Turning Point Express Mach4 Left Hand Stainless Steel Propeller (EX-1515-4L) - 15" x 15 Pitch

Express Mach4 - Left Hand - Stainless Steel Propeller - EX-1515-4L - 4-Blade - 15" x 15 Pitch

The Prop that put the "four" in Perfourmance! Turning Point's Four Blade revolutionized the propeller market when it was introduced. No one had ever produced a propeller with two different blade shapes (they call it Dual Geometry) for 90-300+hp applications. This prop is uniquely engineered with two blade geometries: (diagram label 2)two blades utilize the Hustler high performance variable rake and aggressive pitch design for incredible hole shot and cornering, and (diagram label 1) two blades utilize an offshore style design for high speed and maximum stern lift.

These props re-wrote the rules, proving that you can run a four blade that has unprecedented hole shot, handling, and rough water stability without the top-end speed loss you experience with other manufacturers propellers.

Now manufactured in our Industry leading TP17 stainless, the Express Mach4 series is perfect for any application that demands enhanced acceleration, cornering, and load carrying capabilities. This prop series is ideally suited for watersports, sterndrive boats, tri-toons, bay boats, and any vessel that can use stern lift. It is our best upgrade of older stainless designs from the 70s, 80s, 90s, and 00s, and will outrun most newer props, including five blade ski props.

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 Express Mach4 series introduces a revolutionary four-blade propeller designed for high-performance marine applications. Crafted from industry-leading TP17 stainless steel, this propeller combines durability, corrosion resistance, and enhanced performance. Its unique Dual Geometry design features two blades with Hustler high-performance variable rake and aggressive pitch for rapid hole shots and exceptional cornering, while the other two blades feature an offshore-style design optimized for high speeds and stern lift. This innovative configuration provides a balanced blend of acceleration, handling, and top-end speed, making it ideal for a variety of vessels including watersports boats, tri-toons, bay boats, and sterndrives.

The TP17 stainless steel used in the Express Mach4 series boasts 20% higher chromium content than standard stainless steel, offering superior shine and corrosion resistance. It is nearly 250% stronger and five times more durable than typical stainless steel, enabling the design of radical, high-performance propellers that maximize your boat's capabilities. Large, free-flowing exhaust ports are incorporated into the design, providing 40% more exhaust flow area compared to competitors. This reduction in backpressure can generate additional horsepower, akin to performance headers for your boat, translating into better acceleration and overall efficiency.

Manufactured to fit a wide range of engines from 9.9hp to over 300hp, including brands such as Evinrude, Honda, Mercury, Yamaha, Volvo Penta, and more, this propeller is a versatile upgrade for many vessels. The package requires a hub kit for installation, which is compatible with various engine models. Whether you seek faster acceleration, improved handling, or increased stern lift, the Turning Point Express Mach4 offers a reliable solution that outperforms many newer designs, including five-blade ski props. Its durable construction and innovative blade geometry make it an excellent choice for boaters demanding performance and longevity.

Note: A hub kit is required for installation. Refer to the Turning Point selection chart or Prop Wizard for proper hub kit matching. This product may contain chemicals like lead, which can cause health issues; for more information, visit P65Warnings.ca.gov.

Features:

• Four-blade design with Dual Geometry for optimized performance

• Made from industry-leading TP17 stainless steel: higher chromium, stronger, and more durable

• Large exhaust flow ports for increased horsepower and reduced backpressure

• Versatile fit for engines from 9.9hp to 300+hp across multiple brands

• Designed for enhanced acceleration, handling, and stern lift without sacrificing top-end speed