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Powertech OST 3 Blade Propellers for 40-140hp Mercury Outboards.
OST 3-Blade diameter varies with pitch, available in 1 inch pitch increments from 14-21 with right hand rotation. The OST is a lightly cupped prop. It has a moderate rake angle. It is an OEM equivalent of the older style OMC SST 3-blade. Every Powertech propeller is expertly crafted for high-performance and durability, even in the harshest saltwater conditions. The Powertech OSN comes with a factory pressed in rubber hub bushing or the optional CLT135 Cushion Lok Driver.
The Powertech Cushion Lok hub system provides smoother and quieter shift engagement and is far less prone to failure than standard rubber hubs. They are field replaceable for quick repairs or interchangeable between different motor manufactures.
4.25″ Gearcase
15 Tooth Spline
Thru Hub Exhaust
M135 Rubber Hub or CLM135 Cushion Lok Hub
Propeller Technologies (www.ssboatprops.com) – (866) 790-7767 – High Volume Distributor of Powertech Propellers – Made in America –
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