Turning Point Express Mach4 Left Hand Stainless Steel 4-Blade Propeller – 14" x 21" Pitch

Express Mach4 - Left Hand - Stainless Steel Propeller - EX-1421-4L - 4-Blade - 14" x 21 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 offers a high-performance, durable propeller designed for demanding boating applications. Crafted from industry-leading TP17 stainless steel, this 14-inch diameter, 21-inch pitch, four-blade propeller features a unique dual geometry design that combines offshore-style blades for high-speed stability and aggressive pitch blades for exceptional hole shot and cornering performance. This innovative configuration provides a significant advantage in acceleration, handling, and rough water stability without sacrificing top-end speed, making it ideal for watersports, sterndrive boats, tri-toons, and bay boats. The prop's advanced engineering allows for improved stern lift and load-carrying capacity, ensuring your vessel performs optimally across various conditions. Manufactured with 20% more chromium than standard stainless steel, the TP17 material ensures higher corrosion resistance, a brilliant shine, and increased strength and durability—almost 250% stronger than typical stainless steel. This allows the prop to withstand harsh marine environments while maintaining peak performance. Additionally, the large free-flowing exhaust ports in Turning Point's propeller housings provide 40% more exhaust flow area compared to competitors, reducing backpressure and boosting horsepower, akin to high-performance headers for your boat. Compatible with a wide range of outboards and sterndrives from brands such as Mercury, Yamaha, Honda, Evinrude, and others, this propeller can be easily installed using a compatible hub kit. Its design ensures faster speeds, harder pulls, and improved handling, making it a leading choice for avid boaters looking to upgrade their vessel's performance. For optimal fit and performance, pairing this prop with a Lifetime Warranty MasterGuard Installation Kit is recommended. Please note that a hub kit is required for installation, and selecting the correct one is essential for proper operation. Experience the difference with Turning Point Propellers—engineered for speed, power, and longevity in every turn.

Features:

• Dual Geometry Design: Combines offshore style and high-performance blades for versatile handling

• High-Performance Material: Made from TP17 stainless steel with 20% more chromium for superior corrosion resistance

• Enhanced Exhaust Flow: Features large exhaust ports that provide 40% more flow area, increasing horsepower

• Optimized for Multiple Applications: Suitable for watersports, sterndrive boats, tri-toons, and bay boats

• Durability and Strength: Nearly 250% stronger and five times more durable than standard stainless steel props