Solas Rubex Propeller 12.1 x 9 3-Blade RH Aluminium 30-70HP Mercury Yamaha Suzuki 9311-121-09
SOL9311-121-09
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Solas Rubex 3 Propeller 9311-121-09
Aluminium 12.1" x 9" 3-Blade Right Hand Propeller
The Rubex 3 12.1" × 9" is a 3-blade right-hand aluminium propeller for Solas Rubex engines (3 1/4" gearcase, set by rubex hub kit), Solas part 9311-121-09. For this engine we list 5 pitches from 9" to 13". 9" is the lowest pitch in the range – maximum thrust for heavily loaded boats, pontoons, workboats or towing.
Key Features
- ✔ Rubex interchangeable hub system – one propeller, many engines
- ✔ Hub kit absorbs impact and protects the gearcase
- ✔ Thru-hub exhaust for optimal flow
- ✔ 3-blade aluminium design
Technical Specs
| Diameter: | 12.1" |
| Pitch: | 9" |
| Blades: | 3 |
| Rotation: | Right Hand (RH) |
| Gearcase / Drive: | 3 1/4" |
| Spline Count: | Set by Rubex hub kit |
| Material: | Aluminium |
| Solas Part No.: | 9311-121-09 |
Is 9" the Right Pitch for Your Boat?
A 9" pitch means this propeller would, in theory, move the boat 9" forward for every full turn. The right pitch lets your Solas Rubex 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 10".
- ✔ 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 Solas Rubex:
- 10" pitch (12" diameter) – a low pitch – stronger acceleration and pulling power for heavier loads, towing and water-sports; roughly 150–200 RPM less at full throttle than 9".
- 11" pitch (11.6" diameter) – a mid-range pitch – balanced all-round performance and the usual starting point; roughly 300–400 RPM less at full throttle than 9".
- 12" pitch (11.4" diameter) – a high pitch – more top speed and lower cruising revs for lighter, faster hulls.
- 13" pitch (11.1" diameter) – the highest pitch in the range – maximum top speed for light, fast hulls running lightly loaded.
Compatibility / Fitment Guide
| Make/System | Model/Application | Notes |
|---|---|---|
| Mercury | 30-70 HP – 3 1/4" gearcase | Requires matching Rubex hub kit |
| Yamaha | 30-70 HP – 3 1/4" gearcase | Requires matching Rubex hub kit |
| Suzuki | 30-70 HP – 3 1/4" gearcase | Requires matching Rubex hub kit |
| Honda | 30-70 HP – 3 1/4" gearcase | Requires matching Rubex hub kit |
| Tohatsu | 30-70 HP – 3 1/4" gearcase | Requires matching Rubex hub kit |
| Johnson | 30-70 HP – 3 1/4" gearcase | Requires matching Rubex hub kit |
| Evinrude | 30-70 HP – 3 1/4" gearcase | Requires matching Rubex hub kit |
Required Hub Kits & Cross Reference
| Solas | 9311-121-09 |
| Rubex hub kits (sold separately) | RBX-111 Evinrude/Johnson 40-70HP; RBX-112 Nissan/Tohatsu 50-70HP; RBX-113 Honda 35-50HP; RBX-114 Mercury 30-70HP; RBX-115 Suzuki 30-70HP; RBX-116 Nissan/Tohatsu 35-50HP; RBX-117 Yamaha 40-60HP |
Questions & Answers
Will this propeller fit my Solas Rubex?
It fits Solas Rubex engines with a 3 1/4" gearcase, set by rubex hub kit. Check the fitment table above and compare the size stamped on your current propeller (12.1" × 9") before ordering.
Should I choose 9" 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, 10" 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 (9311-121-09) 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?
Yes. Rubex propellers use an interchangeable hub. The correct Solas Rubex hub kit for your engine is required and is not included.
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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