SOLAS 3551-145-21P Propeller 14.5

( Brand: Solas ), ( Manufacturer Part Number: 3551-145-21P ), ( Part Type: Propeller ), ( Propeller Rotation: Standard ), ( California Prop 65 Warning: Cancer And Reproductive Harm. )

Review SOLAS Yamaha Propeller 14.5 Inch 21p

The **Yamaha Solas 3551-145-21P** is a high-performance, three-blade fixed-pitch propeller designed for marine applications, offering an optimal balance of efficiency, durability, and versatility for a wide range of boats, from performance cruisers and sportfishing vessels to high-speed recreational and commercial craft. Engineered with Yamaha s signature precision and innovation, this propeller features a **14.5-inch diameter** blade span, paired with a **21-pitch** measurement, which ensures a tailored thrust-to-speed ratio for enhanced acceleration, fuel economy, and overall propulsion efficiency. The **three-blade design** strikes a balance between power delivery and smooth operation, reducing cavitation and vibration while maximizing thrust output, making it ideal for engines ranging from **150 to 300 horsepower** commonly found in Yamaha s F200, F250, and F300 series, as well as compatible with other marine manufacturers outboards of similar power ratings.

Crafted from **high-grade aluminum alloy**, the Solas 3551-145-21P is built to withstand the rigors of saltwater environments, corrosion, and heavy loads without compromising performance. The propeller s **fixed-pitch construction** provides a consistent, reliable drive, eliminating the need for frequent adjustments or maintenance associated with adjustable-pitch models. The **smooth, aerodynamic blade contours** are meticulously shaped to minimize drag and turbulence, ensuring optimal hydrodynamic efficiency even at high speeds. Additionally, the **reinforced blade tips** enhance durability, reducing the risk of damage from debris or rough water conditions, while the **balanced weight distribution** contributes to a quieter, more stable ride.

One of the standout features of the Solas series is its **universal compatibility**, making it a versatile choice for boat owners who seek reliability without sacrificing performance. The **21-pitch** designation suggests a moderate thrust-to-speed ratio, making it particularly well-suited for boats that require a blend of speed and towing capability, such as fishing boats, wakeboarders, or small cruisers. Whether accelerating quickly off the dock, maintaining cruising speed, or handling light towing duties, this propeller delivers consistent power delivery with minimal strain on the engine. For those who prioritize longevity and ease of maintenance, the Solas 3551-145-21P s robust construction and Yamaha s reputation for quality assurance ensure it remains a dependable workhorse for years to come.

Beyond its technical specifications, the Solas 3551-145-21P embodies Yamaha s commitment to innovation in marine propulsion. Its design integrates lessons learned from high-performance racing and commercial applications, translating into real-world benefits for recreational boaters. Whether you re navigating calm waters or tackling slightly choppy conditions, this propeller s efficiency translates to better fuel economy, reduced wear on the engine, and an overall smoother boating experience. For boat owners who demand both performance and reliability, the Yamaha Solas 3551-145-21P is a premium choice that delivers on all fronts.

### **Pros and Cons of buying a Yamaha Solas 3551-145-21P Propeller (14.5" x 21 Pitch)**

1. **High Efficiency for Cruising** The 21-pitch design is optimized for moderate to high-speed cruising, making it ideal for boats operating at sustained speeds (typically 15 25 knots). This reduces fuel consumption compared to a lower-pitch propeller.

2. **Durable Construction** Yamaha propellers are known for their high-quality stainless steel construction, which provides resistance to corrosion and wear, especially in saltwater environments. The 3551 series is designed for durability in recreational and light commercial applications.

3. **Balanced Performance** The 14.5-inch diameter strikes a good balance between acceleration and top-end speed. It s suitable for boats in the 20 30 ft range with moderate horsepower (e.g., 150 250 HP outboards), where it avoids excessive cavitation while maintaining efficiency.

4. **Compatibility with Yamaha Outboards** This propeller is engineered to work seamlessly with Yamaha s outboard motors, ensuring optimized performance and reduced risk of damage. Yamaha s tuning often aligns well with their own propellers.

5. **Reduced Noise and Vibration** A well-matched pitch and diameter can minimize vibration and noise, improving ride comfort and reducing stress on the engine and drivetrain.

6. **Versatility for Different Loads** The 21-pitch is adaptable to light to moderate loads, making it suitable for boats with occasional passengers or light towing (e.g., small watercraft or skiers).

