MERCURY 48-8M0151387 Tempest Pitch Propeller 14-5/8

( Manufacturer Part Number: 48-8M0151387 ), ( Part Type: Propeller ), ( Warranty: 1 Year ), ( Propeller Rotation: Standard )

Review MERCURY Tempest Plus 14-5/8 Pitch Propeller fits 2026

The **Mercury 48-8M0151387 Tempest 14-5/8 26 Pitch Propeller** is a high-performance, precision-engineered marine propeller designed for maximum efficiency, reliability, and power transfer in medium to large outboard and sterndrive applications. Crafted from a proprietary **7075-T6 aluminum alloy**, this propeller combines exceptional strength with a lightweight construction, ensuring durability while minimizing fatigue and corrosion critical factors for both recreational and professional boating use. The **Tempest series** is renowned for its aerodynamic blade design, which optimizes thrust and fuel economy by reducing cavitation and improving wake efficiency. With a **14.625-inch diameter** and a **26-pitch measurement**, this propeller strikes an ideal balance between acceleration and top-end speed, making it well-suited for boats ranging from mid-sized cruisers to performance-oriented vessels like fishing boats, speedboats, or even small powerboats requiring a blend of speed and handling precision.

The **8-blade configuration** of the Tempest model enhances stability and reduces vibration, delivering a smoother ride and greater control at both low and high RPMs. Each blade is meticulously contoured with **hydrodynamic shaping**, including a **cupped leading edge** and **swept-back trailing edge**, which minimizes drag and maximizes thrust efficiency across a broad range of operating conditions. The **fixed-pitch design** ensures consistent performance without the need for frequent adjustments, while the **balanced weight distribution** reduces engine strain and prolongs the lifespan of the drive unit. Whether accelerating quickly from a stop or maintaining cruising speed, this propeller excels in delivering **clean, responsive power** with minimal noise and turbulence, making it a favorite among boat owners who demand both performance and longevity.

Built to withstand the rigors of saltwater and freshwater environments, the Tempest propeller features **anodized aluminum blades** that resist corrosion and pitting, even in harsh marine conditions. The **high-strength alloy** ensures resistance to bending or warping, while the **precision-machined hub** guarantees a secure, vibration-free connection to the outboard or sterndrive shaft. For added durability, the propeller is designed with **reinforced blade roots** and **optimized blade angles**, which enhance structural integrity while maintaining aerodynamic efficiency. Whether used in a **Mercury outboard, Yamaha, or other compatible sterndrive system**, this propeller is engineered to elevate performance, improve fuel efficiency, and extend the operational life of the propulsion system making it a premium choice for boaters who prioritize both power and precision.

**Pros and Cons of buying a Mercury 48-8M0151387 Tempest 14.5/8 26-Pitch Propeller**

1. **Performance Optimization** This propeller is designed for Mercury 4-cylinder outboards, particularly the 40-80 HP range, and is optimized for the Tempest series. It is engineered to balance power and efficiency, which can improve acceleration, top-end speed, and fuel economy compared to stock or generic props.

2. **Durability and Build Quality** Mercury propellers are known for their high-quality materials, including stainless steel blades, which resist corrosion and wear better than aluminum or lower-grade props. This extends the propeller s lifespan, especially in saltwater or rough conditions.

3. **Fuel Efficiency** A well-matched propeller like this one can reduce fuel consumption by optimizing the engine s operating range. The 26-pitch is likely chosen to keep the engine in its most efficient RPM range, reducing strain and improving mileage.

4. **Compatibility with Mercury Engines** Since this propeller is specifically designed for Mercury outboards, it integrates seamlessly with the engine s power delivery system. This reduces the risk of mismatches that could cause excessive wear or poor performance.

5. **Resale Value and Reliability** Mercury propellers are widely recognized in the marine industry, making them easier to sell or replace if needed. Their reputation for reliability also means fewer unexpected failures.

6. **Customization Potential** If you plan to modify your engine s power or tuning, this propeller can serve as a solid base for further adjustments. Mercury offers a range of pitch and diameter options, allowing for fine-tuning over time.

