Mercury is discontinuing the entire Alpha line of props. We will sell until no longer available.
The aluminum Spitfire is the recommended replacement.
135+ HP OutboardsAlpha and Bravo One SterndrivesAluminum4 Blade PropLeft-Hand RotationEquipped with Flo-Torq II hub kit 835257K1
The Alpha 4 propeller is an outstanding prop for runabouts as well as daycruisers. Four-blade propeller performance at an aluminum price. Bolt this prop on and your boat should get on plane quicker and stay on plane at lower speed that with a comparable 3-blade propeller but sacrifice some top end speed loss. Great watersports prop!
Mercury recommends the 4-blade SpitFire propeller as the aluminum option for 90 CT - 150 outboards and Sterndrive applications. When transitioning to a SpitFire, increase 1" of pitch from the Alpha 4.
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