Amita 3 – Tohatsu/Nissan (13 x 21″) Solas RH Propeller, 3411-130-21
Introduction
The Amita 3 – Tohatsu/Nissan (13 x 21″) Solas RH Propeller, 3411-130-21 is an engineered aluminum propeller designed to optimize the performance of compatible Tohatsu and Nissan outboard engines. This top-tier propeller from the Solas Amita 3 lineup brings together exceptional thrust, durability, and smooth handling for boating, fishing, and cruising. The Amita 3 Tohatsu marine propeller ensures excellent hole-shot, efficient cruising speeds, and reliable performance in a wide range of water conditions.
In this full-length guide, we explore everything you need to know about the Amita 3 – from technical specifications and installation to maintenance tips, troubleshooting, and expert recommendations. We’ll help you understand why this model stands out among the best propeller options for Tohatsu/Nissan engines.
Overview / What Is Amita 3 – Tohatsu/Nissan (13 x 21″) Solas RH Propeller?
The Amita 3 – Tohatsu/Nissan (13 x 21″) Solas RH Propeller is crafted from marine-grade aluminum with a right-hand rotation designed specifically for Tohatsu and Nissan outboards. Solas engineered the Amita 3 series for anglers, recreational boaters, and light commercial operations looking for cost-effective, performance-focused propulsion.
This model—3411-130-21—features a 13-inch diameter with a 21-inch pitch. The higher pitch leans toward efficient cruising and fuel economy while providing substantial thrust for heavier loads or trimmed-up operation. Built-in hub cushioning reduces vibration and absorbs shock, protecting your engine and driveline.
Important features include:
- 13″ diameter and 21″ pitch for optimized cruising thrust and RPM match.
- Aluminum construction for affordability and corrosion resistance in diverse water conditions.
- 3-blade design to balance acceleration and top speed.
- Rubberized hub to dampen vibration and protect from sudden impact.
If you’re evaluating best Amita 3 options for your Tohatsu/Nissan engine, this propeller combines fuel efficiency, performance balance, and long-term durability.
Technical Performance & Ideal Use Cases
The Amita 3 Tohatsu marine propeller, with its 13 × 21 size, delivers excellent performance when you’re cruising at mid-to-high RPM ranges. It’s particularly effective for moderate displacement boats, tenders, and pontoons using Tohatsu or Nissan motors rated around 50–90 HP where maintaining RPM limits is important.
Because of the higher pitch, hole‑shot acceleration is still strong when trimmed correctly. Yet the emphasis is on comfortable cruising speed, reduced fuel consumption, and maintaining your engine’s optimal RPM band without excessive revving.
Use cases include:
- Boaters who value efficiency over maximum top speed.
- Owners of medium displacement vessels.
- Operators prioritizing RPM stability under load.
- Navigators in freshwater or saltwater environments needing robust aluminum durability.
How to Install the Amita 3 Propeller
Here’s a step-by-step guide on how to install your Amita 3 – Tohatsu/Nissan (13 × 21″) Solas RH Propeller:
- Ensure the engine is off and in neutral gear.
- Remove the cotter pin and propeller nut using appropriate pliers or wrench.
- Slide off the old propeller, keeping washers or spacers organized.
- Apply marine grease to the prop shaft splines.
- Carefully install the new Amita 3 – Tohatsu/Nissan 13 × 21 propeller securely and evenly.
- Reinstall the propeller nut, torque to manufacturer specs, and secure with a new cotter pin.
After installation, conduct a slow idle run in the water to confirm rotation and absence of wobble. Adjust trim if needed, then test wide open throttle and monitor RPM to ensure proper match with engine rating.
Maintenance Tips
Proper maintenance of your Amita 3 Tohatsu marine propeller ensures reliability and long service life. Follow these routine tips:
- Freshwater rinse: After every trip, rinse thoroughly to remove salt, sand, and debris.
- Visual inspection: Check for bends, nicks, corrosion, or fishing line wrap around the shaft.
- Shaft lubrication: Remove prop and apply fresh marine grease periodically.
- Hub checking: Replace hub or spline insert if excessive play or slippage occurs.
- Storage care: Store in a dry, ventilated location; avoid placing weight on blades.
By following these Amita 3 Tohatsu marine maintenance tips, you avoid unexpected performance loss and extend the working life of your propeller and driveline components.
Cleanup from Scrapes and Dings
Encounters with submerged objects can cause minor chip or ding damage. While aluminum is forgiving, it’s smart to address imperfections quickly.
Use fine waterproof sandpaper to smooth out shallow dents. For deeper blade damage, consult a prop repair specialist. Never ignore a bent blade, as it can cause imbalance or cavitation, affecting thrust and fuel economy.
Expert Advice and Pro Recommendations
Marine professionals consistently recommend the Amita 3 – Tohatsu/Nissan (13 x 21″) Solas RH Propeller for boater-friendly performance paired with cost-effectiveness. It works well for weekend boaters, anglers, and light commercial users looking for proven design and compatibility.
Pro Tip: Keep a backup stainless steel propeller on board for extended trips or rugged conditions. Aluminum is resilient but can bend—steel offers added security.
If you’re considering upgrade routes, confirm your engine’s maximum RPM range. Installing an overly low-pitch prop can over-rev the engine, while too-high pitch might starve thrust. The 13 × 21 choice typically lands within the sweet spot for balanced RPM and speed.
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Troubleshooting Common Issues
Even a well-made propeller like the Amita 3 Tohatsu marine model can develop issues under use. Common problems include excessive vibration, poor acceleration, or RPM mismatch:
- Vibration: Check for bent blades or debris lodged in hub or shaft. Blade imbalance may require replacement.
