SKU: 45695868255

Turning Point Express Mach4 - Right Hand - Stainless Steel Propeller - EX1/EX2-1321-4 - 4-Blade - 13" x 21 Pitch [31432130]

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Description

Turning Point Express Mach4 - Right Hand - Stainless Steel Propeller - EX1/EX2-1321-4 - 4-Blade - 13" x 21 Pitch [31432130]Express Mach4 Right Hand Stainless Steel Propeller EX1 EX2 1321 4 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™ - Right Hand - Stainless Steel Propeller - EX1/EX2-1321-4 - 4-Blade - 13" x 21 Pitch

The Prop that put the “four” in Perfourmance! Turning Point’s 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 70’s, 80’s, 90’s, and ’00’s, 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.

Specifications:

  • Rotation: Right
  • Diameter (Inches): 13"
  • Material: Stainless Steel
  • Pitch: 21
  • Box Dimensions: 8"H x 15"W x 15"L WT: 14.55 lbs
  • UPC: 652480206696

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Exchange/Return Notes
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SKU: 45695868255

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That One Bird Dude
Pawtucket, US
★★★★★ 5
Works as intended
Size: 1-Female to 2-Male Y-Adapter-1 ft
What can I say? Works as intended. Seems pretty decent in quality and has a decent thickness to it! Fits pretty tightly so you don't have to worry about sloppy RCA connections.
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Reviewed in the United States on April 21, 2026
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Roger
Lowell, US
★★★★★ 5
Great Quality
Size: 2 Channel-3 ft, Size: 2 Channel-3 ft
Outstanding quality a very reasonable price. I was able to check the headunit RCA was showing almost 5 volts which was rated on the output of the headunit. I’m not an expert however i am assuming you don’t have to add so much gain. I’m very pleased and i will save this seller.
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Reviewed in the United States on March 25, 2026
J
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Joseph Bragg
Bozeman, US
★★★★★ 5
Pretty good cables for what they are
Size: 2 Channel-3 ft
I purchased these Skar Audio cables here on Amazon because they were an outstanding price. They shipped very quickly. When I open the package mind you they do work pretty good but when I open the package I've noticed that the gold plated connecting points that are supposed to connect to your amplifier and your receiver are a little flimsy and don't fit as tight as they're supposed to so I was concerned that bumps on the road whatever would cause them to loosen up so I had to squeeze them together a little bit so I can make them fit tighter on the amplifier but so far so good and I've had no problems with them. I've had no weird humming no weird crackling or any kind of connection issues whatsoever since I've done this. Just something to take note. Other than that, for the price these are pretty good cables and if you want to spend a little more here on Amazon you can get better cables. I know Skar Audio makes pretty good speakers for what they're worth and they definitely make pretty decent amps. I'm just not quite sure about there quality on cables and such. Just my honest opinion. I know people that love everything that they make so it's all subjective and a matter of opinion. Would I recommend them? For the price definitely.
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Reviewed in the United States on November 13, 2023
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Johnathan Petty
Lexington, US
★★★★★ 4
Quality
Size: 2 Channel-12 ft
Good rca’s
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Reviewed in the United States on March 12, 2026
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BP-JP
West Palm Beach, US
★★★★★ 5
Another Quality Product from Skar Audio
Size: 1-Female to 2-Male Y-Adapter-1 ft
High Quality RCA. I needed a 1 Male to 2 Female RCA Y adapter, and me not reading correctly ordered this. However - I managed to make this work at my AMP instead of the head unit. Great sound quality, Cable is a good gauge and matches my RCA's already ran in the car. Connects easy and had this installed within minutes. Thanks Skar!
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Reviewed in the United States on October 11, 2025

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