Solas Amita 4 Aluminum 4-Blade Propeller 10.8x12 for Mercury/Mariner 25-70 HP

The Solas Amita 4 10.8x12 delivers outstanding performance for a wide range of Mercury and Mariner outboards from 25 to 70 HP. With its four blades, this propeller offers more blade surface area biting into the water, which translates into stronger thrust at low and mid engine speeds. The 12″ pitch allows the motor to achieve a good top-end velocity, while the 10.8″ diameter and blade design ensure a powerful “grab” on the water during acceleration.

One of the key advantages of the Amita 4 10.8x12 is its ability to improve fuel economy. By propelling the boat more efficiently (less slip, more forward push), the engine doesn’t have to work as hard – especially at cruising speeds, where the four-blade design keeps the boat on plane at lower RPM. This makes the prop a great choice for long cruises or fishing outings where every drop of fuel counts.

Ideal for Towing & Heavy Loads: If you frequently use your boat for water sports (skiing, wakeboarding, tubing) or if you run with heavier loads (more passengers, gear, equipment), the Solas Amita 4 10.8x12 will give you peace of mind. The boat will pop out of the water faster and stay steady at the needed speed for towing, without over-revving the engine. The stern lift that this prop provides helps the boat remain on plane even at slightly lower speeds – something 3-blade props can struggle with, especially when weight increases.

Stability & Handling: Thanks to the four blades, the boat holds course better and responds smoothly to steering inputs. This is especially noticeable at higher speeds or in choppy conditions, where the extra stability is very welcome. Maneuvering when coming to dock or onto a trailer is also easier, as the prop “pulls” water more consistently and predictably.

Compatibility: The Solas Amita 4 10.8x12 is compatible with most Mercury/Mariner 2-stroke and 4-stroke engines between 25 and 70 HP that use the standard 3-1/4″ gearcase with a 13-spline prop shaft. This includes popular models like the Mercury/Mariner 40-60 HP range (including BigFoot/Command Thrust variants), some older Mercury 25-30 HP 2-strokes, as well as Force (Chrysler) outboards in this bracket. Installation is straightforward – simply use your engine’s existing hardware kit (thrust washer, nut, cotter pin) to install the prop.