Turning Point Propellers 31511320 Express Mach3 OS 15.6x13 3-Blade Stainless Steel Propeller Left-Hand

The Turning Point Express Mach3 OS 31511320 is a high-performance 3-blade stainless steel propeller designed for serious boaters running 150-300+hp outboards and sterndrives with 4.75" gearcases. This left-hand rotation propeller features a 15.6" diameter and 13" pitch, optimized for large horsepower bay boats, offshore center consoles, and high-performance pontoons and tri-toons.

Advanced Blade Design and Performance:

• Refined cup geometry with optimized leading and trailing edges for superior water flow
• Aggressive progressive rake and large blade area maximize thrust and control
• Excellent hole shot gets you on plane quickly and efficiently
• Impressive bow lift improves ride quality and visibility
• Class-leading cornering performance maintains speed through turns
• Large diameter design delivers exceptional mid-range fuel economy

TP17™ Proprietary Stainless Steel Construction:

• 20% higher chromium content than competitors for superior corrosion resistance and shine
• 250% stronger than standard stainless steel alloys
• 5X more durable for long-lasting performance in demanding conditions
• Advanced material allows for radical blade designs that extract maximum performance

Optimized Exhaust Flow:

• Massive exhaust ports provide 40% more flow area than competitive propellers
• Reduced backpressure allows the engine to produce more horsepower
• Performance-tuned exhaust venting improves overall efficiency

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

Whether you're looking to maximize performance, extend your cruising range, or improve fuel efficiency, the Express Mach3 OS delivers professional-grade results backed by Turning Point's engineering expertise and state-of-the-art casting technology.