Turning Point Propellers 31511120 Express Mach3 OS 15.6x11 3-Blade Stainless Steel Propeller

The Turning Point Express Mach3 OS 31511120 is a high-performance stainless steel propeller designed for serious boaters running 150-300+hp outboards and sterndrives with 4.75" gearcases. This 15.6" diameter, 11" pitch, 3-blade propeller features left-hand rotation and delivers exceptional hole shot, impressive bow lift, and class-leading cornering performance. Built from proprietary TP17™ stainless steel, it's engineered specifically for large horsepower bay boats, offshore center consoles, and high-performance pontoons and tri-toons.

Advanced Design Features:

• Proprietary TP17™ stainless steel construction with 20% higher chromium content for superior corrosion resistance and shine
• Nearly 250% stronger and 5X more durable than standard stainless steel propellers
• Optimized cup, leading edge, and trailing edge geometry for maximum performance
• Aggressive progressive rake and blade design for excellent bow lift and handling
• Large free-flowing exhaust ports with 40% more exhaust flow area to reduce backpressure and increase horsepower
• Performance-tuned pitch, rake angles, and exhaust vents for all-around superior performance
• Large diameter 3-blade design provides outstanding mid-range fuel economy

Universal Compatibility:

• Fits all 90hp and larger outboards with 4.75" gearcases from COX, Evinrude, Honda, Johnson, Mariner, Mercury, Nissan, OMC, OXE, Parsun, Suzuki, Tohatsu, Volvo Penta, and Yamaha
• Compatible with Mercury Alpha One and Bravo One sterndrives, plus Volvo Penta SX sterndrives
• Requires 500-series installation/hub kit for applications under 200hp or 700-series installation/hub kit for engines 200+hp (sold separately)

Whether you're looking to maximize performance, extend your cruise range, or improve fuel economy, the Express Mach3 OS delivers proven results that outperform both OEM and competitive aftermarket stainless steel propellers.