Turning Point Propellers
Turning Point Express® Mach3™ OS™ - Right Hand - Stainless Steel Propeller - OS-1621 - 3-Blade - 15.6" x 21 Pitch
Out of StockNewSKU: 31512110
$706.35$831.00per unit
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Special order from Turning Point Propellers — Estimated 2–4 weeks.
Quick Specs
Diameter (Inches): 15.6"Material: Stainless SteelPitch: 21Rotation: Right
Description
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
Quick Specs
Diameter (Inches) = 15.6" | Material = Stainless Steel | Pitch = 21 | Rotation = Right
Accessories (8)
Specifications
| SKU | 31512110 |
| UPC | 652480206535 |
| Brand | Turning Point Propellers |
| Category | Boat Outfitting |
| Country of Origin | TAIWAN |
| Weight | 17.8 |
| Dimensions | 16 x 16 x 8 |
| Status | Active |
| Last Synced | 8/26/2026, 2:03:40 AM |
Compliance & Shipping
WARNINGProp 65 Notice
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.
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Frequently Bought Together
Compare Key Features
| Feature |  Turning Point Express® Mach3™ OS™ - Right Hand - Stainless Steel Propeller - OS-1621 - 3-Blade - 15.6" x 21 Pitch CURRENT |  PropOne Kit - 250ml | Sea-Dog Galvanized Prop Wrench Fits 1-1/16" Prop Nut | T-H Marine Prop Master Prop Stop Propeller Stop |  PropOne Prop Wash - 1 Litre |
|---|---|---|---|---|---|
| Price | $706.35 | $161.46 | $9.89 | $15.29 | $39.06 |
| Brand | Turning Point Propellers | PropOne | Sea-Dog | T-H Marine Supplies | PropOne |
| Condition | New | New | New | New | New |
| Availability | Out of Stock | In Stock | In Stock | In Stock | In Stock |
| Weight | 17.8 | 1.1 | 0.7 | 0.32 | 2.4 |
| Dimensions | 16 x 16 x 8 | 7 x 4 x 4 | 9 x 2 x 2 | 8 x 6 x 2 | 10 x 4 x 4 |
| SKU | 31512110 | 2050 | 531112 | PMPS-1-DP | 2039 |
| Country | TAIWAN | — | TAIWAN | UNITED STATES | — |
| View Item | View Item | View Item | View Item | View Item |
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Price
$706.35