Listed gear-ratio data for 2013 Evinrude 150 HP outboards. Match your exact model and lower unit; some models may have more than one gearcase configuration.
2013 Evinrude 150 HP
Listed ratio values: 1.86:1, 2.17:1
| Model | Gear ratio |
|---|---|
| 150 E-TEC | 1.86:1 |
| 150 E-TEC H.O. | 1.86:1, 2.17:1 |
Use the ratio that matches your exact outboard model and lower unit, then enter it in the PropSlip calculator.