- A complete Piranha Propeller is made up of the Hub, either 3 or 4 Blades, and the Cap.
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Piranha Propellers
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Piranha Propellers B Series 3 Bladed Replacement Blade 13 x 21 | 1321B
Single Replacement Blade
DIAMETER: 13 | PITCH: 21 | COUNT: 3 blade propeller | ROTATION: Right
Generally used on motors (approximatey 75 Hp to 125 Hp).
If you are not sure if this blade is appropriate for your use, please contact us for a recommendation.
Complete or repair your Piranha Propeller Hub Assembly, Propeller, Propusion or Performance kit with a single replacement blade.
Piranha Propellers 3 blade propeller replacement blade fits B Series Piranha Propellers. Don’t leave the dock without spare blades. These blades are also available in 3 Pack sets.
For added convenience, consider getting our floating prop wrench and mesh gear bag.
Piranha blades are designed to absorb shock during a propeller strike. This basically eliminates damage to the lower unit.
The blades will take the brunt of an impact; failing in order to protect the prop shaft, while the center hub absorbs any residual energy, preventing lower unit damage.
Piranha Modular Propeller Systems are “revolutionary” in the boating industry. Manufactured from a patented high strength composite, Piranha Propellers can be repaired or re-pitched for performance in a matter of minutes. Remember to purchase and carry your spare blades!! For the best deal, check out our Pro and Performance Kits. They come with spare blades and floating prop wrench.
WARRANTY
Piranha guarantees the hub for life, you break it ….. that rarely happens ….. Piranha will replace it. The heart of a Piranha Propeller is the aluminum cored center hub. The hub carries a lifetime guarantee. If you damage it for any reason, Piranha will replace it for you (shipping charges not included).
| Diameter |
13 |
|---|---|
| Pitch |
21 |
| Rotation |
Right |
| Blade Count |
3 blade propeller |
| Blade Group |
B3 |
| Series Name |
B Series |
| Make |
Evinrude, Force, Honda, Johnson, Mariner, Mercruiser, Mercury, Nissan, OMC, Suzuki, Tohatsu, Volvo, Yamaha |
You’ve probably already heard it all before from your veteran boating buddies, the folks at the marina, and every magazine writer in the business, that “You should always carry a spare boat propeller.” That’s not bad advice at all. But if you use a Piranha prop, we’ve got BETTER advice:
“Always carry Spare Blades.”
Piranha Propellers are known for their high-strength composite material and their modular construction. The unique hub design allows for fast, easy on-the-go propeller repair, saving boaters time and money.
Piranha’s boat propeller offers the fastest repair time around, but it’s important to have the parts to do the repair with. Whether you use 3 blade boat propellers or 4 blade boat propellers, since you can’t break more blades than are on the prop, we encourage you to simply carry a full spare set. True, you probably won’t damage them all at once, but this way you can ensure the propeller remains properly balanced and maintains the correct propeller pitch. Besides, won’t you feel better knowing you can fix it if you do, without ruining the rest of your day?
Piaranha Propellers:

Would have been 5 stars but, I did not receive a promotional sticker with my $2000 drive unit. Just kidding, everything was great!
Great company to work with!
Ordered a Piranha Propellers Complete A-Series 4 Blade Propeller from Macomb Marine Parts and even though we’re international, it arrived in just over a week — fast and reliable service. The propeller itself is a real lifesaver. We had the same model before, and after hitting a rock that damaged two blades, we were able to swap them right on the water and make it back to the marina without issue — something you simply can’t do with a regular aluminum prop. For peace of mind we decided to buy a complete new set (hub and blades) since an impact like that could cause hidden damage, but the system really proved its worth.
3 in. Exhaust Elbow | Pleasurecraft R029001
Excellent part.
I couldn’t find a Piranha propeller dealer near me in Canada but found Macomb Marine Parts who could deliver to me. The order process was smooth and I was even contacted via email for clarification regarding blade shape and they were very helpful in choosing the best shape for my purposes.
I can’t comment on the prop’s performance yet as we haven’t had the boat in the water yet.
Perfect replacement. thank you
Perfect replacement
Perfect match to the original Chris Craft blue. Competitive price and delivery was quick
Great Product, easy to install, work well
Obtaining magnesium anodes to install on the OMC Cobra (SX-C) sterndrive, for fresh water use. Received the anode within a week of ordering the part, which is not going to be installed until Spring.
Black Liquid Electrical Tape - 4 oz. | Star Brite 084104B
As described
Very Happy!! Just what I needed!!
Outdrive spent 4 months docked in salt water with no visible rust on the stainless steel braided hoses
Would have been 5 stars but, I did not receive a promotional sticker with my $2000 drive unit. Just kidding, everything was great!
Great company to work with!
Ordered a Piranha Propellers Complete A-Series 4 Blade Propeller from Macomb Marine Parts and even though we’re international, it arrived in just over a week — fast and reliable service. The propeller itself is a real lifesaver. We had the same model before, and after hitting a rock that damaged two blades, we were able to swap them right on the water and make it back to the marina without issue — something you simply can’t do with a regular aluminum prop. For peace of mind we decided to buy a complete new set (hub and blades) since an impact like that could cause hidden damage, but the system really proved its worth.
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