Overview
This OEM genuine ZF 2093.304.020 DOUBLE GEAR is a critical power-transfer component engineered for the WG100, WG130, and WG131 transmission series. Positioned within the countershaft assembly, this double gear manages torque distribution between the input shaft and the differential unit, ensuring smooth engagement under heavy loads. The part number 2093.304.020 is precision-machined to ZF’s exacting tolerances, reducing backlash and vibration in high-cycle industrial applications. When installed alongside a 5838109012: DIFFERENTIAL, it maintains consistent gear mesh alignment, which is essential for extending service life in material handling and construction equipment.
Symptoms of Failure
- Whining or grinding noise during acceleration: Worn gear teeth on the 2093.304.020 create audible metal-on-metal contact, often mistaken for bearing failure. This symptom worsens under load and indicates imminent tooth fracture.
- Intermittent gear slipping under torque: As the double gear loses its hardened surface layer, it fails to maintain positive engagement, causing the transmission to momentarily lose drive power—especially when climbing grades or reversing.
- Metallic debris in transmission fluid: Flaking or pitting on the gear flanks deposits fine steel particles into the oil, which can accelerate wear on the 0750117075: TAPER ROLLER BEARING and adjacent shafts.
- Vibration at specific RPM ranges: Uneven tooth wear creates harmonic imbalance, felt as a low-frequency shudder through the chassis, often misdiagnosed as a driveshaft issue.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number / SKU | 2093.304.020 |
| Gear Type | Double Helical (Constant Mesh) |
| Outer Diameter | 142 mm (estimated) |
| Face Width | 38 mm |
| Material | Case-Hardened Alloy Steel (20MnCr5) |
| Weight | 2.85 kg (6.28 lbs) |
| OEM Reference | ZF 2093.304.020 |
| Heat Treatment | Carburized & Tempered to 58-62 HRC |
Compatibility
This double gear is specifically designed for the ZF WG100, WG130, and WG131 powershift transmissions. It also fits select variants of the WG180 and WG200 series when used with the correct 2093209023: DIFFERENTIAL assembly. For proper installation, ensure the 5838300626: DIFFERENTIAL HOUSING is free of cracks and the bearing bores are within spec. Always replace the mating thrust washers and spring pins when servicing this gear to prevent premature failure.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838109012 | DIFFERENTIAL | Distributes torque to axle shafts; mates directly with double gear |
| 0750117075 | TAPER ROLLER BEARING | Supports gear shaft radial and axial loads |
| 2093209023 | DIFFERENTIAL | Alternative differential assembly for WG130/WG131 |
| 5838300626 | DIFFERENTIAL HOUSING | Encloses differential gears; aligns double gear mesh |
| 0631329088 | SPRING PIN | Secures gear to shaft; prevents axial movement |
| 5838300811 | THRUST WASHER | Controls gear end-play; reduces friction |
| 5838300721 | AXLE BEVEL GEAR | Transfers power from differential to axle |
| 5838300633 | AXLE | Drives wheel hubs; splined to bevel gear |
| 5838300753 | THRUST WASHER | Thicker variant for differential side clearance |
| 5838300818 | THRUST WASHER | Thin shim for fine-tune gear lash adjustment |
Frequently Asked Questions
Q: Can the ZF 2093.304.020 double gear be used in a WG180 transmission?
A: Yes, it is compatible with WG180 series when paired with the correct differential housing (5838300626) and taper roller bearing (0750117075). Verify your transmission’s serial number before ordering.
Q: What causes premature wear on this double gear?
A: The most common cause is contaminated lubricant or incorrect backlash settings. Always replace the thrust washers (5838300811, 5838300753, or 5838300818) and spring pin (0631329088) during gear replacement to maintain proper mesh depth.
Q: Is the 2093.304.020 sold as a matched set with the differential?
A: No, it is sold individually. For optimal performance, we recommend ordering the 2093209023: DIFFERENTIAL and 5838300721: AXLE BEVEL GEAR simultaneously to ensure matched wear patterns.
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Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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ZF 2093.304.020 DOUBLE GEAR – Gear RFQ Support
ZF 2093.304.020 DOUBLE 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 2093.304.020 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Illustration section: MAIN SHAFT
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 | 2093.304.020 |
|---|---|
| Normalized SKU | 2093304020 |
| Part name | DOUBLE 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.
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- ZF 4143.142.022 GEAR SHIFT SENSOR
