• The Signature FOUR by 4 is the ultimate combination of eight blades. Designed to work on the *Bravo 3 and *Yanmar ZT350-370 drives. These twin four blade propellers are so efficient they blow the competition out of the water.
• The Signature Four By 4 Propellers were designed to be a direct replacement for the OEM three blade propellers. It may be necessary to drop pitch sizes when going to the four blade combination due to the efficiency of the extra blades. Generally, a decrease of 200 RPM’s is achieved when like pitches are installed. All mounting hardware remains the same with no additional hardware required.

WARNING: This product contains Nickel, a chemical known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.go