Turning Point Propellers 31512320 Express Mach3 OS 15.6x23 3-Blade Stainless Steel Propeller Left-Hand

The Turning Point Express Mach3 OS 31512320 is a high-performance 3-blade stainless steel propeller designed for boats with 150-300+hp outboards and sterndrives equipped with 4.75" gearcases. Featuring a 15.6" diameter, 23" pitch, and left-hand rotation, this propeller represents an evolution of Turning Point's popular large-diameter VO series with enhanced cup design, refined leading and trailing edges, and aggressive progressive rake geometry.

Key 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
• Large free-flowing exhaust ports with 40% more exhaust flow area than competitive products for reduced backpressure
• Excellent hole shot performance with impressive bow lift and class-leading cornering characteristics
• Optimized for large horsepower bay boats, offshore center consoles, and high-performance pontoons/tri-toons
• Superior mid-range fuel economy for extended cruise range and reduced fuel costs
• Performance-tuned pitch, rake angles, and exhaust vents for all-around performance improvement
• Compatible with COX, Evinrude, Honda, Johnson, Mariner, Mercury, MerCruiser, Nissan, OMC, OXE, Parsun, Suzuki, Tohatsu, Volvo Penta, and Yamaha outboards and sterndrives
• Fits Mercury Alpha One and Bravo One, and Volvo Penta SX sterndrives

The Express Mach3 OS delivers substantial performance advantages over aluminum propellers and competitive stainless steel designs. Large-diameter 3-blade construction provides excellent acceleration and handling while maintaining efficient cruise performance. Requires 500-series installation/hub kit for applications under 200hp or 700-series kit for engines 200+hp (sold separately).