OEM 3860709 Outboard Propellers 3 Blades & 14 1/2" x 21" & 19 Tooth Splines While boats have multiple parts that contribute to their effectiveness, none are more critical than the propeller. Our 14 1/2" diam. x 21" pitch outboard propeller can directly replace OEM 3860709, compatible with the Volvo Penta SX Drive...All models. The propeller is constructed of duplex stainless steel guaranteeing that this boat propeller is durable enough for extended service life. Direct Replacement Strong Thrust & Stable Propulsion 14 1/2" Diameter x 21" Pitch Upgraded Rubber Hub Duplex Stainless Steel Key Features Direct Replacement: The 14 1/2" diam. x 21" pitch outboard propeller is compatible with the Volvo Penta SX Drive...All models, directly replacing OEM 3860709. Our boat propeller relies on the blades' rotating in the water to convert the engine's rotational power into propulsion, which will suit your boat well. Strong Thrust & Stable Propulsion: Our boat propeller can quickly tighten the