Alpha 4
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Diameter x Pitch
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Recommended forInline 4, V-6, or V-8 gas sterndrives
Fits: Alpha drives, Bravo drives and Outboards 135 hp and above
The Alpha 4 is being discontinued.Mercury recommends the 4-blade SpitFire propeller as the aluminumoption for 90 CT - 150 outboards and Sterndrive applications. Whentransitioning to a SpitFire, increase 1" of pitch from the Alpha 4.
The Spitfire comes in RH (right hand, standard) rotation only.
Recommended forInline 4, V-6, or V-8 gas sterndrives
Fits: Alpha drives, Bravo drives and Outboards 135 hp and above
The Alpha 4 is being discontinued.Mercury recommends the 4-blade SpitFire propeller as the aluminumoption for 90 CT - 150 outboards and Sterndrive applications. Whentransitioning to a SpitFire, increase 1" of pitch from the Alpha 4.
The Spitfire comes in RH (right hand, standard) rotation only.