

The 779-107 Gear (5/8" Bore) is an OEM mechanical drive gear used in PowrDrive systems. It transfers rotational power between drive components, ensuring smooth, synchronized motion and reliable torque delivery during sprayer operation.
| Part Number | 779-107 |
|---|---|
| Product Type | Drive Gear |
| Bore Size | 5/8" |
| Condition | New OEM |
| Includes Components | Drive gear (single piece) |
| Fits | PowrDrive – Model 759-135 |
The 779-107 Gear is a factory-specified drive gear with a 5/8" bore, used in PowrDrive model 759-135 systems. It plays a critical role in transferring rotational force between drive components to maintain consistent mechanical timing and output.
Gears in high-load drive systems are subject to wear from continuous torque, vibration, and alignment stress. Using the correct OEM gear ensures proper mesh, reduced noise, and long-term drive reliability.
| Power transmission | Transfers rotational force between drive components |
|---|---|
| Torque control | Maintains proper mechanical load distribution |
| System timing | Ensures synchronized drive operation |
| Tooth wear | Rounded, chipped, or uneven gear teeth |
|---|---|
| Noise or vibration | Grinding or abnormal drive noise |
| Shaft play | Loose fit on 5/8" shaft bore |
| Drive overhaul | Replaced during major PowrDrive service |
Part 779-107 is compatible with the following PowrDrive configuration. Always confirm shaft size and parts diagram before ordering.
| System / Model | Component |
|---|---|
| PowrDrive – Model 759-135 | Drive Gear, 5/8" Bore (779-107) |
Inspect for matched wear patterns.
Verify shaft diameter and keyway condition.
Replace if excessive play is present.