STILETTO 21317-1317 Steel Boat Propeller Blade Prop O1317

( Brand: Stiletto ), ( Manufacturer Part Number: 21317-1317 ), ( Part Type: Propeller Blade Prop ), ( Propeller Rotation: Standard )

Review STILETTO 1317 Stainless Steel Boat Propeller Blade Prop

The **Stiletto 21317 1317 Steel Boat Propeller (O1317 Blade Prop)** is a high-performance marine propeller engineered for precision, durability, and maximum efficiency, making it an ideal choice for both recreational and performance-oriented vessels. Crafted from **high-grade 317 marine-grade stainless steel**, this propeller is designed to withstand the harshest conditions, including saltwater corrosion, abrasive debris, and prolonged exposure to the elements, ensuring long-term reliability without the need for frequent replacements. The **O1317 blade configuration** features a **three-blade design** with a **unique hydrodynamic profile**, optimized to reduce cavitation, minimize vibration, and enhance thrust efficiency across a wide range of RPMs. This blade shape is meticulously contoured to improve wake flow, reducing drag while maximizing propulsion, which translates to better fuel economy and smoother operation especially beneficial for speedboats, yachts, and high-performance outboards. The **21317 pitch** is carefully calibrated to balance acceleration and top-end speed, making it versatile for both cruising and high-speed applications, whether you're navigating calm waters or tackling choppy conditions. The **stepped blade design** further enhances durability by distributing stress more evenly, reducing the risk of pitting or blade failure under heavy loads. Whether installed on a **V-drive, inboard-outboard, or sterndrive system**, this propeller delivers exceptional performance with minimal maintenance, making it a premium investment for boat owners who demand both power and longevity. Its **smooth, polished finish** not only improves aesthetics but also contributes to reduced friction and improved hydrodynamic efficiency, ensuring consistent top-tier performance season after season.

### **Pros and Cons of buying a Stiletto 21317 (O1317 Blade Prop) in 13x17 Steel**

1. **Durability and Strength** Made from **13x17 stainless steel**, this propeller is highly resistant to corrosion, saltwater, and mechanical wear, making it ideal for frequent or heavy use in marine environments.

2. **High Performance** The **O1317 blade design** is optimized for efficiency, providing strong thrust and smooth operation, which can improve fuel economy and speed compared to older or lower-quality props.

3. **Compatibility with Stiletto Boats** Specifically engineered for **Stiletto models**, ensuring proper fit, balance, and performance without requiring excessive modifications.

4. **Long Lifespan** Properly maintained stainless steel props can last **decades**, reducing long-term replacement costs compared to aluminum or bronze alternatives.

5. **Resistance to Cavitation** The design helps minimize pitting and erosion from cavitation, which is common in high-performance or deep-V hulls.

6. **Easier Maintenance** Unlike bronze or aluminum, stainless steel does not require frequent polishing or protective coatings, though it does need occasional cleaning to prevent fouling.

7. **Better Thrust Efficiency** The **13x17 steel** blend offers a good balance between strength and weight, allowing for better power transfer from the engine to the water.

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1. **Higher Initial Cost** Stainless steel props are generally **more expensive** upfront than aluminum or bronze alternatives, which may be a barrier for budget-conscious buyers.

2. **Potential for Rust if Not Properly Maintained** While 13x17 steel is corrosion-resistant, improper storage (e.g., leaving it in saltwater without rinsing) or lack of regular cleaning can lead to surface rust over time.

3. **Heavier Than Some Alternatives** Steel props are **lighter than bronze but heavier than aluminum**, which may slightly affect handling in very small or lightweight boats, though the difference is usually negligible in most cases.

4. **Limited Availability of Replacement Parts** If the propeller requires repairs (e.g., blade damage), finding exact replacements may be harder than with more common materials like aluminum.

5. **Potential for Noise at High Speeds** Some stainless steel props can produce **more noise** at high RPMs compared to bronze, though this varies by design and engine setup.

6. **Not Ideal for Extreme Abrasive Conditions** While resistant to corrosion, **13x17 steel is not as abrasion-resistant as some bronze alloys**, meaning it may wear faster in environments with heavy sediment or debris.

7. **Requires Professional Installation** Due to its precision engineering, **improper installation can lead to imbalance or reduced performance**, making professional fitting advisable.

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The **Stiletto 21317 (O1317 blade, 13x17 steel) propeller** is a **high-quality, long-lasting choice** for owners of Stiletto boats who prioritize **durability, performance, and corrosion resistance**. While it comes at a **higher upfront cost**, its **longevity, efficiency, and low maintenance requirements** make it a **strong investment** for serious boaters, especially those who use their vessels frequently in **saltwater or demanding conditions**.

If **budget is a concern** or if the boat sees **minimal use**, a **bronze or aluminum prop** might be a more cost-effective alternative. However, for **performance-oriented Stiletto owners** who want a **premium, low-maintenance propeller**, this is an **excellent choice**.

- You own a **Stiletto boat** and want a **factory-matched, high-performance prop**.

- You operate in **saltwater or harsh marine conditions** where corrosion resistance is critical.

- You prioritize **long-term durability and efficiency** over initial cost.

- You are willing to **invest in professional installation and occasional maintenance** (cleaning, inspection).

- You are on a **tight budget** and expect minimal usage.

- Your boat operates primarily in **freshwater** with low debris.

- You prefer **lighter props** for easier handling (though the difference is usually minor).

**Final Verdict:** For most **Stiletto owners** who want a **reliable, high-performance propeller**, this is a **strong recommendation**. The trade-offs in cost and weight are outweighed by its **longevity and efficiency** in the right conditions.

Details:

Propeller blades are very clean overall with no major dents or damage visible. Stiletto Performance Propellers stainless steel 3-blade boat propeller. Hub area shows some grease/residue and minor signs of installation/ storage. Please review all photos carefully.

I am unsure whether it was fully used or only installed/test fitted.

part #: 213171317 prices

• $90.00-$217.00

specifications propboapar:

• brand: Stiletto
• mpn: 21317-1317
• part type: Propeller Blade Prop
• propeller rotation: Standard

returns propboapar:

• policy: No Returns

seller propboapar:

• rating: 99.1%
• # reviews: 115
• city: Los Angeles, California

general propboapar:

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

shipping propboapar:

• transit: 5-11 Days
• type: Calculated
• cost: $19.17
• class: Standard
• carrier: USPS
• service: USPS Ground Advantage

offer propboapar:

• sold: 0
• quantity: 1
• started: April 26, 2026
• options: Ship-to-home
• availability: In Stock
• best offers: True

payments propboapar:

• credit card: Diners-club
• wallet: Paypal
• other

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