Piranha Propellers Complete B-Series 4 Blade Propeller
4." GEARCASE DIAMETER----Cobra 400 I/O----70 -150HP OB
1 - Piranha Propellers Hub Kit
1 - Piranha Propellers B-Series Propeller Blade Set
“Always carry Spare Blades.”
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?
Stronger than Aluminum
Repair or re-pitch in minutes
Does not corrode
Saves on repair costs
Piranha Propellers and Made in the USA
Macomb Marine Parts and Accessories primary objective is to achieve the best performance from your boat. Macomb Marine Parts and Accessories recognizes Piranha Propellers "Blade Exchange Program". This program allows you to test and exchange undamaged blades until you are satisfied with the performance of the product. Please click here to exchange your blades.
If you are happy with the performance of your current aluminum propeller, order the same pitch in the Piranha.
If you are looking to gain speed, or lower your RPMs, increase your pitch. Every two inches higher in pitch will increase speed 3-5 mph, and decrease the RPMs by approximately 400.
If you are looking to gain hole shot, or increase your RPMs, decrease your pitch. Every two inches in pitch lower will cause you to gain approximately 400 RPMs.
If you are switching from a three blade to a four blade, drop one inch in pitch to compensate for the RPM change.
If you are switching from a four to a three blade, increase one inch in pitch.
If you have any questions about selecting the correct pitch, e-mail us and we will help determine what you need.