Turning Point Propellers Express Mach3 OS Series - 15.625-inch Diameter, 13 Pitch Stainless Steel 3-Blade Propeller for High Horsepower Outboards and Sterndrives

Express Mach3 OS - Right Hand - Stainless Steel Propeller - OS-1613 - 3-Blade - 15.625" x 13 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 boats, including bay boats, offshore center consoles, and high-powered pontoons or tri-toons. Crafted from proprietary TP17 stainless steel, this 3-blade propeller features a 15.625-inch diameter with a 13 pitch, designed to provide optimal hole shot, impressive bow lift, and superior cornering capabilities. Its advanced blade geometry, including improved cup, leading and trailing edges, and aggressive rake, ensures efficient performance across a variety of marine applications. Whether you seek enhanced acceleration, extended cruising range, or better fuel economy, the Mach3 OS delivers consistent, reliable results.

Constructed with 20% higher chromium content than conventional stainless steel, the propeller offers better corrosion resistance and a striking shine, while its strength—almost 250% greater than standard stainless steel—provides increased durability for demanding marine environments. The propeller's large exhaust flow ports, which feature 40% more exhaust flow area compared to competitors, reduce backpressure and increase horsepower output, functioning like headers for your boat. This design helps maximize engine efficiency and overall performance.

Designed to fit all 90hp and larger outboards with 4.75-inch gearcases from manufacturers such as Mercury, Evinrude, Honda, Yamaha, and others, as well as sterndrives like Mercury Alpha One, Bravo One, and Volvo Penta SX, the Mach3 OS is versatile across many boat types. Compatible with 3 and 4-blade models, left and right rotation, it can be paired with a suitable hub kit (sold separately) for precise installation. Choosing the right propeller from Turning Point's lineup ensures faster acceleration, stronger pulling power, and improved handling, helping you get the most out of your vessel.

Note: A hub kit is required for installation, and selecting the appropriate one can be guided by Turning Point’s selection chart or Prop Wizard. For durability and performance, consider adding a Lifetime Warranty MasterGuard Installation Kit tailored to your engine. This propeller is built to enhance your boat's performance, making it an excellent choice for serious boaters seeking reliable, high-quality propulsion.

Warning: This product may expose you to chemicals including lead, which is known to cause cancer, reproductive harm, and other health issues in California. For more information, visit P65Warnings.ca.gov.

Features:

• Material: Proprietary TP17 stainless steel for superior strength and corrosion resistance

• Blade Design: Improved cup, leading and trailing edges with aggressive rake for enhanced performance

• Exhaust Ports: Large, free-flowing exhaust pathways to reduce backpressure and boost horsepower

• Compatibility: Fits 90hp+ outboards and sterndrives from major manufacturers, including Mercury, Yamaha, Honda, and Volvo Penta

• Application: Ideal for high horsepower bay boats, offshore center consoles, and high-performance pontoons