SKU: 46254475172

Turning Point Express® Mach3™ OS™ - Right Hand - Stainless Steel Propeller - OS-1621 - 3-Blade - 15.6" x 21 Pitch

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Description

Turning Point Express® Mach3™ OS™ - Right Hand - Stainless Steel Propeller - OS-1621 - 3-Blade - 15.6" x 21 PitchExpress Mach3 OS Right Hand Stainless Steel Propeller OS 1621 3 Blade 15. 6" x 21 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

Express® Mach3™ OS™ - Right Hand - Stainless Steel Propeller - OS-1621 - 3-Blade - 15.6" x 21 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.


Manufacturer Part Numbers: 31512110
Quick Guide (PDF)
Brochure Literature (PDF)
GRP:WRO
Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • 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: 46254475172

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Destani
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★★★★★ 5
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Reviewed in the United States on January 21, 2026
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Logan Shahan
New York, US
★★★★★ 5
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Color: Black, Size: 4-5T
Material is of good quality, it is flowy enough that she doesn’t sweat or get too hot. The length is a tad longer which I don’t mind for my 4 yr old of average height. She thinks it is comfy and loves wearing it to the golf course to match mom or to the park or pickleball courts. No built in shorts on this dress, which is okay considering how often we use the restroom.
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Reviewed in the United States on September 12, 2025
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AllyBrooke
Whiting, US
★★★★★ 5
Perfect color and comfy wear
Color: Blue, Size: 5-6 Years
Super cute, color is vibrant and a perfect Ole Miss Color ! Very durable for a toddler who's running around swayze field to cheer on her Rebels or even for playing tennis. The fit was perfect for her 5yr old self and she loved it. 5yrs old, 25-30lbs ,45inches tall
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Chrissy
West Palm Beach, US
★★★★★ 5
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Super cute! Lightweight strapless dress. Ties around the waist. Love the bright pink color. My daughter is 4yo, normally wears a 5T in most items and is wearing a 6. Fits great! This is an athletic dress FYI, there are no shorts underneath. Great length.
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Reviewed in the United States on June 27, 2025
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a.shaw
Port Orchard, US
★★★★★ 4
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Color: Black, Size: 4-5T
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