Choosing the right propeller for your Mercury 115 2 Stroke outboard engine is crucial to maximize performance, fuel efficiency, and durability. Below is a comparison table of the top-rated propellers designed specifically for Mercury 115 2 Stroke motors, featuring aluminum and stainless steel options, three and four-blade designs, and varying pitch sizes to suit different boating needs.
| Product | Material | Diameter x Pitch | Blade Count | Rotation | Compatibility |
|---|---|---|---|---|---|
| OEM 13 1/4 x17 Upgrade Aluminum Propeller | Aluminum | 13.25″ x 17″ | 3 | Right | Mercury 60-125 HP, 15 Spline |
| Qiclear 13 1/4 x17 Stainless Steel Propeller | Stainless Steel | 13.25″ x 17″ | 3 | Right | Mercury 40-140 HP, 15 Spline |
| WINGOGO 13 1/4×17 Aluminum Prop with Flo-Torq II Hub | Aluminum | 13.25″ x 17″ | 3 | Right | Mercury 40-140 HP, 15 Spline |
| CAPTAIN 4-Blade 13×19 Stainless Steel Propeller | 316 Stainless Steel | 13″ x 19″ | 4 | Right | Mercury 40-140 HP, 15 Spline |
| YOUNG PROPS 13 1/2 x 15 Aluminum Propeller | Aluminum | 13.5″ x 15″ | 3 | Right | Mercury 40-150 HP, 15 Spline |
OEM 13 1/4 x 17 Aluminum Propeller for Mercury Outboard

This OEM 13 1/4 x 17 Aluminum Propeller fits Mercury outboard motors from 60 to 125 HP with a 15 spline tooth configuration. Featuring a three-blade design with right-hand rotation, it utilizes high-quality aluminum that is both lightweight and durable. The propeller boasts outstanding quality due to strict quality control, ensuring excellent speed, acceleration, and fuel efficiency. The black finish improves corrosion resistance, and included hub kits provide easy installation and maintenance. This model is designed to reduce engine wear and tear, making it a practical choice for maximizing outboard performance.
Qiclear 13 1/4 x 17 Stainless Steel Outboard Propeller

The Qiclear 13 1/4 x 17 Stainless Steel Propeller is crafted from high-quality 316 stainless steel, featuring a vacuum casting process and five-layer surface treatment to enhance toughness and corrosion resistance. Compatible with a broad range of Mercury engines from 40 to 140 HP, this propeller offers a 15 spline tooth pattern and right-hand rotation. Its heat-treated paddle blades are designed to resist breakage, delivering high durability without sacrificing top speed and efficient acceleration. This stainless steel option is ideal for boaters looking for longevity and performance in challenging water conditions.
WINGOGO 13 1/4×17 Aluminum Propeller with Flo-Torq II Hub

This three-blade WINGOGO Aluminum Propeller measures 13.25″ in diameter with a 17″ pitch and is compatible with Mercury Black Max and other outboard motors ranging from 40 to 140 HP. It includes a Flo-Torq II hub kit for enhanced shock absorption and reduced vibration, which helps protect the engine and lower maintenance needs. Recommended for boats with top speeds under 50 MPH, this propeller is easy to maintain and repair, making it a practical, cost-effective option for casual and recreational boaters looking for reliable performance on the water.
CAPTAIN 4-Blade 13 x 19 Stainless Steel Propeller for Mercury

Designed with four blades and made from genuine 316 corrosion-resistant stainless steel, the CAPTAIN 13 x 19 Propeller is ideal for Mercury outboards from 40 to 140 HP. A larger pitch of 19 inches supports higher top speed capabilities, while the durable stainless steel construction withstands harsh marine environments. This propeller undergoes eight precise manufacturing procedures, including dynamic balance testing and CNC machining, to ensure optimal performance and smooth operation. Its right-hand rotation and 15 spline tooth configuration make it compatible with many Mercury motors, offering better acceleration and fuel efficiency for demanding boating needs.
YOUNG PROPS 13 1/2 x 15 Aluminum Boat Propeller

The YOUNG PROPS 13 1/2 x 15 Aluminum Propeller features a 13.5-inch diameter and 15-inch pitch, designed for Mercury engines between 40 and 150 HP. With three blades and 15 spline teeth, this right-hand rotation prop keeps durability and speed balanced while reducing engine wear. Made from alloy aluminum and backed by strict quality control, it offers a reliable OEM replacement or backup propeller. This model is well-suited for fishermen and casual boaters searching for a lightweight, efficient prop that delivers solid acceleration and maintains fuel economy.
Buying Guide: How to Choose the Best Propeller for Mercury 115 2 Stroke
Choosing the best propeller for your Mercury 115 2 Stroke involves several important factors to enhance your boat’s performance and efficiency. Understanding these considerations will help you select the ideal prop for your specific boating needs.
Material: Aluminum vs Stainless Steel
Aluminum propellers are typically lighter, more affordable, and easier to repair. They are well-suited for casual boaters and those who favor budget-friendly options. Stainless steel propellers offer superior strength, durability, and a longer lifespan, delivering better acceleration and top-end speed but at a higher price point.
Diameter and Pitch
The diameter refers to the size of the circle the blades make during rotation, while the pitch is the distance the propeller would move in one revolution through a soft solid. A higher pitch prop covers more distance but requires more power, suited for bigger engines and high-speed boats. Lower pitch provides better acceleration and is useful for heavier loads or slower speeds.
Blade Count
Three-blade props are common for general use, offering a good balance of speed and fuel efficiency. Four-blade props provide more thrust and smoother acceleration, ideal for heavier boats or rough water conditions but may reduce top speed slightly.
Rotation and Spline Tooth Compatibility
Ensure the propeller rotation (typically right-hand for most Mercury motors) matches your engine. Also, check the spline tooth count on the prop shaft; most Mercury 115 2 Stroke models use a 15 spline configuration for proper fit and power transfer.
Hub Style
Flo-Torq hubs are designed to absorb sudden impacts and reduce vibration. Ensure your replacement propeller includes the appropriate hub kit or matches your hub style for seamless installation and optimal operation.
Boat and Engine Usage
Consider your typical boating activity—fishing, cruising, watersports—and the usual load. A propeller suited for high speeds might not perform well with heavy loads, and vice versa. Match your prop choice with your boat’s size, weight, and primary use for best results.