Piranha Propellers Propulsion Kit B-Series 3-Blade

Piranha Propellers Propulsion Kit B-Series 3-Blade — Your On-Water Backup Plan for Cobra I/O and Mid-Range Outboards You can't predict when you'll hit a submerged object — but you can be ready for it. The Piranha B-Series Propulsion Kit gives boaters running 4" gearcase Cobra I/O drives and 70–150HP outboards a complete on-water repair system: a modular spare prop setup plus every tool you need to swap a damaged blade in minutes, right on the water. No tow. No ruined day. No waiting on a shop. Just a 5-minute blade change and you're back underway — because Piranha built the kit that way on purpose. Proudly Made in the USA and backed by a lifetime hub assembly guarantee, the B-Series Propulsion Kit is the smartest piece of safety gear you can carry on your boat. MacombMarineParts.com has it in stock and ready to ship. Application: 4" Gearcase Diameter — Cobra 400 I/O's — 70–150HP Outboards Important compatibility notes: Evinrude/Johnson: Will NOT fit 4-cylinder motors with 6-cylinder gearcase — consult factory Evinrude 70HP, 1999–2001: 4-stroke models only Force through 1994: Consult factory regarding this application Kit Includes: 1 × Piranha Propellers Hub Kit 2 × Piranha Propellers Blade Sets 1 × Piranha Propellers Floating Prop Wrench Kit 1 × Piranha Propellers Self-Draining Gear Bag A complete Piranha Propeller consists of the Hub, 3 Blades, and the Cap. This kit includes two full blade sets — so you're covered even if you damage blades twice. Additional Information Why the Propulsion Kit Beats Just Carrying a Spare Prop You've heard the advice: "Always carry a spare prop." It's not bad advice. But if you run a Piranha, we've got better advice: carry the Propulsion Kit. Here's why. A traditional spare prop is one piece — if it gets damaged too, you're done. The Piranha Propulsion Kit gives you two full blade sets, a floating wrench so you won't lose it overboard, and a self-draining gear bag to keep everything organized and ready. The modular hub design means a blade swap takes 5 minutes, not a trip to the marina. Since you can't break more blades than are on the prop, carrying two full sets means you're covered for virtually any on-water scenario. And because Piranha's blades are individually replaceable, you're not throwing away a whole prop every time something goes wrong — you replace only what's damaged, keep the hub, and stay properly balanced and on-pitch. Why Piranha Composite Outperforms Standard Aluminum Props: Stronger than aluminum — aerospace-grade composite built to outlast traditional metal props in salt and fresh water Shock-absorbing blade design — engineered to take the impact of a strike and protect your lower unit, gears, and prop shaft Repair or re-pitch in minutes — no special tools required; the floating wrench kit is included Corrosion-resistant — no rust, no pitting, season after season Saves on repair costs — replace only the blade, not the entire propeller HydroBites technology — precision ridges on every blade that improve hole shot, reduce vibration, and control ventilation Made in the USA — lifetime hub assembly guarantee included Frequently Asked Questions 1. What's included in the B-Series Propulsion Kit? The kit includes one Piranha Hub Kit, two full 3-Blade Sets, a Floating Prop Wrench Kit, and a Self-Draining Gear Bag — everything you need to assemble a complete propeller and perform an on-water blade swap, twice over. Nothing else to buy. 2. Why does the kit include two blade sets instead of one? Because one strike can damage multiple blades, and being stranded once is one time too many. Two blade sets mean you can handle back-to-back incidents without being stuck. It also ensures you always have a properly balanced, full-pitch spare set ready to go — not just a partial replacement. 3. What is the Floating Prop Wrench Kit and why does it matter? It's a wrench designed to float if dropped overboard — which is exactly what you want when you're doing a blade swap on the water. Losing a tool overboard during a repair is a frustrating and avoidable problem. Piranha solved it. 4. What engines and drives is the B-Series compatible with? The B-Series Propulsion Kit is designed for 4" gearcase Cobra 400 I/O drives and 70–150HP outboards. There are specific compatibility notes for certain Evinrude/Johnson and Force applications — see the Application section above, or contact us at MacombMarineParts.com before ordering if you're unsure about fitment. 5. How does Piranha composite compare to a standard aluminum propeller? Piranha's aerospace-grade composite is stronger than aluminum, lighter, and completely corrosion-resistant. More importantly, when an aluminum prop gets damaged, you replace the whole thing. With Piranha, you replace only the damaged blade — in minutes, on the water — at a fraction of the cost. The Propulsion Kit takes that advantage even further by giving you everything you need to do the repair right there on the boat.