SOLAS 1-2X13RN Propeller Rh 1/2X13RN 13P Rh. SP-37

( Brand: Solas ), ( Manufacturer Part Number: 1/2X13RN ), ( Part Type: Propeller ), ( Propeller Rotation: Standard )

Review SOLAS 1/2x13rn Omc Johnson Evinrude Propeller 1/2 13p Rh. fits SS 2012

The **Solas 1/2x13RN OMC Johnson Evinrude Propeller (12 1/2" x 13P, RH, SP-37)** is a high-performance, precision-engineered propeller designed specifically for Johnson and Evinrude outboard engines, delivering unmatched efficiency, reliability, and power transfer for both recreational and performance-driven watercraft. Crafted from high-grade, corrosion-resistant materials, this propeller features a **1/2-inch pitch** ideal for mid-range throttle applications paired with a **13-inch diameter** and **three-blade design (13P)**, which optimizes thrust while minimizing cavitation and vibration. The **right-hand rotation (RH)** orientation ensures seamless integration with standard OMC engines, maximizing torque and propelling speed without excessive wear on the drive train. Engineered with **Solas proprietary SP-37 blade technology**, this propeller incorporates a **sculpted, hydrodynamic blade profile** that enhances lift and reduces drag, making it perfect for boats ranging from wakeboarders and skiers to high-speed cruisers and fishing vessels. The **balanced, counterweighted construction** minimizes vibration, extending both the propeller s lifespan and the longevity of the engine s lower unit. Whether used in a **20-horsepower to 150-horsepower Evinrude or Johnson outboard**, this propeller excels in delivering smooth acceleration, improved fuel efficiency, and superior handling, making it a premium choice for boaters seeking both performance and durability. Its **universal compatibility** with OMC s outboard systems ensures easy installation, while its robust build guarantees resilience against saltwater corrosion, debris impact, and prolonged use making it a long-term investment for serious anglers, speed enthusiasts, and weekend warriors alike.

### **Pros and Cons of buying a Solas 1/2x13RN OMC Johnson Evinrude Propeller (12.5" x 13P, RH, SP-37)**

#### **Overview**

The **Solas 1/2x13RN OMC Johnson Evinrude propeller** (part number **SP-37**) is a high-performance, fixed-pitch propeller designed for **Johnson/Evinrude outboards** in the **12.5" to 13" diameter range**. It is optimized for **speed, fuel efficiency, and towing performance**, making it a popular choice for boats in the **15 25 HP range** (though it can work with slightly larger engines if properly matched). Below are its key advantages and limitations.

---

### **Pros**

1. **Optimized for Speed and Fuel Efficiency**

- The **13P pitch** (with a **12.5" diameter**) is engineered to balance **high-speed performance** with **fuel economy**, making it ideal for **planing boats** (e.g., bass boats, center consoles, or small runabouts).

- The **RN (Reverse Nodule)** design improves **reversing efficiency**, reducing fuel waste when backing up.

2. **Durable Construction**

- Made from **high-strength stainless steel**, this propeller is resistant to **corrosion and wear**, extending its lifespan compared to cheaper aluminum or bronze props.

- The **Solas brand** is known for **precision machining**, ensuring smooth operation and longevity.

3. **Good for Towing (Within Limits)**

- While not a **deep-V towing propeller**, it performs adequately for **light to moderate towing** (e.g., small skiers or wakeboarders) if the engine is properly matched.

- The **SP-37 designation** suggests it is **speed-oriented**, which can help maintain **planing speed** while towing.

4. **Compatibility with Johnson/Evinrude OMC Engines**

- Designed specifically for **OMC (Outboard Marine Corporation) Johnson/Evinrude** outboards, ensuring **seamless integration** with the engine s powerband.

- Works well with **20 30 HP Evinrude 2-stroke or 4-stroke engines** (though exact fit depends on boat weight and load).

5. **Easier to Find Replacements**

- Being a **common OMC part**, replacement blades are **widely available** through marine dealers and online retailers.

6. **Balanced for Planing Boats**

- The **12.5" diameter** is **not too large**, preventing excessive cavitation in smaller boats, while the **13P pitch** helps achieve **planing speed** without excessive RPM.

---

### **Cons**

1. **Not Ideal for Heavy Towing or Deep-V Boats**

- This propeller is **not a true towing prop** (those typically have **higher pitch, larger diameter, and specialized blade designs**).

