My Account
Shopping Cart

Turning Point Propellers 3150 2131 Express Mach4 14x21 4-Blade Stainless Steel Propeller RH

Manufacturer

Turning Point Propellers

<h3>About Turning Point Propellers</h3><p>Founded in 1997 and headquartered in Jacksonville, Florida, <strong>Turning Point Propellers</strong> has spent more than 26 years doing one thing exceptionally well: engineering boat propellers that outperform the competition. From recreational day boaters to demanding offshore anglers, Turning Point has built a reputation as a go-to source for high-performance aluminum and stainless steel propellers designed to maximize speed, handling, and fuel efficiency on the water.</p><p>Turning Point's philosophy is straightforward — leverage cutting-edge metallurgy, advanced casting technologies, and aggressive blade geometry to produce the best-performing propeller in every category. The result is a lineup that covers everything from small outboards to high-horsepower sterndrive applications, with <a href="/7621-turning-point-propellers-propeller-parts-accessories-202388">propeller parts and accessories</a> rounding out the ecosystem for boaters who want a complete solution.</p><h3>Flagship Product Lines</h3><p>Two series anchor the Turning Point lineup. The <strong>Hustler Series</strong> aluminum propellers are manufactured using an exclusive squeeze-cast process that produces a tighter grain structure, stiffer blades, and resistance to flex — delivering stainless-steel-like performance at an aluminum price point. A proprietary five-step powder coating process adds a uniform, corrosion-resistant finish that stands up to years of saltwater exposure.</p><p>The <strong>Express Series</strong> stainless steel propellers push performance even further. Vented barrels allow exhaust gases to escape during acceleration, reducing water density around the blades and enabling faster hole shots. The Express Mach4's patented Dual Geometry blade design — featuring two different blade shapes in a single propeller — delivers unmatched acceleration and cornering without sacrificing top-end speed. <a href="/7621-turning-point-propellers-quicksilver-propellers-202408">Quicksilver-compatible propellers</a> from Turning Point give Mercury engine owners a compelling high-performance alternative, as the Express and Hustler lines are engineered to fit a broad range of Mercury outboards and sterndrives.</p><h3>MasterGuard Hub System</h3><p>One of Turning Point's most celebrated innovations is the <strong>MasterGuard Hub System</strong> — the first interchangeable hub system ever introduced to the propeller market. Using a patented one-piece design with glass-filled nylon over brass splines, it eliminates the failure points common in traditional sleeve-and-spline and pressed-rubber hub systems. A high-tech polymer cushion absorbs shift shock and impact energy, protecting the engine and drivetrain. MasterGuard hubs carry an industry-leading lifetime warranty and are cross-compatible with Mercury Flo-Torq II, Michigan Wheel XHS, and Solas Rubex hub systems, making them ideal for boaters looking to upgrade without replacing existing hardware.</p><h3>Broad Engine Compatibility</h3><p>Turning Point propellers are engineered to fit engines from virtually every major outboard and sterndrive manufacturer, including Yamaha, Honda, Suzuki, Evinrude, Johnson, OMC, Volvo Penta, Tohatsu, and Mercury. Whether you're shopping for <a href="/7621-turning-point-propellers-acme-propellers-201593">ACME-spline propellers</a> for an inboard or sterndrive application or seeking a direct Quicksilver replacement, Turning Point has a prop to match. Their 500 and 700 Series hub kits further simplify cross-compatibility across 4.25&quot; and 4.75&quot; gearcase sizes.</p><h3>Why Boaters Trust Turning Point</h3><ul><li>Squeeze-cast aluminum and TP17 stainless steel construction for maximum blade strength</li><li>Up to 46% more reverse thrust over competing propeller designs</li><li>Patented Dual Geometry blade design for 4-blade performance without speed loss</li><li>Industry-leading MasterGuard lifetime warranty on hub kits</li><li>Five-step Ultra-Coat powder coating for superior corrosion and impact resistance</li><li>Global distribution network with dealer and OEM partnerships worldwide</li></ul><p>Whether you're chasing top speed on a bass boat, pulling watersports tubes on a pontoon, or navigating offshore swells on a center console, Turning Point Propellers delivers the engineering depth and product breadth to keep your boat performing at its best.</p>

Part Number

3150 2131
08/14/2036 5:47 PM
Sale Price

$436.18

1 left at this price

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Turning Point Express® Mach4 propeller represents a breakthrough in marine propulsion technology, combining the aggressive hole shot and handling of a 4-blade design with the top-end speed typically reserved for 3-blade propellers. This 14-inch diameter by 21-inch pitch stainless steel propeller is engineered for outboard engines from 90-300+ horsepower with 4.75-inch gearcases, featuring right-hand (standard) rotation.

Dual Geometry Technology:

The innovative Dual Geometry blade design is what sets the Mach4 apart from conventional 4-blade propellers. This patented technology eliminates the traditional trade-off between acceleration and top speed, delivering exceptional performance across the entire RPM range.

Key Performance Features:

  • Unprecedented hole shot acceleration with faster planning times
  • Superior lift that raises the entire boat higher out of the water
  • Enhanced handling and ease of steering in all conditions
  • Exceptional stability and control in rough water
  • Maintains 3-blade top-end speed without the typical 4-blade speed loss
  • Reduced steering torque for less fatigue during extended operation

Construction and Materials:

Manufactured from premium stainless steel alloy using advanced casting technology, the Mach4 propeller offers superior strength and durability compared to aluminum alternatives. The high-gloss polished finish provides enhanced corrosion resistance for extended service life in both freshwater and saltwater environments.

Specifications:

  • Diameter: 14 inches
  • Pitch: 21 inches
  • Blades: 4-blade Dual Geometry design
  • Material: Stainless steel construction
  • Rotation: Right-hand (standard rotation)
  • Gearcase: Fits 4.75-inch gearcase housings
  • Engine Range: 90-300+ horsepower outboards

Ideal for performance-oriented boaters who demand maximum acceleration without sacrificing top speed, the Express Mach4 delivers measurable improvements in every aspect of boat performance from launch to cruise.

Products specifications

Diameter

14"

Pitch

21

Rotation

RH

Your site is easy to order items.

Great

Great price/shipping super fast thanks

Orders are received in a timely manner..no complaints

Very easy

No comment at this time

6

Excellent

Grfeat communication. Fast shippings. No issues here.

order # 19072 I shopped all over the net and found you guy to be the best price on the gauge that I bought I ordered over the phone and was very pleased with the help I was given. great guys ! Thanks

Easy navigation of site.

Easy to find and easy to buy. . .

Easy to follow, and found what I was looking for at a very reasonable price. I will be back for more. Customer service very very friendly and helpful when i had to return a part. Was completely no hassle and will gladly keep shopping with Autoplicity for

So far, so good - I think I found the product I wanted to order.

great selection, Excellent Pricing , great shiiping rates

I had a hard time locating all the correct oxygen sensors for my vehicle (requires 4).

Autoplicity had exactly the part I was looking for, for my SRT8 Challenger, at the best price I could find!

Great prices and piece of cake ordering.

I was able to find the lowest price on my 4x4 truck battery with free shipping! Beat everybody else by25.

Best prices I found online.. processed same day and recieved same week..packaged great and works great.

Good price and in stock !

Share icon
Return Policy
Returns are easy at Boatplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy