Turning Point Express Mach4 - Left Hand - Stainless Steel Propeller - EX1/EX2-1317-4L - 4-Blade - 13.25" x 17 Pitch

The Express® Mach4™ Left Hand Stainless Steel Propeller is engineered for unparalleled performance and durability in a wide range of marine applications. Whether you're powering watersports, bay boats, or upgrade older stainless designs, the Mach4™ delivers exceptional acceleration, handling, and load-carrying capabilities.

Revolutionary Four Blade Design

The Mach4™ propeller redefined the market with its state-of-the-art Swept Cleaver design tailored for 40-150hp applications. Unlike traditional propellers, the four-blade configuration offers:

• Unprecedented hole shot for quicker acceleration
• Superior handling and stability in rough water
• Enhanced reverse thrust, producing up to 46% more than comparable designs
• Minimal top-end speed loss typically seen with other manufacturers

These advancements make the Mach4™ a top choice for those seeking to outrun five-blade ski props and other newer designs.

Premium TP17 Stainless Steel

Crafted from Turning Point’s proprietary TP17™ stainless steel, the Mach4™ propeller offers unmatched durability and corrosion resistance:

• 20% Higher Chromium Content: Ensures a brilliant shine and superior corrosion resistance compared to competitors.
• Enhanced Strength: TP17™ is nearly 250% stronger and five times more durable than standard stainless steel.
• Innovative Design Freedom: Allows engineers to create radical new propeller designs that maximize your boat’s performance.

Optimized Exhaust Flow

The Mach4™ features large, free-flowing exhaust ports to enhance engine performance:

• 40% More Exhaust Flow Area: Reduces backpressure and increases horsepower, similar to boat headers.
• Improved Propeller Housing: Ensures maximum exhaust flow for better overall engine efficiency.

Compatibility and Installation

The Express® Mach4™ propellers are compatible with a wide range of outboards and sterndrives, including:

Brands
Evinrude®, Force®, Honda®, Johnson®, Mariner®, Mercruiser®, Mercury®, Nissan®, OMC®, Parsun®, Suzuki®, Tohatsu®, Volvo® Penta®, Yamaha®

For installation, select from our Lifetime Warranty MasterGuard Installation Kits tailored to fit your engine. The Mach4™ series offers various configurations:

• 3 and 4 blade options
• Left and right rotation models
• Multiple diameter and pitch choices to suit almost all boat types

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

Product Specifications

Rotation	Left
Diameter	13-1/4"
Material	Stainless Steel
Pitch	17
Box Dimensions	7"H x 15"W x 15"L
Weight	13.85 lbs
UPC	652480206139

Additional Resources

Quick Guide (PDF)

Brochure (PDF)

Watch Our Propeller in Action

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, visit P65Warnings.ca.gov.

Orders of physical products placed by 3 PM EST M-F typically ships the same day, if all requested items are in stock. Weekend orders will typically ship on Monday.

Shipping takes 2-7 days.

We currently ship to the Contiguous 48 States.

Life of Sailing merch is custom made for the customer after an order is placed. Total turnaround is typically 7-14 days from order to doorstep.