7. **Warranty Support** Mercury propellers typically come with warranties, providing coverage against manufacturing defects. This adds peace of mind, especially for high-use applications.

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1. **Cost** High-quality propellers like this one are more expensive than generic or aftermarket alternatives. The price may be a significant investment, particularly if you re on a tight budget.

2. **Potential Overkill for Low-Power Applications** If your engine is running at very low power (e.g., under 40 HP), a 14.5/8-inch propeller might be unnecessarily large, leading to reduced acceleration or inefficient operation. Always verify the engine s horsepower and intended use before purchasing.

3. **Installation Complexity** Replacing a propeller requires removing the engine from the water, which can be time-consuming and may require additional tools or assistance. If you re not comfortable with engine work, you may need to hire a professional, adding to the cost.

4. **Weight** Stainless steel propellers are heavier than aluminum ones, which can make handling and installation slightly more difficult, especially for smaller boats.

5. **Pitch Sensitivity** The 26-pitch is ideal for specific conditions (e.g., cruising, light planing). If you frequently operate in rough water, heavy loads, or high-speed planing, a different pitch (e.g., lower for planing or higher for deep-V hulls) might be more suitable.

6. **Market Availability** While Mercury propellers are reliable, finding replacement parts or matching props for older models can sometimes be challenging, though this is less of an issue with newer models.

7. **Potential for Damage** Like any propeller, this one can sustain damage from debris, grounding, or improper handling. Stainless steel is durable, but it s not indestructible, and repairs can be costly.

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The Mercury 48-8M0151387 Tempest 14.5/8 26-pitch propeller is a well-engineered, high-performance option for Mercury 4-cylinder outboards, particularly in the 40-80 HP range. It offers significant benefits in terms of efficiency, durability, and compatibility, making it a strong choice for boat owners who prioritize performance and longevity. However, it is not without drawbacks, including its cost, potential overmatching for low-power applications, and the complexity of installation.

- You have a Mercury 4-cylinder outboard (40-80 HP) and want to optimize its performance for cruising or light planing.

- You operate in conditions where fuel efficiency and durability are important (e.g., frequent use, saltwater environments).

- You re willing to invest in a high-quality propeller that will last and improve your boat s handling.

- Your engine is significantly underpowered for this propeller (e.g., below 40 HP), as it may not perform optimally.

- You re on a tight budget and can find a similarly rated aftermarket propeller at a lower cost without sacrificing quality.

- You lack experience with engine work and are uncomfortable with installation or potential adjustments.

Before purchasing, consult a marine mechanic or use a propeller calculator (such as Mercury s or third-party tools like *PropCalc*) to confirm the propeller s suitability for your specific engine model, boat type, and intended use. If possible, test the propeller in your conditions for a short period to ensure it meets your expectations before committing long-term.

Details:

This propeller has a pitch of 26 inches and operates with standard rotation, making it suitable for variety boat engines speed ranges. It comes with a 1-year warranty and the manufacturer part number 48-8M0151387. Built to last and perform efficiently, this propeller is a reliable choice for enhancing the performance of your boat.

part #: 488m0151387 price

• $766.37

specifications propboapar:

• for makes: Mercury
• for years: 2026
• mpn: 48-8m0151387
• part type: Propeller
• warranty: 1 Year
• propeller rotation: Standard

seller propboapar:

• rating: 100.0%
• # reviews: 112
• city: Bristol, Tennessee

shipping propboapar:

• class: Standard
• carrier: FedEx
• service: FedEx Ground / FedEx Home Delivery
• transit: 4-9 Days
• type: Calculated
• cost: $32.15

general propboapar:

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

payments propboapar:

• credit card: Mastercard
• wallet: Google-pay
• other
• money order

returns propboapar:

• policy: No Returns

offer propboapar:

• best offers: True
• availability: In Stock
• quantity: 1
• started: March 29, 2026
• sold: 0
• options: Ship-to-home

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