Overview
The ZF 2093.311.018 GEAR RING is a critical component engineered for the WG100, WG130, and WG131 transmission series. This OEM genuine part functions as the primary torque-transfer interface within the planetary gear set, meshing directly with the sun gear and planet carriers to manage high-load rotational forces. The SKU 2093.311.018 is precision-machined to maintain exact tooth geometry, ensuring smooth power delivery and minimal backlash during operation. When installed alongside the 2093109032: DIFFERENTIAL, this gear ring forms the core of the final drive assembly, converting engine torque into usable wheel rotation.
Symptoms of Failure
- Whining or grinding noise during acceleration — Worn teeth on the 2093.311.018 gear ring produce a distinct metallic whine that intensifies under load, often mistaken for bearing failure.
- Intermittent gear slipping under heavy torque — As the ring gear loses tooth profile integrity, the transmission may momentarily lose power transfer, causing RPM surges without corresponding speed increase.
- Metallic debris in transmission fluid — Flaking or chipped gear ring material contaminates the oil, visible as silver or bronze particles during fluid changes, often requiring replacement of the 0750117075: TAPER ROLLER BEARING simultaneously.
- Vibration through the driveline during coasting — Uneven wear on the gear ring creates harmonic vibrations felt in the chassis, particularly when decelerating from highway speeds.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2093.311.018 |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Outer Diameter | 198.5 mm |
| Inner Diameter | 142.0 mm |
| Tooth Count | 72 |
| Module | 2.75 |
| Weight | 3.85 kg |
| OEM Reference | ZF 2093.311.018 |
| Hardness | 58-62 HRC |
Compatibility
This gear ring is specifically designed for ZF WG100, WG130, and WG131 transmissions, commonly found in medium-duty trucks, agricultural tractors, and construction loaders. It also fits select WG180 and WG200 variants produced between 1998-2012, though cross-referencing with the 2093209094: DIFFERENTIAL assembly is recommended for WG200 applications. The part integrates directly with the 2093309078: DIFF.HOUSING to ensure concentric alignment of the planetary gear set.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093109032 | DIFFERENTIAL | Distributes torque between drive wheels |
| 0750117075 | TAPER ROLLER BEARING | Supports axial and radial loads on gear shafts |
| 2093209094 | DIFFERENTIAL | Secondary torque distribution unit for WG200 |
| 2093309078 | DIFF.HOUSING | Encloses differential gears and ring gear assembly |
| 0631100223 | SPRING PIN | Secures gear ring alignment during assembly |
| 0730300820 | THRUST WASHER | Reduces axial friction between rotating gears |
| 4482360002 | AXLE BEVEL GEAR | Transfers power from differential to axle shafts |
| 2097309085 | DIFFERENTIAL AXLE | Connects differential to wheel hubs |
| 5838300811 | THRUST WASHER | Controls end-play in planetary gear sets |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Primary gear inside differential housing |
Frequently Asked Questions
Q: Can the 2093.311.018 gear ring be replaced without removing the entire transmission?
A: Yes, but only if the differential housing is accessible. You must remove the 2093309078: DIFF.HOUSING and the 2093109032: DIFFERENTIAL to access the gear ring. In most WG100/WG130 applications, this is a bench-level repair requiring transmission removal.
Q: What is the expected service life of this gear ring under normal operating conditions?
A: With proper lubrication and no contamination, the OEM gear ring typically lasts 8,000-12,000 operating hours. Premature failure often occurs when the 0750117075: TAPER ROLLER BEARING wears, introducing play that damages the ring gear teeth.
Q: Does this part require any special tools for installation?
A: A hydraulic press is needed to seat the gear ring onto the differential carrier, and a torque wrench calibrated to 280 Nm is required for the retaining bolts. Always replace the 0631100223: SPRING PIN during reassembly to prevent rotation.
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ZF 2093.311.018 GEAR RING – Gear RFQ Support
ZF 2093.311.018 GEAR RING 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 2093.311.018 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Illustration section: 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 | 2093.311.018 |
|---|---|
| Normalized SKU | 2093311018 |
| Part name | GEAR RING |
| 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.
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