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11 3/8 X 12 A3r Prop

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$127.99
SKU:
M142409
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Description

11 3/8 X 12 Propeller for Yamaha | Boat Supply Store

Optimize thrust for lighter outboard applications with this 11 3/8" diameter, 12" pitch A3r aluminum propeller from Michigan Wheel. Engineered for efficient operation, it features a robust aluminum construction designed to withstand marine environments. Ideal for repowering smaller aluminum jon boats or skiffs used for shallow water fishing on lakes like Lake Conroe.

Key Features

  • Durable aluminum construction for long-lasting use
  • Optimized 11 3/8" diameter for efficient water engagement
  • 12" pitch delivers balanced speed and acceleration
  • A3r design ensures reliable performance characteristics
  • Direct replacement for specific outboard applications
  • Precision balanced for smooth operation
  • Corrosion-resistant materials for saltwater or freshwater use
  • Cost-effective performance upgrade

Specifications

Product Specifications
Diameter11 3/8 inches
Pitch12 inches
MaterialAluminum
Blade Count3

Who This Is For

This propeller is intended for boaters with smaller outboard engines seeking a direct replacement or performance upgrade. It is particularly suited for owners of aluminum jon boats or skiffs operating in moderate speed applications.

How It Compares

Feature11 3/8 X 12 Propeller for YamahaUnknown
Diameter11 3/8 inchesTypically less capable
Pitch12 inchesTypically less capable
MaterialAluminumTypically less capable
Blade Count3Typically less capable

Common Concerns Answered

Will this propeller fit my specific outboard motor?

This propeller is designed for specific outboard motor models. Please consult your outboard's service manual or our fitment guide to ensure compatibility before purchasing. SKU M142409 is frequently associated with certain Yamaha engine configurations.

How does an aluminum propeller hold up in saltwater?

While aluminum propellers offer excellent value, they are more susceptible to corrosion and erosion in saltwater environments than stainless steel. Proper maintenance, including regular rinsing and inspection, is crucial for longevity.

What is the difference between pitch and diameter?

Diameter refers to the total circle swept by the propeller blades, influencing its ability to move water. Pitch, measured in inches, is the theoretical distance the propeller would advance in one revolution; a higher pitch generally means higher top speed, while a lower pitch offers better acceleration.

Frequently Asked Questions

What engine sizes is a 11 3/8" x 12" propeller typically used for?

Propellers with this diameter and pitch are generally suited for smaller to mid-range outboard engines, typically in the 40-70 horsepower range, depending on the specific hull and boat weight.

What does the 'A3r' designation mean for this propeller?

The 'A3r' designation typically refers to a specific blade design or series from Michigan Wheel, indicating certain performance characteristics or construction methods. It signifies a particular profile and rake angle optimized for certain engine applications.

How do I determine the correct propeller pitch for my boat?

The correct pitch depends on your boat's hull design, weight, and the power of your engine. Over-propping (too high a pitch) can lug the engine and reduce performance, while under-propping (too low a pitch) can cause the engine to over-rev. Consulting your engine manufacturer's recommendations is advised.

Can I use this propeller in shallow water conditions?

While this is an aluminum propeller, its 3-blade design is suitable for general use. However, like all propellers, it is susceptible to damage from striking submerged objects in shallow water. Always operate with caution in uncharted depths.

What is the warranty on this Michigan Wheel propeller?

Please refer to the manufacturer's warranty information for specific details regarding this Michigan Wheel product. Typically, marine propellers have limited warranties covering manufacturing defects.

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