Tohatsu Nissan Mercury 4-6HP Outboard Propeller 7.8 x 7 3-Blade RH Aluminium Solas 5011-078-07
SOL5011-078-07
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Solas Amita 3 Propeller 5011-078-07
Aluminium 7.8" x 7" 3-Blade Right Hand Propeller
The Amita 3 7.8" × 7" is a 3-blade right-hand aluminium propeller for Tohatsu Nissan Mercury 4-6HP outboard engines (Spline drive gearcase), Solas part 5011-078-07. For this engine we list 3 pitches from 7" to 9". 7" is the lowest pitch in the range – maximum thrust for heavily loaded boats, pontoons, workboats or towing.
Key Features
- ✔ Pressed-in rubber hub – no hub kit needed
- ✔ Thru-hub exhaust for optimal flow
- ✔ 3-blade aluminium design
- ✔ Anti-corrosion paint finish
Technical Specs
| Diameter: | 7.8" |
| Pitch: | 7" |
| Blades: | 3 |
| Rotation: | Right Hand (RH) |
| Gearcase / Drive: | Spline drive |
| Material: | Aluminium |
| Solas Part No.: | 5011-078-07 |
Is 7" the Right Pitch for Your Boat?
A 7" pitch means this propeller would, in theory, move the boat 7" forward for every full turn. The right pitch lets your Tohatsu Nissan Mercury 4-6HP outboard reach the full-throttle RPM range given in its owner's manual with a normal load on board.
- ✔ Engine over-revs at full throttle? Go up in pitch – the next size up for this engine is 8".
- ✔ Engine can't reach its rated RPM, or the boat is slow to plane? Go down in pitch.
- ✔ Rule of thumb: a change of 1" in pitch moves full-throttle engine speed by roughly 150–200 RPM.
Other pitches for your Tohatsu Nissan Mercury 4-6HP outboard:
- 7" pitch (8.5" diameter) – same pitch on a slightly different diameter.
- 8" pitch (7.8" diameter) – a mid-range pitch – balanced all-round performance and the usual starting point; roughly 150–200 RPM less at full throttle than 7".
- 8" pitch (8.5" diameter) – a mid-range pitch – balanced all-round performance and the usual starting point; roughly 150–200 RPM less at full throttle than 7".
- 9" pitch (7.8" diameter) – the highest pitch in the range – maximum top speed for light, fast hulls running lightly loaded; roughly 300–400 RPM less at full throttle than 7".
- 9" pitch (8.5" diameter) – the highest pitch in the range – maximum top speed for light, fast hulls running lightly loaded; roughly 300–400 RPM less at full throttle than 7".
Compatibility / Fitment Guide
| Make/System | Model/Application | Notes |
|---|---|---|
| Tohatsu | 4-6 HP – Spline drive | Match your current propeller size |
| Nissan | 4-6 HP – Spline drive | Match your current propeller size |
| Mercury | 4-6 HP – Spline drive | Match your current propeller size |
OEM Cross Reference
| Solas | 5011-078-07 |
Questions & Answers
Will this propeller fit my Tohatsu Nissan Mercury 4-6HP outboard?
It fits Tohatsu Nissan Mercury 4-6HP outboard engines with a Spline drive gearcase. Check the fitment table above and compare the size stamped on your current propeller (7.8" × 7") before ordering.
Should I choose 7" or a different pitch?
Keep the same pitch as your current propeller if the engine reaches its rated full-throttle RPM. If it over-revs, 8" is the next step up.
Is this a genuine original part?
This is a genuine Solas propeller – a premium aftermarket replacement made to meet or exceed original equipment (OE) fitment and performance.
How do I know if it is compatible?
Check the Solas part number (5011-078-07) or OEM number on your current propeller, plus your gearcase size and spline count. If you are unsure, send us your engine make, model and year and we will confirm fitment before you order.
Does this propeller require a separate hub kit?
No. This propeller has a traditional pressed-in rubber hub and fits straight onto your propeller shaft with your existing thrust washer and nut.
Note: Please verify your engine's gearcase size, spline count and propeller size against the references above before purchasing. Domain: 4boats.co.uk
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