The T-19A Rotary Tiller Gearbox Ratio 1.84:1 Replacement for Comer T-19A Gearbox is an agricultural power transmission unit designed to transfer rotational power from a tractor’s power take-off (pto) shaft to the rotating blades of a rotary tiller, also known as a rotavator. Through an internal gear system, it adjusts rotational speed, increases output torque when operating through a reduction ratio, and directs power to the tiller’s rotor drive. Typically constructed with a cast iron housing, hardened steel gears, bearings, and oil seals, the gearbox is designed to withstand demanding soil cultivation conditions. It enables rotary tiller blades to break up compacted soil, mix crop residues, and prepare seedbeds. Rotary tiller gearboxes are available in different gear ratios, horsepower ratings, and shaft configurations to accommodate various tractor models and agricultural applications.

Technical Parameters
| Model | T-19A Gearbox 1.84:1 |
| Replace Brand | Comer |
| Product Details |
|
| Application Range |
|
| Ratio | 1.84:1 |
| Connection 1 Outside Diameter inch and splines | 1.3/8-6 |
| Connection 2 Outside Diameter inch and splines | 1.3/8-6 |
| Connection 3 Outside Diameter inch and splines | 1.3/8-6 |
| Max. input Power | 14.7 kW |
| Max. input Rotation Speed | 540 r/min |
| Max. output Power | 14.7 kW |
| Max. output power | 20 HP |
| Max. output Torque | 137 N·m |
| Gear Arrangement Increasing | 25-26 27-28 |
| Gear Arrangement Reducing | 5-6 |
| Contains Oil | No |
| Max. oil Capacity | 1 L |
| Max. Oil Change Interval | 500 h |
| Oil SAE Viscosity Grade | 80W-90 |
| Housing Material | Cast iron GG25 |
| Weight | 14 kg |
T-19A Rotary Tiller Gearbox Dimensions







