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Mercury Black Max 3 Blade Prop Propeller 14.25 X 21

Free shipping on orders over $29.99

$230.99

$ 93 .99 $93.99

In Stock
  • Die-cast with Mercury Marine's patented Mercalloy aluminum alloy for strength, ductility and durability
  • Classic high gloss Phantom Black EDP (electro deposition paint) finish for maximum corrosion resistance
  • Easy to maintain and repair, uses Flo-Torq II Hub System to cushion and protect the engine drivetrain from most damage causing impacts.
  • Superseded From: 832832A45
  • Right hand rotation


Mercury/Mercruiser/Mariner Black Max Three Blade aluminum prop 14.25 x 21. Includes the Flo-Torq II hub kit. More than just an aluminum propeller, the Black Max is the best three-blade aluminum prop available anywhere. And anywhere is usually where you'll find it. Whenever you need good overall performance, Black Max is there. Designed to fit Mercury/Mariner 135, 150, 175, 200, 225, 250 HP outboards Verado 135-275HP and Mercruiser Alpha and Bravo One under 400 hp (3.0L, 4.3L, 4.3LH, 4.3L EFI, 5.0L, 5.0L EFI, 5.7L, 5.7L EFI, 350 MAG MPI). Features high quality die-cast three-blade aluminum in an attractive Phantom black finish. Durable and easy to maintain and repair. Equipped with Flo-Torq II hub system for the high horsepower outboards and stern drives. This is a right hand rotation prop, left hand rotation (counter rotating) is not available in aluminum.


Sean M Summers
Reviewed in the United States on August 22, 2024
Quick delivery, exactly as advertised. Direct replacement bolt on.
David S.
Reviewed in the United States on June 29, 2023
I own a 2008 215CC Tahoe with a Mercury Optimax 225 DFI. When I bought the boat it had a 4 blade 23 pitch stainless prop. The boat struggled to get on plane with more than two people on board. I just switched to this black max 3 blade 21 pitch and now I am leaping out of the water and achieving WOT RPM’s! Love it
Steve Brimeyer
Reviewed in the United States on November 7, 2023
Nice and smooth running well balanced
Marcelo I. Caceres
Reviewed in the United States on October 14, 2023
Exactamente lo que necesito
James C.
Reviewed in the United States on November 13, 2020
Perfect fit on my Mercruiser 3.0 with the Alpha 1 Gen 2 (135 HP) outdrive. It’s a little more expensive than what my local boat shop sells but they were out of stock and I was on my own. Also, instructions are a bit confusing for the non-mechanic, but if you’re familiar with changing a prop, you’re going to be ok.
Lennart
Reviewed in the United States on September 4, 2019
Price was right
Chris Driver
Reviewed in the United States on July 18, 2019
Smoother than my chipped original. Picked up 2mph or so, easy install
Mark Gilbert
Reviewed in the United States on July 27, 2016
The prop was received the the next day and installed easily with the instructions provided.I immediately noticed the new prop feel of significant loss of vibration.This prop pitch selection was wrong for my application and actually decreased my performance.WOT RPM went down from 3100 RPM to 2700 RPM when changing from a 14.8 X 17p prop to this prop the 14.25 X 21p. The Mercruiser helpdesk identified the 21p prop as the original spec for my 1995 20' Capri, 2052, 4.3LX, alpha one,I also noticed decreased hole shot performance.Lesson Learned: increasing the pitch decreased the WOT RPM instead of increasing the WOT RPM.I'll be looking for a 14.8 X 16p prop now.
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