SKU: 81687498888

Turning Point Express Mach4 - Left Hand - Stainless Steel Propeller - EX-1421-4L - 4-Blade - 14" x 21 Pitch [31502141]

Sale price$175.05 Regular price$194.50
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 11 - Jul 16

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Turning Point Express Mach4 - Left Hand - Stainless Steel Propeller - EX-1421-4L - 4-Blade - 14" x 21 Pitch [31502141]Express Mach4 Left Hand Stainless Steel Propeller EX 1421 4L 4 Blade 14" 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 propeller with two different blade shapes (they call it Dual Geometry) for 90 300+hp applications. This prop is uniquely engineered with two blade geometries: (diagram label 2)two blades utilize the Hustler high

Express® Mach4™ - Left Hand - Stainless Steel Propeller - EX-1421-4L - 4-Blade - 14" 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 propeller with two different blade shapes (they call it Dual Geometry) for 90-300+hp applications. This prop is uniquely engineered with two blade geometries: (diagram label 2)two blades utilize the Hustler high performance variable rake and aggressive pitch design for incredible hole shot and cornering, and (diagram label 1) two blades utilize an offshore style design for high speed and maximum stern lift.

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.

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:

  • Pitch: 21
  • Material: Stainless Steel
  • Diameter (Inches): 14"
  • Rotation: Left
  • Box Dimensions: 8"H x 16"W x 16"L WT: 16.6 lbs
  • UPC: 652480200908

Quick Guide (pdf)
Brochure (pdf)
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
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]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 81687498888

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.6 ★★★★★
Based on 1729 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
J
Verified Purchase
John Mace
Natrona Heights, US
★★★★★ 5
Keeps me organized, and cords hidden
I recently purchased the Oxford Cable Management Boxes, 3 Pack (Small, Medium, Large) with 15 Cable Ties, and I’m thrilled with how they’ve transformed my home office setup. This set is a fantastic solution for anyone looking to tame messy cords and create a clean, organized space. The three different sizes (small: 4.5"W x 9.3"L x 4.7"H, medium: 5.3"W x 12.6"L x 5.1"H, large: 6.2"W x 15.9"L x 5.4"H) are perfect for handling a variety of devices, from small phone chargers to large power strips. I used the large box to neatly conceal my surge protector and its tangle of cords, while the medium and small boxes worked wonders for my desk’s USB hubs and laptop charger. The boxes are made of sturdy, heat- and impact-resistant ABS plastic, which feels durable and gives me confidence they’ll last. What I love most is the thoughtful design. Each box has a pressure-fitted lid that’s easy to open and close, plus two cutouts for routing cables. The included cable ties—6 hook-and-loop, 6 silicone, and 3 twist ties—are a great bonus. The colorful hook-and-loop ties (blue, red, green, yellow, black, white) add a fun touch, while the silicone and twist ties are super practical for securing cords of different thicknesses. These ties made it easy to bundle everything neatly before tucking it into the boxes. The white finish blends seamlessly with my decor, giving my workspace a sleek, professional look. The boxes also have small circle feet on the bottom, which prevent slipping and add a nice touch of stability. I’ve noticed a huge reduction in visual clutter, and it’s reassuring to know my cables are safely contained, reducing tripping hazards and keeping my curious cat away from the wires. Installation was a breeze—less than 15 minutes to organize everything. The boxes are versatile enough for various settings, whether it’s a desk, entertainment center, or gaming setup. My only wish is that they included a few more cable ties, but the 15 provided were sufficient for my needs. Overall, the Oxford Cable Management Boxes have exceeded my expectations. They’re practical, stylish, and effective at keeping cords under control. If you’re tired of cable chaos, this set is a must-have! Highly recommend.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 23, 2025
M
Verified Purchase
Michael Bauer
Bozeman, US
★★★★★ 5
Makes everything look so much clean
got these mostly to deal with all the random cords around the house, and they made a bigger difference than I expected. They’re simple, but they actually do what they’re supposed to. Once everything is tucked inside, it instantly makes the area look way more organized and less cluttered. I’ve been using them for things like power strips and extra cords, and they hide everything really well. They’re lightweight but still feel sturdy enough, and the lids stay on without being annoying to open. Pros: Really helps clean up the look of messy cords Easy to use, no setup needed Simple design that blends in Cons: Not huge, so larger power strips can be a tight fit Plastic isn’t super thick Overall I’d definitely recommend these if you’re trying to make a space look cleaner without doing anything complicated.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 19, 2026
G
Verified Purchase
Genesis Block
Draper, US
★★★★★ 5
Great Space Saver!
I purchased these for our family room charging hub and honestly wish I had known about them sooner. They are sturdy and very kid proof (at least for my kids). I love the push and lift design so little hands can’t just lift it open and they hold a lot yet blend in.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 8, 2026
D
Verified Purchase
Desktop Shopper
Port Orchard, US
★★★★★ 4
Handy boxes hides wire clutter.
Does what it is meant for. A bit hard to open once the top is fitted.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
A
Verified Purchase
AmazingDog
Belleville, US
★★★★★ 5
Clean, secure cable management
These are good cable boxes that close securely. They hide cables very well and look clean and blend into the home well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 5, 2026

recommand products