Turning Point Propellers Express Mach3 OS Series - 3-Blade Stainless Steel Propeller for 90hp+ Outboards - 15.6" Diameter, 17 Pitch, Right Hand

Express Mach3 OS - Right Hand - Stainless Steel Propeller - OS-1617 - 3-Blade - 15.6" x 17 Pitch

The Express Mach3 OS Series of Stainless Steel Propellers are the next step in the evolution of our very popular larger diameter VO series. Our Engineers and Propeller Experts made improvements to the cup, leading and trailing edges, and the aggressive progressive rake and blade geometry that are Turning Point hallmarks. These modifications have produced a propeller with excellent hole shot, impressive bow lift, and class leading cornering.

The Express Mach3 OS is perfectly matched to large horsepower bay boats, offshore center consoles, and high horsepower pontoons/tri-toons. It will fit all 90hp and larger 4.75" gearcase outboards from all engine manufacturers, and Mercury Alpha One and Bravo One, and Volvo Penta SX sterndrives. Large diameter three blade propellers offer great mid-range fuel economy in many applications. Whether you are looking to maximize your time on the water, extend your cruise range, or just stretch your fuel dollars, the Express Mach3 OS is a great choice to get the most out of your boat.

Proprietary Stainless Steel, TP17

Formulated to meet the exacting requirements of the New Express Mach3 and Mach4 designs. 20% higher chromium content than the competition - more shine, better corrosion resistance. Almost 250% Stronger and 5X more durable than run-of-the-mill stainless steel. This new material allows Turning Point's Engineers and Designers the freedom to produce radical new designs that will help you wring the most performance out of your boat.

Large Free Flowing Exhaust Ports

Turning Point's Propeller Housings have massive Exhaust flow pathways. Their Propellers have 40% more exhaust flow Area versus competitive product. More exhaust flow and less backpressure can generate more horsepower. Like headers for your boat.

Turning Point manufactures Express propellers to fit 9.9(bigfoot)-300+hp Evinrude, Force, Honda, Johnson, Mariner, Mercruiser, Mercury, Nissan, OMC, Parsun, Suzuki, Tohatsu, Volvo Penta, and Yamaha Outboards and Sterndrives. Choose one of our Lifetime Warranty MasterGuard Installation Kits to fit your engine, then choose the propeller that matches your boating requirements. There are 3 and 4 blade, left and right rotation prop models with a variety of diameter and pitch options available for almost all boat types. Turning Point's Props Run Faster, Pull Harder, and Handle Better.

Note: A Hub Kit is required for installation of this propeller. See the Turning Point Selection Chart or the Prop Wizard for hub kit selection.

WARNING: This product can expose you to chemicals including LEAD which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

The Turning Point Propellers Express Mach3 OS Series offers a high-performance solution for large horsepower bay boats, offshore center consoles, and high-powered pontoons or tri-toons. Crafted from proprietary stainless steel with 20% higher chromium content, the OS-1617 propeller provides excellent corrosion resistance, enhanced shine, and nearly 250% greater strength compared to standard stainless steel. Its advanced blade geometry, including improvements to the cup, leading and trailing edges, and aggressive rake, delivers superior hole shot, impressive bow lift, and exceptional cornering capabilities. Designed to fit all 90hp and larger 4.75-inch gearcase outboards from all major manufacturers—including Mercury, Yamaha, Honda, and others—this propeller is an ideal choice for boaters seeking maximum performance and fuel efficiency. Its large diameter, three-blade design balances mid-range fuel economy with power, making it suitable for extended cruises or optimizing overall boat handling.
Turning Point's unique exhaust flow design features massive exhaust ports that provide 40% more flow area than competing products. This increased airflow reduces backpressure, translating to more horsepower and better overall engine performance, akin to upgrading your boat’s headers. The propeller's robust construction and sophisticated blade design enable faster speeds, more responsive handling, and improved durability. Additionally, the OS series is compatible with various sterndrives, including Mercury Alpha One, Bravo One, and Volvo Penta SX, ensuring versatility across a wide range of marine applications. When combined with Turning Point's Lifetime Warranty MasterGuard Installation Kits, these propellers offer a reliable, high-quality upgrade to maximize your boat’s capabilities.
Please note that a hub kit is required for installation. For optimal fit and performance, consult the Turning Point Selection Chart or Prop Wizard to select the appropriate hub kit. Designed for serious boaters, the Turning Point Express Mach3 OS series propellers run faster, pull harder, and handle better, making them a top choice for demanding marine environments.

Features:

• Material: Proprietary stainless steel with 20% higher chromium content for durability and corrosion resistance

• Blade Design: Enhanced cup, leading and trailing edges, and aggressive rake for improved performance

• Exhaust Ports: Large, free-flowing exhaust pathways with 40% more flow area to boost horsepower

• Compatibility: Fits all 90hp and larger 4.75" gearcase outboards from all major brands including Mercury, Yamaha, Honda, and Volvo Penta

• Application: Suitable for bay boats, offshore center consoles, high horsepower pontoons, and tri-toons

• Construction: Designed for maximum strength, speed, and handling with a 3-blade, right-hand rotation