FourStroke 20HP
Power. Performance. Convenience.
Nursia FourStroke outboard motors deliver superior torque for greater acceleration control.
Intuitive, innovative features
Discover what makes this engine stand apart
Exceptionally smooth and quiet
We balanced the powerhead to make it smoother. Then we crafted soft-rubber mounts that isolate vibration and direct it away. Whether you are listening for fish breaking or having a conversation, you will enjoy every minute on the water.
Advanced Nursia tiller
Port side or starboard, you pick the mounting location, and the tiller adapts to you. Its reversible throttle grip can be configured for control with either hand, while lateral and vertical adjustments ensure a convenient steering angle.
Easy to maintain
Spend less time on servicing and more time fishing with our no-spill oil-change system, easy-change gear lube, quick-connect flush system and lifetime maintenance-free valve train.
Power Tilt
No need to lean or strain to stow or deploy the engine. Nursia EFI-equipped ProKicker outboards come standard with Power Tilt.
Custom-matched prop
Big boats. Rough waters. No problem. A high-thrust four-blade propeller enhances trolling speed authority so you can dial in precise presentations every time.
Specifications
Complete technical specifications
| Model | FourStroke 20HP |
|---|---|
| Transom Height | 15/20in. |
| Dry Weight | 51.7-54.7Kg |
| Full Rpm Range | 5000~6000r/min |
| Max. Output Power | 14kW（20HP）@5000r/min |
| Idling Rpm Range | 1000~1100 r/min |
| Engine Type | 2-cyl. SOHC FourStroke |
| Displacement | 362 cc |
| Bore * Stroke | 63.0×58.1 mm |
| Ignition System | CDI |
| Fuel Induction System | Carburetor/EFI |
| Steering System | Tiller/Remote Control |
| Starting System | Electric start / Manual start |
| Gear Shift | F-N-R |
| Gear Ratio | 2.08 |
| Trim & Tilt System | Manual |
| Fuel Tank Capacity | 24L |
| Max. Fuel Consumption | 6.9L/h |
| Engine Oil Capacity | 1.6L |
| Gear Oil Capacity | 250cc |
| Propeller Options | 3-8" or 3-10" or 3-11" or 3-12" |
Warranty & Maintenance
World-class marine products backed by world-class warranties
Limited Warranty
World-class marine products backed by world-class warranties. We stand behind everything we build, and we go the extra mile to make sure your Nursia experience is the best it can be. Both on and off the water.
Review Coverage →Maintenance
With Nursia, you can spend more time on the fish and less time on maintenance. Oil and filter changes are simple enough to perform anywhere, from your garage to a remote fish camp, thanks to a no-spill oil-change design and a gearcase that can be drained from any tilt position.
Maintenance & How-To →Resources for you
Brochures, manuals, and additional resources
Fourstroke 20hp brochure
Fourstroke 20hp Maintain Manual
Nursia Marine Brand Brochure
Learn more about FourStroke 20HP at a Nursia dealer
No one understands marine performance like your local Mercury authorised dealer. Contact a dealer today to learn how you could power your adventures with this engine.