Turning Point Propellers 31511920 Express Mach3 OS 15.6x19 3-Blade Stainless Steel Propeller Left-Hand

The Turning Point Express Mach3 OS 31511920 is a premium stainless steel propeller designed for high-performance applications on bay boats, offshore center consoles, and high-horsepower pontoons. This 15.6-inch diameter, 19-pitch, 3-blade propeller features left-hand rotation and is engineered to deliver exceptional hole shot, impressive bow lift, and class-leading cornering performance.

Key Features:

• TP17™ Proprietary Stainless Steel: Features 20% higher chromium content than competitors for superior corrosion resistance and shine, with nearly 250% greater strength and 5X more durability than standard stainless steel
• Advanced Blade Geometry: Refined cup design, leading and trailing edges, and aggressive progressive rake optimize performance across all conditions
• Large Free-Flowing Exhaust Ports: 40% more exhaust flow area than competitive propellers reduces backpressure and helps maximize horsepower output
• Optimized for 150-300+HP Engines: Specifically designed for 4.75-inch gearcase outboards and compatible with Mercury Alpha One and Bravo One, plus Volvo Penta SX sterndrives
• Excellent Fuel Economy: Large diameter 3-blade design provides superior mid-range fuel efficiency for extended cruising range
• Universal Compatibility: Fits COX, Evinrude, Honda, Johnson, Mariner, Mercury, MerCruiser, Nissan, OMC, OXE, Parsun, Suzuki, Tohatsu, Volvo Penta, and Yamaha outboards and sterndrives

The Express Mach3 OS Series represents the evolution of Turning Point's popular larger diameter propeller line, incorporating race-proven finishing and tuning practices with state-of-the-art casting technology. The performance-tuned pitch, rake angles, and exhaust vents deliver all-around performance improvements over both OEM and aftermarket stainless steel propellers. Installation requires 500-series hub kits for engines under 200HP or 700-series hub kits for 200+HP applications (sold separately).