Listed gear-ratio data for 2003 Mariner 5 HP outboards. Match your exact model and lower unit; some models may have more than one gearcase configuration.
2003 Mariner 5 HP
Listed ratio values: 2.15:1
| Model | Gear ratio |
|---|---|
| 5 TwoStroke | 2.15:1 |
| F5 FourStroke | 2.15:1 |
Use the ratio that matches your exact outboard model and lower unit, then enter it in the PropSlip calculator.