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Stainless Steel Propellers for 40-140HP Mercury Engines

by huadong fan 27 Jan 2025

When it comes to optimizing the performance of your Mercury outboard motor, choosing the right propeller is crucial. Stainless steel propellers offer durability, performance, and efficiency, making them an excellent choice for boat enthusiasts and professionals alike. Below, we provide an in-depth overview of stainless steel propellers designed for Mercury engines ranging from 40 to 140HP, complete with detailed specifications for blade count, pitch, diameter, OEM numbers, and more.

Key Features of Stainless Steel Propellers

Blade Count

Stainless steel propellers for Mercury engines come with either 3 or 4 blades. Here’s how they impact performance:

  • 3-Blade Propellers: Offer higher top speeds and are suitable for most applications, including cruising and recreational boating.

  • 4-Blade Propellers: Provide better acceleration, improved fuel efficiency, and enhanced handling, especially in rough waters.

Pitch and Diameter

The pitch and diameter of a propeller significantly influence your boat’s performance:

  • Pitch: Refers to the distance a propeller would move in one rotation if there were no resistance. A higher pitch propeller delivers faster speeds but requires more engine power.

  • Diameter: The total width of the propeller. Larger diameters are ideal for heavier boats, while smaller diameters suit lighter vessels.

Materials and Durability

Made from premium-grade stainless steel, these propellers are corrosion-resistant, ensuring longevity even in saltwater conditions. Their robust design allows them to handle higher RPMs and torque compared to aluminum alternatives.

Detailed Specifications

The following table summarizes the key details of stainless steel propellers for Mercury engines:

Engines Application:
40-140HP
4- 1/4" Gearcase
40/50hp(4 stroke/bigfoot)...all years
70hp...1987-1989
75hp(2&4 stroke)...1984-newer
80hp...1978-1989
90hp(2&4 stroke)...1978-newer
100hp...1988-newer
115hp...1978-newer
115hp(4 stroke)...2001-newer
125hp...1994-newer
140hp...1978-1981
650(4 cylinder)...1961-1970
650(2 cylinder) thru...1971
800/850(6 cylinder) thru...1972
800/850(4 cylinder)...1972-1977
900/1500 thru...1977
Force 75hp...99-newer &90/120/150hp...1995-newer
15 Spline Tooth
OEM# SOLAS part NO. B D P R
/ / 3 13 17 R
/ / 3 13 17 L
/ 1431-130-19 3 13 19 R
/ / 3 13 19 L
/ 1431-130-21 3 13 21 R
/ / 3 13 1/4 15 R
48-77344A45-SS 1441-133-17 3 13 1/4 17 R
/ / 3 13 1/4 17 L
/ / 3 13 1/2 14 R
48-854354A4 1431-135-15 3 13 1/2 15 R
/ / 3 13 1/2 15 L
/ / 3 13 1/2 16 R
/ / 3 13 1/2 17 R
/ / 3 13 1/2 18 R
/ / 3 13 1/2 19 R
/ / 3 13 1/2 20 R
/ / 3 13 1/2 21 R
/ / 3 13 1/2 22 R
48-17312A46 1431-138-13 3 13 3/4 13 R
48-77342A45-SS 1441-138-15 3 13 3/4 15 R
48-77343A45-SS / 3 13 3/4 15 L
/ / 3 13 7/8 17 R
/ / 3 13 7/8 17 L
/ / 3 13 7/8 19 R
/ / 3 13 7/8 19 L
/ / 3 14 12 R
/ / 3 14 15 R
/ / 3 14 17 R
/ / 3 14 19 R
/ / 3 14 21 R
/ / 3 14 21 L
/ / 3 14 23 R
/ / 3 14 1/2 15 R
48-832830A45-SS / 3 14 1/2 19 R
48-832831A45-SS / 3 14 1/2 19 L
48-8M0055549 1453-130-17 4 13 17 R
/ / 4 13 17 L
48-8M0055550 1453-130-19 4 13 19 R
/ / 4 13 19 L
/ 1453-130-21 4 13 21 R
/ / 4 13 21 L
/ 1453-133-15 4 13 1/4 15 R
/ / 4 13 1/4 15 L
/ 1453-135-13 4 13 1/2 13 R
/ / 4 13 1/2 13 L

Notable Models and Applications

  • 40/50HP Engines: Ideal for four-stroke and Bigfoot models of all years, providing balanced performance and fuel efficiency.

  • 75HP to 115HP Engines: Suitable for both two-stroke and four-stroke models, offering consistent power delivery for boats used in freshwater and saltwater.

  • 140HP Engines: Designed for older models (1978-1981), ensuring reliable performance for vintage vessels.

  • Force Engines (75HP, 90HP, 120HP, 150HP): Provide compatibility with newer models (1995 and later).

Rotation Types

Propellers are available in both right-hand (R) and left-hand (L) rotation, ensuring compatibility with various engine setups.

Why Choose Stainless Steel Propellers?

  1. Enhanced Durability: Stainless steel propellers withstand higher stress and resist bending, even in challenging conditions.

  2. Improved Performance: Their streamlined design minimizes drag, boosting speed and fuel efficiency.

  3. Versatility: Available in various sizes and pitches, these propellers cater to a wide range of boating needs, from leisure cruising to high-speed racing.

  4. Compatibility: Designed to fit Mercury engines precisely, ensuring optimal performance without modifications.

Important Note

While these stainless steel propellers are designed to fit Mercury engines, we are not affiliated with Mercury or Yamaha. Our propellers are third-party products manufactured to meet or exceed OEM specifications.

Final Thoughts

Choosing the right propeller can transform your boating experience, offering better handling, improved fuel efficiency, and enhanced speed. Stainless steel propellers are a smart investment for Mercury engine owners looking for long-lasting performance and reliability. Explore our range of high-quality propellers to find the perfect match for your vessel.

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