignment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093109063 | DIFFERENTIAL | Distributes torque to axle shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports ring gear axial load |
| 2093209094 | DIFFERENTIAL | Houses side gears and spider gears |
| 2093309078 | DIFF.HOUSING | Encloses differential assembly |
| 0631100223 | SPRING PIN | Secures differential components |
| 0730300820 | THRUST WASHER | Reduces axial friction |
| 4482360002 | AXLE BEVEL GEAR | Transfers power to axle shafts |
| 2097309085 | DIFFERENTIAL AXLE | Connects differential to wheels |
| 5838300811 | THRUST WASHER | Controls gear end-play |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Meshes with ring gear |
Frequently Asked Questions
Q: How do I know if my ZF 2093.311.027 ring gear needs replacement?
A: Listen for a persistent whining noise during acceleration or deceleration. If you also notice metal particles in the differential oil, immediate replacement is required to avoid catastrophic failure.
Q: Can I install this ring gear without replacing the taper roller bearing?
A: It is strongly recommended to replace the 0750117075: TAPER ROLLER BEARING simultaneously, as worn bearings cause uneven gear wear and premature failure of the new ring gear.
Q: Is the 2093.311.027 compatible with aftermarket differentials?
A: This OEM genuine part is designed for ZF differentials. For aftermarket units, verify the bolt pattern and tooth count match your specific assembly.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
Request a Quote →
ZF 2093.311.027 RING GEAR – Gear RFQ Support
Use ZF 2093.311.027 RING GEAR as the reference when requesting gear support. Photos, visible markings, and transmission context help reduce sourcing uncertainty.
Part-Number Summary
Use ZF number 2093.311.027 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 | 2093.311.027 |
|---|---|
| Normalized SKU | 2093311027 |
| Part name | RING 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