- Poor acceleration or top speed: Could indicate wrong pitch selection. Compare actual RPM under load to engine spec. If off, consider adjusting pitch up or down.
- Engine overheat or cavitation: May result from blade damage or improper mounting height. Reseat or reinstall prop at correct height.
Adjusting trim height, verifying shaft alignment, and inspecting hub condition usually resolve these issues. If symptoms persist, professional diagnostics may reveal engine or gearbox misalignment.
Cost and Durability Comparison
Compared with stainless steel options, the Amita 3 – Tohatsu/Nissan propeller offers substantially lower cost while maintaining respectable lifespan. Aluminum models tend to withstand minor strikes by bending instead of cracking. If contact with underwater hazards is frequent, you may bend rather than shatter—a smoother repair experience.
Typical aluminum service life ranges from 3–7 years depending on frequency of use and maintenance diligence. The Solas name ensures consistent casting quality and resistance to corrosion, making this model a dependable investment for seasonal boaters.
Detailed FAQ Section
1. What engines are compatible with the Amita 3 – Tohatsu/Nissan (13 x 21″) Solas RH Propeller?
The Amita 3 – Tohatsu 13 x 21 propeller is compatible with a range of Tohatsu and Nissan outboard motors, particularly in the 50–90 HP category. The hub spline and thrust washer configuration matches standard spline counts on these engines, but verifying the exact fit with your serial number or engine manual is recommended. While many engine models share the same mount, earlier or very new model years can vary slightly—so contacting your engine dealer or using Solas fitment charts is wise.
When evaluating best Amita 3 options for your motor, also consider gear ratio and maximum RPM spec: if your engine redlines at 5500 RPM, the 21-inch pitch should usually bring you close to that in wide open throttle, ensuring efficient cruising and top-end power with correct trim.
2. How to install the Amita 3 propeller safely?
Installing a marine propeller requires close attention to detail and correct procedure. First, ensure your engine is off, gearbox in neutral, and prop shaft dry and clean. Remove the cotter pin and retaining nut from the old prop, keeping track of washers or spacers. Gently slide off the old propeller without force. Then apply marine-grade grease to the splines of the shaft before sliding on the new Solas Amita 3—this ensures smooth fit and prevents seizure.
When reinstalling, torque the prop nut to the value specified by Solas or your engine manual, typically around 60–80 ft-lb depending on engine size. Insert a new cotter pin and bend the ends for security. After installation, test at slow RPM in water, then observe engine gauge readings at WOT (wide open throttle). Confirm that RPM falls within acceptable operating range. If you see RPM off by more than 300 revs, reevaluate pitch choice or installation.
3. What about durability and lifespan of aluminum propellers like this?
Aluminum propellers such as the Amita 3 Tohatsu marine are designed to provide durable and cost-efficient propulsion. They resist salt corrosion due to alloy coatings or anodization and are easier to repair than stainless steel. Common impacts or minor grounding often result in blade bending rather than catastrophic failure. A skilled prop repair facility can often correct moderate damage.
With regular inspection and freshwater rinsing, this propeller can last 3–7 years under normal recreational use. If used in sandy or rocky waterways frequently, lifespan might decrease. Proper hub inspection—ensuring rubber inserts remain intact—also affects longevity because hub slip will degrade efficiency or allow blade movement.
4. How to troubleshoot performance issues with the Amita 3 propeller?
If your boat feels sluggish, vibrates excessively, or the engine overheats, start by inspecting the propeller. Bent blades, impact damage, or hub wear can cause imbalance and cavitation. Remove the prop and spin it manually to feel for wobble. Check for fishing line or debris trapped on the shaft. If RPM at WOT is too high or low compared to engine spec, the pitch may not match your boat’s weight or usage pattern. In such cases, selecting a different size—perhaps 13 × 19 or 13 × 23—could optimize performance.
Also confirm gear case height above the bottom of the hull: too high or low mount height can cause surface ventilation or drag. Trim settings on tiltable engines also impact cavitation risk. Correcting mount height, trim angle, or replacing blade vs pitch size adjustments typically resolves most issues.
5. What are the costs and benefits compared to stainless steel alternatives?
The Amita 3 – Tohatsu 13 x 21 propeller costs significantly less than stainless steel equivalents while still delivering dependable performance. Stainless steel props are stronger and more efficient at higher speeds, but they are brittle when impacted and cost several times more for the same size. Aluminum bends on impact—which can be favorable for minor strikes since repair and realignment are easier.
For seasonal boaters, fishing in shallower waters, or those who prioritize budget and ease of replacement, the Amita 3 aluminum model offers balanced value. If maximum speed or rigid durability is needed—such as offshore or charter use—stainless steel is worth considering. But for most recreational use cases with Tohatsu/Nissan engines, the 13 x 21 Amita 3 offers excellent reliability, fuel economy, and maintenance ease.
Conclusion
The Amita 3 – Tohatsu/Nissan (13 x 21″) Solas RH Propeller is a smart choice for boaters using compatible outboard engines who want efficient cruising performance and fuel economy. With its balanced pitch, solid aluminum build, and proven Solas engineering, it’s one of the best prop options in its class.
Whether you prioritize smooth acceleration, reduced vibration, or long-term durability, this model offers reliable value and ease of maintenance. Ideal for recreational boating in varied water conditions, the Amita 3 delivers performance where it counts.
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For more helpful marine maintenance guides, check out our article on Amita 3 – Suzuki (14 x 9″) Solas RH Propeller, 3411-140-09.