7. **Easier Maintenance** Stainless steel propellers require less frequent polishing than bronze or aluminum alloys, reducing long-term maintenance costs.

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1. **Limited Acceleration Performance** A higher pitch (21) sacrifices quick acceleration compared to a lower-pitch propeller (e.g., 18 or 20). If the boat frequently operates at low speeds or requires rapid speed changes (e.g., for fishing or maneuvering in tight spaces), this propeller may feel sluggish.

2. **Potential for Cavitation at High Speeds** While designed for cruising, pushing the boat beyond its optimal speed range (e.g., in excess of 25 knots) can cause cavitation, reducing efficiency and potentially damaging the propeller or engine.

3. **Not Ideal for Heavy Loads or Towing** The 21-pitch is not optimized for heavy towing (e.g., wakeboarding, large trailers, or heavy fishing loads). In such cases, a lower pitch (e.g., 18 or 20) or a specialized towing propeller would be more efficient.

4. **Cost Relative to Alternatives** Yamaha propellers are premium-priced compared to generic or aftermarket options. If the boat is not high-performance or heavily used, the cost may not justify the investment.

5. **Potential for Wear Over Time** Even with stainless steel, propellers can suffer from pitting or erosion, especially in abrasive environments (e.g., shallow waters with sand or debris). Regular inspections are necessary.

6. **May Not Match All Engine Setups** If the boat s engine is heavily modified (e.g., turbocharged or with a custom gear ratio), the stock propeller may not be perfectly optimized. In such cases, a custom propeller could offer better performance.

7. **Limited Availability of Replacement Parts** While Yamaha propellers are durable, if damage occurs, finding exact replacements may be easier than with third-party brands, but not necessarily harder.

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The **Yamaha Solas 3551-145-21P** is an excellent choice for boat owners seeking a **reliable, high-efficiency propeller** for **moderate to high-speed cruising** in a Yamaha-equipped vessel. It excels in **fuel efficiency, durability, and smooth operation** under typical recreational conditions. However, it is **not ideal for heavy towing, rapid acceleration, or high-speed applications** where a lower pitch would be more suitable.

If your boat primarily operates at **steady speeds (15 25 knots)** with **moderate loads** (e.g., cruising, light fishing, or occasional passengers), this propeller will deliver strong performance with minimal maintenance. For boats requiring **faster acceleration, heavy towing, or extreme conditions**, a different pitch or propeller type would be more appropriate.

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- Your boat is **20 30 ft** with a **Yamaha outboard (150 250 HP)**.

- You prioritize **fuel efficiency and cruising comfort** over raw speed.

- You operate in **moderate conditions** (not extreme towing or high-speed racing).

- You want a **low-maintenance, durable propeller** with Yamaha s warranty support.

- You need **better acceleration** (opt for a **18-pitch or 20-pitch propeller**).

- You frequently **tow watercraft or heavy loads** (a **lower-pitch or towing-specific propeller** is better).

- Your engine is **heavily modified** (consult a marine mechanic for a **custom propeller**).

- You re on a **tight budget** (generic stainless steel propellers may suffice for basic use).

For most **standard Yamaha outboard boats** used for **leisure cruising**, this propeller is a **solid, well-engineered choice** that balances performance and longevity. Always verify compatibility with your specific engine model and operating conditions before purchasing.

Details:

Good used condition, only has one minor flaw at the tip of blades shown in photos. Was running fine, just took it off my boat because I re powered. Solas 3 blade Yamaha Propeller 14.5 and 21 PO.

part #: 355114521p prices

• $199.95-$425.00

specifications propboapar:

• for makes: Yamaha
• brand: Solas
• mpn: 3551-145-21p
• part type: Propeller
• propeller rotation: Standard
• california prop 65 warning: Cancer And Reproductive Harm.

general propboapar:

• Parts Accessories > Boat Parts > Propellers
• condition: Used

shipping propboapar:

• transit: 4-11 Days
• carrier: USPS
• cost: $15.28
• service: USPS Ground Advantage
• class: Standard
• type: Calculated

seller propboapar:

• rating: 100.0%
• city: Yorktown, Virginia
• # reviews: 109

returns propboapar:

• policy: No Returns

offer propboapar:

• quantity: 1
• availability: In Stock
• best offers: True
• started: March 30, 2026
• sold: 0
• options: Ship-to-home

payments propboapar:

• wallet: Paypal
• credit card: Visa
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