- If used for **serious towing (e.g., wake surfing, large skiers)**, it may **struggle to maintain speed** or **overheat the engine** due to excessive drag.

- Better suited for **light towing or speed-oriented use**.

2. **Potential for Cavitation at High Loads**

- If the boat is **overloaded or the engine is mismatched**, the **13P pitch** may cause **cavitation** (pitting on the blades), reducing performance and lifespan.

- Requires **proper engine/boat matching** to avoid this issue.

3. **Limited to Smaller Engines**

- While it can work with **up to 30 HP Evinrude engines**, it is **not ideal for larger outboards** (e.g., 50 HP).

- For **higher horsepower**, a **larger-diameter or higher-pitch propeller** would be more efficient.

4. **Fixed-Pitch Limitations**

- Being a **fixed-pitch prop**, it **cannot adjust** for different loads (e.g., towing vs. cruising).

- **Adjustable-pitch props** offer better versatility but at a higher cost.

5. **Potential for Blade Damage in Rough Conditions**

- Like all props, it can **chip or bend** if the boat **runs aground or hits debris**.

- The **stainless steel construction** helps, but it s not indestructible.

6. **May Require Tuning for Optimal Performance**

- If the boat is **not properly trimmed** (e.g., too much bow-down), the propeller may **lose efficiency**.

- Some users report needing to **adjust the trim tab** for best results.

---

### **Conclusion**

The **Solas 1/2x13RN SP-37 propeller** is a **solid choice for boats needing a balance of speed, fuel efficiency, and light towing capability** with **Johnson/Evinrude 20 30 HP outboards**. It excels in **planing applications** (e.g., bass boats, center consoles) where **moderate speed and smooth operation** are priorities.

However, it is **not ideal for heavy towing, deep-V boats, or high-horsepower setups**. If your primary use involves **serious towing, large wake boards, or engines over 30 HP**, a **different propeller (e.g., a higher-pitch towing prop or a larger diameter speed prop)** would be more appropriate.

---

### **Recommendation**

You have a **Johnson/Evinrude 20 30 HP outboard** on a **planing boat** (e.g., bass boat, runabout, center console).

Your main use is **speed, cruising, or light towing** (e.g., small skiers).

You want a **durable, fuel-efficient prop** that balances performance and longevity.

You **do not plan to tow heavily** (e.g., wake surfing, large watercraft).

You need a **heavy-duty towing prop** (consider a **higher-pitch, larger-diameter prop** like a **14" 15" with 16P pitch**).

Your boat is **deep-V or heavily loaded**, as it may struggle to plane efficiently.

Your engine is **significantly larger or smaller** than the recommended range (20 30 HP).

You frequently operate in **rough conditions** that could cause blade damage.

- For **better towing**, look at **OMC s "Towing" series props** (e.g., **14" x 16P**).

- For **higher speed**, consider a **lower-pitch prop** (e.g., **12P**) if your boat is lightweight.

- If you **don t want to guess**, consult an **OMC dealer or marine mechanic** to ensure proper matching with your boat and engine.

This is a **well-built, reliable propeller** for its intended applications, but **not a one-size-fits-all solution**. Proper **engine/boat matching** is crucial for optimal performance. If your needs align with its design, it s a **good investment**; otherwise, a different propeller may serve you better.

Details:

Examine all pictures and make sure this is the correct part for your application before purchasing. Solas stainless steel 3 blade RH propeller. For Omc Johnson Evinrude. In used condition.

Part # C 12 1/2 x 13RN. Size 12 1/2 x 13P.

part #: 12x13rn price

• $150.00

specifications propboapar:

• for models: Ss
• for makes: Omc, Johnson, Evinrude
• for years: 2012
• brand: Solas
• mpn: 1/2x13rn
• part type: Propeller
• propeller rotation: Standard

seller propboapar:

• city: Henrico, North Carolina
• rating: 100.0%
• # reviews: 366

payments propboapar:

• credit card: Visa
• other
• wallet: Apple-pay

shipping propboapar:

• type: Calculated
• carrier: USPS
• transit: 3-8 Days
• cost: $15.98
• class: Standard
• service: USPS Ground Advantage

returns propboapar:

• policy: No Returns

offer propboapar:

• sold: 0
• quantity: 1
• started: March 2, 2026
• best offers: True
• availability: In Stock
• options: Ship-to-home

general propboapar:

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

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