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11 5/8x12 A3r Prop Sema

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$61.99
SKU:
M3287-3117-12
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Description

11 5/8x12 Propeller for Polaris Engines | Boat Supply Store

This 11 5/8 x 12 A3r propeller from POLARIS PROPELLER USA, INC. is engineered to deliver robust thrust for mid-range horsepower outboard engines. Its specific pitch and diameter are optimized for efficient planing and sustained cruising speeds in various marine environments, from shallow coastal waters to larger lakes. This direct-fit replacement ensures seamless integration with compatible engine models, facilitating optimal hydrodynamic performance.

Key Features

  • Optimized Thrust for enhanced acceleration and hull lift.
  • Durable Aluminum Construction for reliable performance and corrosion resistance.
  • 11 5/8 Inch Diameter ensures proper water engagement.
  • 12 Inch Pitch provides efficient cruising speeds.
  • A3r Blade Design engineered for reduced ventilation.
  • Direct Fit Replacement for seamless installation.
  • OEM Grade Performance to match factory specifications.
  • Cost-Effective Upgrade for improved engine efficiency.

Specifications

Product Specifications
Diameter11 5/8 inches
Pitch12 inches
Blade Count3
MaterialAluminum
Hub SizeStandard (refer to engine manual for specific spline count)

Who This Is For

This propeller is ideal for owners of Polaris outboard engines requiring a direct-fit 11 5/8 x 12 size replacement to restore or enhance propulsion performance. It is suited for boaters seeking a cost-effective, durable solution for general boating and light fishing applications.

How It Compares

Feature11 5/8x12 Propeller for Polaris EnginesMichigan Wheel
Diameter11 5/8 inches11 1/2 inches
Pitch12 inches
MaterialAluminumAluminum
Blade Count33

Common Concerns Answered

Will this propeller fit my specific Polaris outboard model?

This 11 5/8x12 A3r propeller is designed as a direct replacement for Polaris engines that specify this exact propeller size and spline count. Always verify your engine's required propeller specifications against this product's dimensions and refer to your owner's manual for confirmation.

Is propeller installation difficult?

Propeller installation is rated at an Install Difficulty of 1, indicating it is very easy. Typically, it involves removing a cotter pin and nut, sliding off the old propeller, and installing the new one, followed by re-securing the nut and cotter pin.

How does this propeller perform compared to my original equipment (OE) propeller?

This A3r propeller is manufactured to meet or exceed OEM performance standards for Polaris engines. It is engineered for comparable thrust and efficiency, providing reliable operation for your specific horsepower range and hull type.

Frequently Asked Questions

What does the 'A3r' in the propeller model designation signify?

The 'A3r' likely refers to specific design characteristics of the propeller blades, potentially indicating features like improved venting characteristics or a particular airfoil shape designed for efficient water flow.

What is the primary benefit of an 11 5/8 inch diameter propeller?

An 11 5/8 inch diameter offers a balance of surface area for water engagement, contributing to effective thrust generation for planing and maintaining speed. It's a common size for mid-range outboard engines.

How does a 12-inch pitch affect boat performance?

A 12-inch pitch generally translates to higher top-end speed and more efficient cruising compared to a lower pitch, while still providing adequate acceleration for many hull types.

Can this propeller be used in saltwater environments?

This propeller is constructed from aluminum, which offers good corrosion resistance. However, for optimal longevity in saltwater, regular rinsing with freshwater after use is recommended.

What is the expected lifespan of an aluminum propeller?

The lifespan of an aluminum propeller depends heavily on usage, operating environment, and maintenance. Typical service life can range from several years to over a decade for recreational use with proper care and avoidance of impact damage.

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