Overview
The ZF 2094.309.019 Crown Wheel is a critical hypoid gear component engineered for the final drive assembly of heavy-duty construction machinery transmissions. As an OEM genuine part, it transmits rotational torque from the differential side gears to the axle shafts, enabling smooth power delivery under extreme load conditions. This SKU 2094.309.019 is precision-machined from case-hardened alloy steel to withstand high stress and thermal cycling. It sits directly within the transmission housing, meshing with the pinion gear to achieve the necessary gear reduction for tracked and wheeled equipment. For optimal assembly integrity, this crown wheel is frequently installed alongside the 2094101017 TRANSMISSION HOUSING and the 2094301069 HOUSING, which provide the structural support and alignment required for long service life.
Symptoms of Failure
When the ZF 2094.309.019 crown wheel begins to wear, operators will notice distinct performance degradation. Whining or howling noise from the axle during acceleration is the most common early indicator, caused by improper tooth contact or pitting on the gear face. Vibration in the driveline under load often follows, as worn teeth create uneven rotational forces. Metal particles in the transmission oil are a definitive sign of advanced gear spalling, detectable during routine oil changes. Finally, intermittent loss of drive or gear slipping may occur when tooth breakage compromises the gear mesh. Addressing these symptoms promptly prevents secondary damage to the 2094298054 HOUSING and the 0636302008 SCREW PLUG, which can be contaminated by debris from a failing crown wheel.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 2094.309.019 |
| Type | Hypoid Crown Wheel (Ring Gear) |
| Outer Diameter | ~320 mm (estimated) |
| Number of Teeth | 41 (estimated) |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Weight | ~8.5 kg |
| OEM Reference | ZF 2094.309.019 |
| Surface Treatment | Shot-peened, phosphate coated |
Compatibility
This crown wheel is designed for use in ZF’s WG series powershift transmissions commonly deployed in construction machinery. It is a direct fit for the ZF WG180, WG200, and WG210 transmission models. It also applies to certain variants of the ZF WG120 and WG150 series used in wheel loaders and graders. Always verify the tooth count and mounting bolt pattern against your existing ring gear before installation. For complete driveline restoration, consider pairing this part with the 2094301071 COVER and the 2094301030 GASKET to seal the final drive housing effectively.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2094101017 | Transmission Housing | Main structural casing for gear train |
| 2094301069 | Housing | Secondary housing for final drive assembly |
| 2094298054 | Housing | Differential carrier housing component |
| 0636302008 | Screw Plug | Oil drain/fill port sealing plug |
| 0634801165 | Sealing Ring | Static seal between housing interfaces |
| 0635460022 | Ball | Check valve ball for lubrication circuit |
| 2094301071 | Cover | Access cover for final drive inspection |
| 2094301030 | Gasket | Compression seal for cover interface |
| 0750111371 | Shaft Seal | Rotary seal for output shaft |
| 0634303085 | O-Ring | Hydraulic seal for pressure lines |
