SKU: 75436894844

Turning Point Express Mach4 - Left Hand - Stainless Steel Propeller - EX1/EX2-1321-4L - 4-Blade - 13" x 21 Pitch

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Description

Turning Point Express Mach4 - Left Hand - Stainless Steel Propeller - EX1/EX2-1321-4L - 4-Blade - 13" x 21 PitchExpress Mach4 Left Hand Stainless Steel Propeller EX1 EX2 1321 4L 4 Blade 13" x 21 Pitch The Prop that put the four in Perfourmance! Turning Points Four Blade revolutionized the propeller market when it was introduced. No one had ever produced a state of the art Swept Cleaver design for 40 150hp applications. These props re wrote the rules, proving that you can run a four blade that has unprecedented hole shot, handling, and rough water stability

Express Mach4 - Left Hand - Stainless Steel Propeller - EX1/EX2-1321-4L - 4-Blade - 13" x 21 Pitch

The Prop that put the four in Perfourmance! Turning Points Four Blade revolutionized the propeller market when it was introduced. No one had ever produced a state-of-the-art Swept Cleaver design for 40-150hp applications. 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. These Turning Point props also produced up to 46% more reverse thrust than other comparable designs in recent tests.

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.

Shipping Notes
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 75436894844

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Heather
Louisville, US
★★★★★ 5
Comfortable athletic sock
Color: White/Halo Gray Assorted Locked-in Fit, Size: Medium
Love these socks. Neutral enough colors to pair with tennis shoes for daily wear but still a fun pattern. Comfortable, and stay in place without slipping down. Fit true to size.
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Reviewed in the United States on July 9, 2025
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JBM
Belleville, US
★★★★★ 5
high-quality, comfortable socks
Size: Medium, Color: Coyote Brown 4 Pairs
The Army Demi Season Breathable Over The Calf Uniform Boot Socks are a must-have for anyone in need of high-quality, comfortable socks for military or tactical use. Here's why I highly recommend them: Pros: 1. **Breathable Design**: These socks feature a breathable construction that helps regulate temperature and moisture, keeping your feet cool and dry even during long hours of wear. This is essential for maintaining comfort and preventing sweat-related issues such as blisters or odors. 2. **Over-The-Calf Length**: The over-the-calf length of these socks provides additional protection and support, helping to prevent chafing and irritation caused by boots or other footwear. It also ensures a secure fit that stays in place throughout the day. 3. **Durable Material**: Made from high-quality materials such as cotton, polyester, and spandex, these socks are built to withstand the rigors of military or tactical use. They hold up well to repeated washing and wear, maintaining their shape and integrity over time. 4. **Cushioned Sole**: The cushioned sole provides added comfort and support, reducing fatigue and impact on your feet during extended periods of standing or walking. It also helps absorb shock and prevent soreness or discomfort. 5. **Versatile Use**: While designed for military or tactical use, these socks are also suitable for various outdoor activities such as hiking, camping, or hunting. Their durable construction and performance features make them a versatile choice for any demanding environment. Cons: 1. **Limited Color Options**: These socks typically come in standard military colors such as black, green, or coyote brown, which may not appeal to everyone's personal style preferences. However, the focus is on functionality rather than fashion. 2. **Sizing**: Some users may find that the sizing runs slightly large or small, depending on individual foot dimensions. It's essential to consult the manufacturer's sizing chart and reviews to ensure the best fit. Overall, the Army Demi Season Breathable Over The Calf Uniform Boot Socks offer superior comfort, durability, and performance for military, tactical, or outdoor use. Their breathable design, over-the-calf length, and cushioned sole make them an essential component of any uniform or gear kit.
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Reviewed in the United States on May 17, 2024
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Joe S.
West Palm Beach, US
★★★★★ 5
Good value.
Size: Medium, Color: Coyote Brown 4 Pairs
These socks are really sturdy and comfortable for the feet.
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Reviewed in the United States on May 30, 2026
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Jerry Walker
Whiting, US
★★★★★ 5
Durability
Size: Large, Color: Coyote Brown 4 Pairs
Love these socks. They’re super comfortable & very durable.
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Reviewed in the United States on April 20, 2026
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jorge diez
Boise, US
★★★★★ 4
Buen material
Size: Small, Color: Stone Grey 1 Pair
Son cómodas y de buen material.
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Reviewed in the United States on May 30, 2026

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